Spread Windows Forms 8.0 Product Documentation
LeftChange Event
Example 


Occurs when the left column changes.
Syntax
'Declaration
 
Public Event LeftChange As LeftChangeEventHandler
'Usage
 
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.

PropertyDescription
ColumnViewportIndex Gets the index of the viewport column in which the change occurred.
NewLeft Gets the index of the new left column.
OldLeft Gets the index of the previous left column.
Remarks

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.

Example
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
Requirements

Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8

See Also

Reference

FpSpread Class
FpSpread Members
LeftChangeEventArgs Class

User-Task Documentation

Customizing the Scroll Bars

 

 


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