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Interface IOfficeChartTrendLine - WindowsForms API Reference | Syncfusion

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    Interface IOfficeChartTrendLine

    Represents a trend line in a chart.

    Namespace: Syncfusion.OfficeChart
    Assembly: Syncfusion.OfficeChart.Base.dll
    Syntax
    public interface IOfficeChartTrendLine

    Properties

    Backward

    Gets or sets the number of periods (or units on a scatter chart) that the trend line extends backward.

    Declaration
    double Backward { get; set; }
    Property Value
    Type
    System.Double
    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2];           
    //Create a new chart series with the name
    IOfficeChartSerie serieMarch = chart.Series.Add("March");
    //Set the data range of chart series � start row, start column, end row, end column
    serieMarch.Values = chart.ChartData[2, 4, 4, 4];
    //Set the chart type
    chart.ChartType = OfficeChartType.Bar_Clustered;
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the backward
    trendline.Backward = 0.3;
    //Set the line color of border
    trendline.Border.LineColor = System.Drawing.Color.Green;
    //Set the line weight
    trendline.Border.LineWeight = OfficeChartLineWeight.Medium;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Create a new chart series with the name
    Dim serieMarch As IOfficeChartSerie = chart.Series.Add("March")
    'Set the data range of chart series � start row, start column, end row, end column
    serieMarch.Values = chart.ChartData(2, 4, 4, 4)
    'Set the chart type
    chart.ChartType = OfficeChartType.Bar_Clustered
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the backward
    trendline.Backward = 0.3
    'Set the line color of border
    trendline.Border.LineColor = System.Drawing.Color.Green
    'Set the line weight
    trendline.Border.LineWeight = OfficeChartLineWeight.Medium
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    Border

    Gets the border of the trend line. Read-only.

    Declaration
    IOfficeChartBorder Border { get; }
    Property Value
    Type
    IOfficeChartBorder
    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2];           
    //Create a new chart series with the name
    IOfficeChartSerie serieMarch = chart.Series.Add("March");
    //Set the data range of chart series � start row, start column, end row, end column
    serieMarch.Values = chart.ChartData[2, 4, 4, 4];
    //Set the chart type
    chart.ChartType = OfficeChartType.Bar_Clustered;
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];  
    //Set the line color of border
    trendline.Border.LineColor = System.Drawing.Color.Green;
    //Set the line weight
    trendline.Border.LineWeight = OfficeChartLineWeight.Medium;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Create a new chart series with the name
    Dim serieMarch As IOfficeChartSerie = chart.Series.Add("March")
    'Set the data range of chart series � start row, start column, end row, end column
    serieMarch.Values = chart.ChartData(2, 4, 4, 4)
    'Set the chart type
    chart.ChartType = OfficeChartType.Bar_Clustered
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the line color of border
    trendline.Border.LineColor = System.Drawing.Color.Green
    'Set the line weight
    trendline.Border.LineWeight = OfficeChartLineWeight.Medium
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    Chart3DOptions

    Gets the chart3D options that is associated with the trendline.Read-only.

    Declaration
    IThreeDFormat Chart3DOptions { get; }
    Property Value
    Type Description
    IThreeDFormat

    The chart3 D options.

    DataLabel

    Gets the data label that is associated with the trendline.Read-only.

    Declaration
    IOfficeChartTextArea DataLabel { get; }
    Property Value
    Type
    IOfficeChartTextArea
    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2];           
    //Create a new chart series with the name
    IOfficeChartSerie serieMarch = chart.Series.Add("March");
    //Set the data range of chart series � start row, start column, end row, end column
    serieMarch.Values = chart.ChartData[2, 4, 4, 4];
    //Set the chart type
    chart.ChartType = OfficeChartType.Bar_Clustered;
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the bold font style for data label 
    trendline.DataLabel.Bold = true;
    //Set the color of data label
    trendline.DataLabel.Color = OfficeKnownColors.Red;
    //Set the font name
    trendline.DataLabel.FontName = "Helvetica";
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Create a new chart series with the name
    Dim serieMarch As IOfficeChartSerie = chart.Series.Add("March")
    'Set the data range of chart series � start row, start column, end row, end column
    serieMarch.Values = chart.ChartData(2, 4, 4, 4)
    'Set the chart type
    chart.ChartType = OfficeChartType.Bar_Clustered
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the bold font style for data label 
    trendline.DataLabel.Bold = True
    'Set the color of data label
    trendline.DataLabel.Color = OfficeKnownColors.Red
    'Set the font name
    trendline.DataLabel.FontName = "Helvetica"
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    DisplayEquation

    Gets or sets a value that indicates whether the equation for the trend line is displayed on the chart or not.

    Declaration
    bool DisplayEquation { get; set; }
    Property Value
    Type Description
    System.Boolean

    Trueif the equation for the trend line is displayed on the chart.Otherwise False.

    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the display equation
    trendline.DisplayEquation = true;
    //Set the display RSSquared
    trendline.DisplayRSquared = true;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the display equation
    trendline.DisplayEquation = True
    'Set the display RSSquared
    trendline.DisplayRSquared = True
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    DisplayRSquared

    Gets of sets a value that indicates whether the R-squared value of the trend line is displayed on the chart or not.

