HotSpotMode Property (FpChart)

Gets or sets the default behavior for the System.Web.UI.WebControls.HotSpot objects of an FpChart control when the System.Web.UI.WebControls.HotSpot objects are clicked.

Syntax

Visual Basic
C#

'Declaration
 
Public Overridable Property HotSpotMode As HotSpotMode

'Usage
 
Dim instance As FpChart
Dim value As HotSpotMode
 
instance.HotSpotMode = value
 
value = instance.HotSpotMode

public virtual HotSpotMode HotSpotMode {get; set;}

Property Value

One of the System.Web.UI.WebControls.HotSpotMode enumeration values. The default is NotSet.

Remarks

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.

Example

This example creates a chart control in Spread and maps several events.

public FarPoint.Web.Chart.FpChart FpChart1;

    protected void Page_Load(object sender, EventArgs e)
    {
        if (IsPostBack)
        {

FpChart1 = FpSpread1.ActiveSheetView.Charts[0];
FpChart1.RenderMapArea = true;
FpChart1.HotSpotMode = HotSpotMode.PostBack;
FpChart1.AutoGenerateMapAreaToolTip = true;
FpChart1.EnableClickEvent = true;
FpChart1.MapAreaClick += new FarPoint.Web.Chart.MapAreaClickEventHandler(FpChart1_MapAreaClick);
            return;
FpChart1.Click += new System.Web.UI.ImageClickEventHandler(FpChart1_Click);
        }

FpSpread1.Sheets[0].RowCount = 10;
FpSpread1.Sheets[0].ColumnCount = 10;
FpSpread1.Sheets[0].Cells[1, 0].Value = "s1";
FpSpread1.Sheets[0].Cells[2, 0].Value = "s2";
FpSpread1.Sheets[0].Cells[3, 0].Value = "s3";
FpSpread1.Sheets[0].Cells[4, 0].Value = "s4";
FpSpread1.Sheets[0].Cells[0, 1].Value = "c1";
FpSpread1.Sheets[0].Cells[1, 1].Value = 1;
FpSpread1.Sheets[0].Cells[2, 1].Value = 2;
FpSpread1.Sheets[0].Cells[3, 1].Value = 3;
FpSpread1.Sheets[0].Cells[4, 1].Value = 4;
FpSpread1.Sheets[0].Cells[0, 2].Value = "c2";
FpSpread1.Sheets[0].Cells[1, 2].Value = 7;
FpSpread1.Sheets[0].Cells[2, 2].Value = 8;
FpSpread1.Sheets[0].Cells[3, 2].Value = 9;
FpSpread1.Sheets[0].Cells[4, 2].Value = 10;
FpSpread1.Sheets[0].Cells[0, 3].Value = "c3";
FpSpread1.Sheets[0].Cells[1, 3].Value = 13;
FpSpread1.Sheets[0].Cells[2, 3].Value = 14;
FpSpread1.Sheets[0].Cells[3, 3].Value = 15;
FpSpread1.Sheets[0].Cells[4, 3].Value = 16;
FarPoint.Web.Spread.Model.CellRange range = new FarPoint.Web.Spread.Model.CellRange(0, 0, 4, 4);
FpSpread1.Sheets[0].AddChart(range, typeof(FarPoint.Web.Chart.ClusteredBarSeries), 200, 200, 0, 0, FarPoint.Web.Chart.ChartViewType.View3D, false);

FpChart1 = FpSpread1.Sheets[0].Charts[0];
FpChart1.RenderMapArea = true;
FpChart1.HotSpotMode = HotSpotMode.PostBack;
FpChart1.AutoGenerateMapAreaToolTip = true;
FpChart1.EnableClickEvent = true;       
    }

    protected void FpChart1_MapAreaClick(object sender, FarPoint.Web.Chart.MapAreaClickEventArgs e)
    {
        ListBox1.Items.Clear();       
        ListBox1.Items.Add("AreaIndex:" + e.MapAreaInfo.AreaIndex.ToString());
        ListBox1.Items.Add("Coords:" + e.MapAreaInfo.Coords);
        ListBox1.Items.Add("MapAreaName:" + e.MapAreaInfo.MapAreaName);
        ListBox1.Items.Add("PointIndex:" + e.MapAreaInfo.PointIndex.ToString());
        ListBox1.Items.Add("SeriesIndex:" + e.MapAreaInfo.SeriesIndex.ToString());
        ListBox1.Items.Add("SubSeriesIndex:" + e.MapAreaInfo.SubSeriesIndex.ToString());
        ListBox1.Items.Add("Type:" + e.MapAreaInfo.Type.ToString());
//FarPoint.Web.Chart.HitTest hitTest = this.FpChart1.HitTest(e.MapAreaInfo);
//ListBox1.Items.Add(hitTest.ToString());

