Spread Windows Forms 6.0 Product Documentation
LeftChange Event
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FarPoint.Win.Spread Assembly > FarPoint.Win.Spread Namespace > FpSpread Class : LeftChange Event

Glossary Item Box

Occurs when left column changes.


Visual Basic (Declaration) 
Public Event LeftChange As LeftChangeEventHandler
Visual Basic (Usage)Copy Code
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.

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#Copy Code
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 BasicCopy Code
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 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

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