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BeforeCellDeactivate Event

Occurs before a cell is deactivated.
Syntax
'Declaration
 
Public Event BeforeCellDeactivate As CancelEventHandler
public event CancelEventHandler BeforeCellDeactivate
Event Data

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

PropertyDescription
Cancel  
Remarks

Thecancelargument enables you to programmatically prevent the the cell from deactivating, meaning it will not lose focus. This argument can be used to prevent the user from leaving the cell unless a certain condition is met.

This event is generated when the user attempts to move to a different cell, deactivating the original cell.

TheBeforeCellActivateevent is generated before a cell is activated, which means it will get focus.

TheActiveCellproperty can be used to determine which cell is currently active.

Example
The following sample code illustrates how one can use combination of BeforeCellActivate and BeforeCellDeactivate to change the ActiveCell's appearance. ActiveCellAppearance property off the UltraGridOverride can be used to accomplish the same thing.

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

Imports Infragistics.Shared
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinGrid

  Private Sub UltraGrid1_BeforeCellActivate(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinGrid.CancelableCellEventArgs) Handles ultraGrid1.BeforeCellActivate

      ' Set the appearance of the cell right before the cell is about to be activated.
      ' In the BeforeCellDeactivate, we will reset the BackColor.
      e.Cell.Appearance.BackColor = Color.LightYellow

  End Sub

  Private Sub UltraGrid1_BeforeCellDeactivate(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles ultraGrid1.BeforeCellDeactivate

      ' Reset BackColor the appearance of the cell right before the cell is about
      ' to be deactivated.
      Me.ultraGrid1.ActiveCell.Appearance.ResetBackColor()

  End Sub
using Infragistics.Shared;
using Infragistics.Win;
using Infragistics.Win.UltraWinGrid;
using System.Diagnostics;

private void ultraGrid1_BeforeCellActivate(object sender, Infragistics.Win.UltraWinGrid.CancelableCellEventArgs e)
{

	// Set the appearance of the cell right before the cell is about to be activated.
	// In the BeforeCellDeactivate, we will reset the BackColor.
	e.Cell.Appearance.BackColor = Color.LightYellow;

}

private void ultraGrid1_BeforeCellDeactivate(object sender, System.ComponentModel.CancelEventArgs e)
{

	// Reset BackColor the appearance of the cell right before the cell is about
	// to be deactivated.
	this.ultraGrid1.ActiveCell.Appearance.ResetBackColor( );

}
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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