    }

 protected void FpChart1_Click(object sender, ImageClickEventArgs e)
    {
        FarPoint.Web.Chart.HitTest hitTest = FpChart1.HitTest(e.X, e.Y);
        ListBox1.Items.Add("click event");
    }

Visual Basic

Public WithEvents FpChart1 As FarPoint.Web.Chart.FpChart

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If (Me.IsPostBack) Then
            FpChart1 = FpSpread1.ActiveSheetView.Charts(0)
            FpChart1.RenderMapArea = True
            FpChart1.HotSpotMode = HotSpotMode.PostBack
            FpChart1.AutoGenerateMapAreaToolTip = True
            FpChart1.EnableClickEvent = True
            Return
        End If

FpSpread1.Sheets(0).RowCount = 10
FpSpread1.Sheets(0).ColumnCount = 10
FpSpread1.Sheets(0).Cells(1, 0).Value = "s1"
FpSpread1.Sheets(0).Cells(2, 0).Value = "s2"
FpSpread1.Sheets(0).Cells(3, 0).Value = "s3"
FpSpread1.Sheets(0).Cells(4, 0).Value = "s4"
FpSpread1.Sheets(0).Cells(0, 1).Value = "c1"
FpSpread1.Sheets(0).Cells(1, 1).Value = 1
FpSpread1.Sheets(0).Cells(2, 1).Value = 2
FpSpread1.Sheets(0).Cells(3, 1).Value = 3
FpSpread1.Sheets(0).Cells(4, 1).Value = 4
FpSpread1.Sheets(0).Cells(0, 2).Value = "c2"
FpSpread1.Sheets(0).Cells(1, 2).Value = 7
FpSpread1.Sheets(0).Cells(2, 2).Value = 8
FpSpread1.Sheets(0).Cells(3, 2).Value = 9
FpSpread1.Sheets(0).Cells(4, 2).Value = 10
FpSpread1.Sheets(0).Cells(0, 3).Value = "c3"
FpSpread1.Sheets(0).Cells(1, 3).Value = 13
FpSpread1.Sheets(0).Cells(2, 3).Value = 14
FpSpread1.Sheets(0).Cells(3, 3).Value = 15
FpSpread1.Sheets(0).Cells(4, 3).Value = 16
Dim range As New FarPoint.Web.Spread.Model.CellRange(0, 0, 4, 4)
FpSpread1.Sheets(0).AddChart(range, GetType(FarPoint.Web.Chart.ClusteredBarSeries), 200, 200, 0, 0, FarPoint.Web.Chart.ChartViewType.View3D, False)

FpChart1 = FpSpread1.Sheets(0).Charts(0)
FpChart1.RenderMapArea = True
FpChart1.HotSpotMode = HotSpotMode.PostBack
FpChart1.AutoGenerateMapAreaToolTip = True
FpChart1.EnableClickEvent = True
    End Sub
  
    Protected Sub FpChart1_MapAreaClick(ByVal sender As Object, ByVal e As FarPoint.Web.Chart.MapAreaClickEventArgs) Handles FpChart1.MapAreaClick
ListBox1.Items.Clear()
ListBox1.Items.Add("AreaIndex:" + e.MapAreaInfo.AreaIndex.ToString())
ListBox1.Items.Add("Coords:" + e.MapAreaInfo.Coords)
ListBox1.Items.Add("MapAreaName:" + e.MapAreaInfo.MapAreaName)
ListBox1.Items.Add("PointIndex:" + e.MapAreaInfo.PointIndex.ToString())
ListBox1.Items.Add("SeriesIndex:" + e.MapAreaInfo.SeriesIndex.ToString())
ListBox1.Items.Add("SubSeriesIndex:" + e.MapAreaInfo.SubSeriesIndex.ToString())
ListBox1.Items.Add("Type:" + e.MapAreaInfo.Type.ToString())

'Dim hit As FarPoint.Web.Chart.HitTest
'hit = FpChart1.HitTest(e.MapAreaInfo)
'ListBox1.Items.Add(hit.ToString())
    End Sub

Protected Sub FpChart1_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles FpChart1.Click
        Dim hit As FarPoint.Web.Chart.HitTest
        hit = FpChart1.HitTest(e.X, e.Y)
        ListBox1.Items.Add("Click event")
    End Sub

Reference

FpChart Class
FpChart Members