    Declaration
    bool DisplayRSquared { get; set; }
    Property Value
    Type Description
    System.Boolean

    Trueif the R-squared value of the trend line is displayed on the chart.Otherwise False.

    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the display equation
    trendline.DisplayEquation = true;
    //Set the display RSSquared
    trendline.DisplayRSquared = true;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the display equation
    trendline.DisplayEquation = True
    'Set the display RSSquared
    trendline.DisplayRSquared = True
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    Forward

    Gets or sets the number of periods (or units on a scatter chart) that the trend line extends forward.

    Declaration
    double Forward { get; set; }
    Property Value
    Type
    System.Double
    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the intercept as auto
    trendline.InterceptIsAuto = true;
    //Set the name as auto
    trendline.NameIsAuto = true;
    //Set the forward
    trendline.Forward = 0.3;
    //Set the type of trendline
    trendline.Type = OfficeTrendLineType.Logarithmic;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the intercept as auto
    trendline.InterceptIsAuto = True
    'Set the name as auto
    trendline.NameIsAuto = True
    'Set the forward
    trendline.Forward = 0.3
    'Set the type of trendline
    trendline.Type = OfficeTrendLineType.Logarithmic
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    Intercept

    Gets or sets the point where the trend line crosses the value axis.

    Declaration
    double Intercept { get; set; }
    Property Value
    Type
    System.Double
    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the type of trendline
    trendline.Type = OfficeTrendLineType.Polynomial;
    //Set the intercept of trendline
    trendline.Intercept = 0.8;
    //Set the name for trendline
    trendline.Name = "Trendline";
    //Set the order 
    trendline.Order = 3;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the type of trendline
    trendline.Type = OfficeTrendLineType.Polynomial
    'Set the intercept of trendline
    trendline.Intercept = 0.8
    'Set the name for trendline
    trendline.Name = "Trendline"
    'Set the order 
    trendline.Order = 3
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    InterceptIsAuto

    Gets or sets the value that indicates whether the point where the trend line crosses the value axis is automatically determined by the regression.

    Declaration
    bool InterceptIsAuto { get; set; }
    Property Value
    Type Description
    System.Boolean

    Trueif the point where the trend line crosses the value axis.Otherwise False.

    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the intercept as auto
    trendline.InterceptIsAuto = true;
    //Set the name as auto
    trendline.NameIsAuto = true;
    //Set the forward
    trendline.Forward = 0.3;
    //Set the type of trendline
    trendline.Type = OfficeTrendLineType.Logarithmic;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance///Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the intercept as auto
    trendline.InterceptIsAuto = True
    'Set the name as auto
    trendline.NameIsAuto = True
    'Set the forward
    trendline.Forward = 0.3
    'Set the type of trendline
    trendline.Type = OfficeTrendLineType.Logarithmic
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    Name

    Gets or sets name of the trend line.

    Declaration
    string Name { get; set; }
    Property Value
    Type
    System.String
    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the type of trendline
    trendline.Type = OfficeTrendLineType.Polynomial;
    //Set the intercept of trendline
    trendline.Intercept = 0.8;
    //Set the name for trendline
    trendline.Name = "Trendline";
    //Set the order 
    trendline.Order = 3;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the type of trendline
    trendline.Type = OfficeTrendLineType.Polynomial
    'Set the intercept of trendline
    trendline.Intercept = 0.8
    'Set the name for trendline
    trendline.Name = "Trendline"
    'Set the order 
    trendline.Order = 3
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    NameIsAuto

    Gets or sets a value that Indicates whether the name of the trend line is determined automatically or not.

    Declaration
    bool NameIsAuto { get; set; }
    Property Value
    Type Description
    System.Boolean

    Trueif Essential presentation automatically determines the name of the trendline.Otherwise False.

    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the intercept as auto
    trendline.InterceptIsAuto = true;
    //Set the name as auto
    trendline.NameIsAuto = true;
    //Set the forward
    trendline.Forward = 0.3;
    //Set the type of trendline
    trendline.Type = OfficeTrendLineType.Logarithmic;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the intercept as auto
    trendline.InterceptIsAuto = True
    'Set the name as auto
    trendline.NameIsAuto = True
    'Set the forward
    trendline.Forward = 0.3
    'Set the type of trendline
    trendline.Type = OfficeTrendLineType.Logarithmic
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    Order

    Gets or sets the trend line order (an integer greater than 1) when the trend line type is Polynomial.

    Declaration
    int Order { get; set; }
    Property Value
    Type
    System.Int32
    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the type of trendline
    trendline.Type = OfficeTrendLineType.Polynomial;
    //Set the intercept of trendline
    trendline.Intercept = 0.8;
    //Set the name for trendline
    trendline.Name = "Trendline";
    //Set the order 
    trendline.Order = 3;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the type of trendline
    trendline.Type = OfficeTrendLineType.Polynomial
    'Set the intercept of trendline
    trendline.Intercept = 0.8
    'Set the name for trendline
    trendline.Name = "Trendline"
    'Set the order 
    trendline.Order = 3
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    Shadow

    Gets the shadow that is associated with the trendline.Read-only.

