LeftChange Event

Visual Basic
C#

'Declaration
 
Public Event LeftChange As LeftChangeEventHandler

'Usage
 
Dim instance As FpSpread
Dim handler As LeftChangeEventHandler
 
AddHandler instance.LeftChange, handler

public event LeftChangeEventHandler LeftChange

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.

Property	Description
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.

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.

C#

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!");
}

Visual Basic

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

Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows Server 2012 R2, Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10

Reference

FpSpread Class
FpSpread Members
LeftChangeEventArgs Class

User-Task Documentation

Customizing the Scroll Bars