[C#]	public event WinSelectionEventHandler SelectionChanged;
[VB]	Public Event SelectionChanged As WinSelectionEventHandler

This event occurs when the user is selecting a region on the chart using "drag to select" mouse actions.

WinSelectionEventHandler is a delegate representing the signature of the method that can be used to handle hot spot events. It is declared as follows.

[VB]	Public Delegate Sub WinSelectionEventHandler(sender As Object, e As WinSelectionEventArgs)
[C#]	public delegate void WinSelectionEventHandler(object sender, WinSelectionEventArgs e);

In the above, "sender" is the object that raises the event, and "e" is a WinSelectionEventArgs object that contains the event data.