Interface IOptimizedUpdate

This interface describes methods for optimized object update.

Namespace: Syncfusion.OfficeChart

Assembly: Syncfusion.OfficeChart.Portable.dll

Syntax

public interface IOptimizedUpdate

Methods

BeginUpdate()

This method should be called before several updates to the object will take place.

Declaration

void BeginUpdate()

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, 500, 300);
//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];
//Set the chart title
chart.ChartTitle = "This is a chart Title";
//Invoke the begin update method
chart.ChartTitleArea.BeginUpdate();
//Set the bold font style
chart.ChartTitleArea.Bold = true;
//Set the color of the text area
chart.ChartTitleArea.Color = OfficeKnownColors.Plum;
//Invoke end update method
chart.ChartTitleArea.EndUpdate();
//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, 500, 300)
'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)
'Set the chart title
chart.ChartTitle = "This is a chart Title"
'Invoke the begin update method
chart.ChartTitleArea.BeginUpdate()
'Set the bold font style
chart.ChartTitleArea.Bold = True
'Set the color of the text area
chart.ChartTitleArea.Color = OfficeKnownColors.Plum
'Invoke end update method
chart.ChartTitleArea.EndUpdate()
'Save the presentation
presentation__1.Save("Output.pptx")
'Close the presentation
presentation__1.Close()

EndUpdate()

This method should be called after several updates to the object took place.

Declaration

void EndUpdate()

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, 500, 300);
//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];
//Set the chart title
chart.ChartTitle = "This is a chart Title";
//Invoke the begin update method
chart.ChartTitleArea.BeginUpdate();
//Set the bold font style
chart.ChartTitleArea.Bold = true;
//Set the color of the text area
chart.ChartTitleArea.Color = OfficeKnownColors.Plum;
//Invoke end update method
chart.ChartTitleArea.EndUpdate();
//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, 500, 300)
'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)
'Set the chart title
chart.ChartTitle = "This is a chart Title"
'Invoke the begin update method
chart.ChartTitleArea.BeginUpdate()
'Set the bold font style
chart.ChartTitleArea.Bold = True
'Set the color of the text area
chart.ChartTitleArea.Color = OfficeKnownColors.Plum
'Invoke end update method
chart.ChartTitleArea.EndUpdate()
'Save the presentation
presentation__1.Save("Output.pptx")
'Close the presentation
presentation__1.Close()