    Declaration
    IShadow Shadow { get; }
    Property Value
    Type Description
    IShadow

    The shadow.

    Type

    Returns or sets the trend line type

    Declaration
    OfficeTrendLineType Type { get; set; }
    Property Value
    Type
    OfficeTrendLineType
    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the intercept as auto
    trendline.InterceptIsAuto = true;
    //Set the name as auto
    trendline.NameIsAuto = true;
    //Set the forward
    trendline.Forward = 0.3;
    //Set the type of trendline
    trendline.Type = OfficeTrendLineType.Logarithmic;
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the intercept as auto
    trendline.InterceptIsAuto = True
    'Set the name as auto
    trendline.NameIsAuto = True
    'Set the forward
    trendline.Forward = 0.3
    'Set the type of trendline
    trendline.Type = OfficeTrendLineType.Logarithmic
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()

    Methods

    ClearFormats()

    Clears the formatting of the trend line.

    Declaration
    void ClearFormats()
    Examples
    //Create a presentation instance
    IPresentation presentation = Presentation.Create();
    //Add a blank slide to the presentation
    ISlide slide = presentation.Slides.Add(SlideLayoutType.Blank);
    //Add chart to the slide with position and size
    IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
    //Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan");
    chart.ChartData.SetValue(1, 3, "Feb");
    chart.ChartData.SetValue(1, 4, "March");
    //Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010");
    chart.ChartData.SetValue(2, 2, "60");
    chart.ChartData.SetValue(2, 3, "70");
    chart.ChartData.SetValue(2, 4, "80");
    //Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011");
    chart.ChartData.SetValue(3, 2, "80");
    chart.ChartData.SetValue(3, 3, "70");
    chart.ChartData.SetValue(3, 4, "60");
    //Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012");
    chart.ChartData.SetValue(4, 2, "60");
    chart.ChartData.SetValue(4, 3, "70");
    chart.ChartData.SetValue(4, 4, "80");
    //Create a new chart series with the name
    IOfficeChartSerie serieJan = chart.Series.Add("Jan");
    //Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData[2, 2, 4, 2]; 
    //Add trendline to the serie
    serieJan.TrendLines.Add();
    //Get the trendline of serie
    IOfficeChartTrendLine trendline = serieJan.TrendLines[0];
    //Set the type of trendline
    trendline.Type = OfficeTrendLineType.Polynomial;
    //Set the intercept of trendline
    trendline.Intercept = 0.8;
    //Set the name for trendline
    trendline.Name = "Trendline";
    //Set the order 
    trendline.Order = 3;
    //Clear the trendline formats
    trendline.ClearFormats();
    //Save the presentation
    presentation.Save("Output.pptx");
    //Close the presentation
    presentation.Close();
    'Create a presentation instance
    Dim presentation__1 As IPresentation = Presentation.Create()
    'Add a blank slide to the presentation
    Dim slide As ISlide = presentation__1.Slides.Add(SlideLayoutType.Blank)
    'Add chart to the slide with position and size
    Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
    'Set chart data - Row1
    chart.ChartData.SetValue(1, 2, "Jan")
    chart.ChartData.SetValue(1, 3, "Feb")
    chart.ChartData.SetValue(1, 4, "March")
    'Set chart data - Row2
    chart.ChartData.SetValue(2, 1, "2010")
    chart.ChartData.SetValue(2, 2, "60")
    chart.ChartData.SetValue(2, 3, "70")
    chart.ChartData.SetValue(2, 4, "80")
    'Set chart data - Row3
    chart.ChartData.SetValue(3, 1, "2011")
    chart.ChartData.SetValue(3, 2, "80")
    chart.ChartData.SetValue(3, 3, "70")
    chart.ChartData.SetValue(3, 4, "60")
    'Set chart data - Row4
    chart.ChartData.SetValue(4, 1, "2012")
    chart.ChartData.SetValue(4, 2, "60")
    chart.ChartData.SetValue(4, 3, "70")
    chart.ChartData.SetValue(4, 4, "80")
    'Create a new chart series with the name
    Dim serieJan As IOfficeChartSerie = chart.Series.Add("Jan")
    'Set the data range of chart serie � start row, start column, end row, end column
    serieJan.Values = chart.ChartData(2, 2, 4, 2)
    'Add trendline to the serie
    serieJan.TrendLines.Add()
    'Get the trendline of serie
    Dim trendline As IOfficeChartTrendLine = serieJan.TrendLines(0)
    'Set the type of trendline
    trendline.Type = OfficeTrendLineType.Polynomial
    'Set the intercept of trendline
    trendline.Intercept = 0.8
    'Set the name for trendline
    trendline.Name = "Trendline"
    'Set the order 
    trendline.Order = 3
    'Clear the trendline formats
    trendline.ClearFormats()
    'Save the presentation
    presentation__1.Save("Output.pptx")
    'Close the presentation
    presentation__1.Close()
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