RenderMapArea Property

Visual Basic
C#

'Declaration
 
Public Overridable Property RenderMapArea As Boolean

'Usage
 
Dim instance As FpChart
Dim value As Boolean
 
instance.RenderMapArea = value
 
value = instance.RenderMapArea

public virtual bool RenderMapArea {get; set;}

The EnableClickEvent property specifies whether the Click event fires.

The MapAreaClick event fires if the RenderMapArea property is true and the EnableClickEvent property is false. If the RenderMapArea property is false and the EnableClickEvent property is true, only the Click event fires. If the RenderMapArea property is true and the EnableClickEvent property is true, the MapAreaClick event fires if the user clicks on a chart element. The Click event fires if the user clicks on the chart background.

The HotSpotMode property is used if RenderMapArea is true. HotSpotMode determines the behavior when the user clicks in a map area. The options are inactive, navigate, and post back. The inactive option is useful if you wish to display a tooltip in the map area. If the HotSpotMode is set to post back, the MapAreaClick and Client events are fired. If the RenderMapArea property is false, the HotSpotMode property has no effect.

This example uses the RenderMapArea property.

C#

FpChart1.RenderMapArea = true;
FpChart1.HotSpotMode = HotSpotMode.PostBack;

protected void FpChart1_MapAreaClick(object sender, MapAreaClickEventArgs e)
{
HitTest hitTest = this.FpChart1.HitTest(e.MapAreaInfo);
this.Label1.Text = hitTest.ToString();
}

Visual Basic

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If (Me.IsPostBack) Then Return
        FpChart1.RenderMapArea = True
        FpChart1.HotSpotMode = HotSpotMode.PostBack
End Sub

Protected Sub FpChart1_MapAreaClick(ByVal sender As Object, ByVal e As FarPoint.Web.Chart.MapAreaClickEventArgs) Handles FpChart1.MapAreaClick
        Dim hit As FarPoint.Web.Chart.HitTest
        hit = FpChart1.HitTest(e.MapAreaInfo)
        ListBox1.Items.Add(hit.ToString())
End Sub

Reference

FpChart Class
FpChart Members