Public Sub Select( _
   ByVal x As Integer, _
   ByVal y As Integer, _
   ByRef series As String, _
   ByRef point As Integer _
) 

Visual Basic (Usage)	Copy Code
Dim instance As Chart Dim x As Integer Dim y As Integer Dim series As String Dim point As Integer   instance.Select(x, y, series, point)

public void Select( 
   int x,
   int y,
   out string series,
   out int point
)

Parameters

x

The x-coordinate value of the point the user clicked on.
x coordinate position

y

The y-coordinate value of the point the user clicked on.
y coordinate position

series

The series that the user selected.
Selected data series

point

The DataPoint that the user selected.
Selected data point

To determine what data point the user selected pass in the X and Y value mouse coordinates that the user clicked on. The series and points parameters will then be populated, letting the developer know what data point the user selected.

The mouse click coordinates are obtained from the ImageClickEventArgs argument of the control's Click event, which is used to handle the selection.

NOTE that we HIGHLY RECOMMEND using client-side image maps for drilldown because of its ease of use!  The Select method only exists for backwards compatibility with code written for previous versions of the Chart control.

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

Reference