Class ViewAnnotation

This class is used to add an view annotation in SfCartesianChart.An instance of this class need to be added to Annotations collection.

Inheritance

System.Object

ChartAnnotation

ViewAnnotation

Inherited Members

ChartAnnotation.CoordinateUnit

ChartAnnotation.CoordinateUnitProperty

ChartAnnotation.Draw(ICanvas, RectF)

ChartAnnotation.IsVisible

ChartAnnotation.IsVisibleProperty

ChartAnnotation.X1

ChartAnnotation.X1Property

ChartAnnotation.XAxisName

ChartAnnotation.XAxisNameProperty

ChartAnnotation.Y1

ChartAnnotation.Y1Property

ChartAnnotation.YAxisName

ChartAnnotation.YAxisNameProperty

Namespace: Syncfusion.Maui.Charts

Assembly: Syncfusion.Maui.Charts.dll

Syntax

public class ViewAnnotation : ChartAnnotation

Remarks

ViewAnnotation is used to add any custom shape or custom view over the chart area.

<chart:SfCartesianChart.Annotations>
  <chart:ViewAnnotation X1="3" Y1="10">
    <chart:ViewAnnotation.View>
        <Label Text = "ViewAnnotation"/>
    </chart:ViewAnnotation.View>
  </chart:ViewAnnotation>
</chart:SfCartesianChart.Annotations>

 SfCartesianChart chart = new SfCartesianChart();
 var view = new ViewAnnotation()
 {
   X1 = 3,
   Y1 = 10,  
 };
var label = new Label()
{
   Text = "ViewAnnotation",
};

view.View = label;

chart.Annotations.Add(view);

Constructors

ViewAnnotation()

Declaration

public ViewAnnotation()

Fields

HorizontalAlignmentProperty

Identifies the HorizontalAlignment bindable property.

Declaration

public static readonly BindableProperty HorizontalAlignmentProperty

Field Value

Type	Description
Microsoft.Maui.Controls.BindableProperty	The identifier for HorizontalAlignment bindable property.

VerticalAlignmentProperty

Identifies the VerticalAlignment bindable property.

Declaration

public static readonly BindableProperty VerticalAlignmentProperty

Field Value

Type	Description
Microsoft.Maui.Controls.BindableProperty	The identifier for VerticalAlignment bindable property.

ViewProperty

Identifies the View bindable property.

Declaration

public static readonly BindableProperty ViewProperty

Field Value

Type	Description
Microsoft.Maui.Controls.BindableProperty	The identifier for View bindable property.

Properties

HorizontalAlignment

Gets or sets the horizontal alignment of the view.

Declaration

public ChartAlignment HorizontalAlignment { get; set; }

Property Value

Type	Description
ChartAlignment	This property takes the ChartAlignment as its value and its default value is Center.

Examples

MainPage.xaml
MainPage.xaml.cs

<chart:SfCartesianChart.Annotations>
  <chart:ViewAnnotation X1="3" Y1="10" HorizontalAlignment="Start">
    <chart:ViewAnnotation.View>
        <Label Text = "ViewAnnotation"/>
    </chart:ViewAnnotation.View>
  </chart:ViewAnnotation>
</chart:SfCartesianChart.Annotations>

 SfCartesianChart chart = new SfCartesianChart();
 var view = new ViewAnnotation()
 {
   X1 = 3,
   Y1 = 10,  
   HorizontalAlignment = ChartAlignment.Start,
 };
var label = new Label()
{
   Text = "ViewAnnotation",
};

view.View = label;

chart.Annotations.Add(view);

VerticalAlignment

Gets or sets the vertical alignment of the view.

Declaration

public ChartAlignment VerticalAlignment { get; set; }

Property Value

Type	Description
ChartAlignment	This property takes the ChartAlignment as its value and its default value is Center.

Examples

MainPage.xaml
MainPage.xaml.cs

<chart:SfCartesianChart.Annotations>
  <chart:ViewAnnotation X1="3" Y1="10" VerticalAlignment="Start">
    <chart:ViewAnnotation.View>
        <Label Text = "ViewAnnotation"/>
    </chart:ViewAnnotation.View>
  </chart:ViewAnnotation>
</chart:SfCartesianChart.Annotations>

 SfCartesianChart chart = new SfCartesianChart();
 var view = new ViewAnnotation()
 {
   X1 = 3,
   Y1 = 10,  
   VerticalAlignment = ChartAlignment.Start,
 };
var label = new Label()
{
   Text = "ViewAnnotation",
};

view.View = label;

chart.Annotations.Add(view);

View

Gets or sets the View that represents custom view for annotation

Declaration

public View View { get; set; }

Property Value

Type	Description
Microsoft.Maui.Controls.View	This property takes the Microsoft.Maui.Controls.View as its value and its default value is null

Examples

MainPage.xaml
MainPage.xaml.cs

<chart:SfCartesianChart.Annotations>
  <chart:ViewAnnotation X1="3" Y1="10">
    <chart:ViewAnnotation.View>
        <Label Text = "ViewAnnotation"/>
    </chart:ViewAnnotation.View>
  </chart:ViewAnnotation>
</chart:SfCartesianChart.Annotations>

 SfCartesianChart chart = new SfCartesianChart();
 var view = new ViewAnnotation()
 {
   X1 = 3,
   Y1 = 10,  
 };
var label = new Label()
{
   Text = "ViewAnnotation",
};

view.View = label;

chart.Annotations.Add(view);

Methods

OnBindingContextChanged()

Declaration

protected override void OnBindingContextChanged()