//
// ClickHotSpot event handler. In this demo, we just display the hot spot parameters in a pop up
// dialog.
//
private void WPFChartViewer1_ClickHotSpot(object sender, WPFHotSpotEventArgs e)
{
System.Diagnostics.Debug.WriteLine("w=" + Width + ". h=" + Height);
var viewer = sender as WPFChartViewer;
// We show the pop up dialog only when the mouse action is not in zoom-in or zoom-out mode.
if ((viewer.MouseUsage != WinChartMouseUsage.ZoomIn) &&
(viewer.MouseUsage != WinChartMouseUsage.ZoomOut))
{
new ParamViewer().Display(sender, e);
}
}
public void Display(object sender, WPFHotSpotEventArgs e)
{
// Add the name of the ChartViewer control that is being clicked
dataGrid.Items.Add(new DictionaryEntry("source", (sender as WPFChartViewer).Name));
// List out the parameters of the hot spot
foreach (var key in e.AttrValues)
{
dataGrid.Items.Add(key);
}
// Display the form
ShowDialog();
}
/// <summary>
/// Handler for the ClickHotSpot event, which occurs when the mouse clicks on
/// a hot spot on the chart
/// </summary>
private void chartViewer_ClickHotSpot(object sender, WPFHotSpotEventArgs e)
{
// In this demo, just list out the information provided by ChartDirector about hot spot
new ParamViewer().Display(sender, e);
}