Spread Windows Forms 12.0 Product Documentation
LeftChange Event

FarPoint.Win.Spread Assembly > FarPoint.Win.Spread Namespace > FpSpread Class : LeftChange Event
Occurs when the left column changes.
Public Event LeftChange As LeftChangeEventHandler
Dim instance As FpSpread
Dim handler As LeftChangeEventHandler
AddHandler instance.LeftChange, handler
public event LeftChangeEventHandler LeftChange
Event Data

The event handler receives an argument of type LeftChangeEventArgs containing data related to this event. The following LeftChangeEventArgs properties provide information specific to this event.

Gets the index of the viewport column in which the change occurred.  
Gets the index of the new left column.  
Gets the index of the previous left column.  

This event is raised by the OnLeftChange method when a different column becomes the new leftmost column.

For more details on the individual event arguments, refer to LeftChangeEventArgs members.

This example raises the LeftChange event when the leftmost column changes.
fpSpread1.AddViewport(0, 0);
fpSpread1.ShowColumn(0, 5, FarPoint.Win.Spread.HorizontalPosition.Left);

private void fpSpread1_LeftChange(object sender, FarPoint.Win.Spread.LeftChangeEventArgs e)
     ListBox1.Items.Add("LeftChange event fired!");
FpSpread1.AddViewport(0, 0)
FpSpread1.ShowColumn(0, 5, FarPoint.Win.Spread.HorizontalPosition.Left)

Private Sub FpSpread1_LeftChange(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.LeftChangeEventArgs) Handles FpSpread1.LeftChange
     ListBox1.Items.Add("LeftChange event fired!")
End Sub
See Also