バージョン

CancelUpdate メソッド (UltraGridCell)

データが変更されたときの行またはセルの更新をキャンセルします（[ESC]キーの押下と同様です）。
シンタックス
'宣言
 
Public Sub CancelUpdate() 
public void CancelUpdate()
解説

CancelUpdate メソッドをセルに対して起動すると、セルの内容は元の値に戻ります。UltraGridCell の OriginalValue プロパティは、メソッドを起動する前にこの値が何であるかを決定するために使用できます。

CancelUpdate メソッドが行に対して呼び出されると、アクティブ行のセルに行われた変更が削除されます。セルはオリジナルの値を表示し、行は編集モードから出ます。行セレクター ピクチャは、"Write" イメージから "Current" イメージに変わります。DataChanged プロパティは False に設定されます。

使用例
Imports Infragistics.Shared
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinGrid

  Private Sub UltraGrid1_BeforeExitEditMode(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinGrid.BeforeExitEditModeEventArgs) Handles ultraGrid1.BeforeExitEditMode

      ' If the user is canceling the modifications (for example by hitting Escape 
      ' key, then just return because the cell will revert to its original value
      ' in this case and not commit the user's input.
      If e.CancellingEditOperation Then Return

      ' See if the cell in edit mode is from CustomerID column.
      If Me.ultraGrid1.ActiveCell.Column.Key = "CustomerID" Then
          If Me.ultraGrid1.ActiveCell.Text.Length < 4 Then
              ' If the length of the input text is less than 4, then show a message
              ' box to the user.
              MessageBox.Show("Customer ID must be at least 4 characters wide.", _
                              "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Error)

              ' If ForceExit is true, then the UltraGrid will exit the edit mode
              ' regardless of whether you cancel this event or not. ForceExit would
              ' be true for example when the UltraGrid is being disposed of and thus
              ' it can't stay in edit mode. In which case setting Cancel won't do
              ' any good so just cancel the update to revert the cell's value back
              ' to its original value.
              If e.ForceExit Then
                  ' If the UltraGrid must exit the edit mode, then cancel the
                  ' cell update so the original value gets restored in the cell.
                  Me.ultraGrid1.ActiveCell.CancelUpdate()
                  Return
              End If

              ' In normal circumstances where ForceExit is false, set Cancel to 
              ' true so the UltraGrid doesn't exit the edit mode.
              e.Cancel = True
          End If
      End If

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

private void ultraGrid1_BeforeExitEditMode(object sender, Infragistics.Win.UltraWinGrid.BeforeExitEditModeEventArgs e)
{

	// If the user is canceling the modifications (for example by hitting Escape 
	// key, then just return because the cell will revert to its original value
	// in this case and not commit the user's input.
	if ( e.CancellingEditOperation )
		return;

	// See if the cell in edit mode is from CustomerID column.
	if ( this.ultraGrid1.ActiveCell.Column.Key == "CustomerID" )
	{
		if ( this.ultraGrid1.ActiveCell.Text.Length < 4 )
		{
			// If the length of the input text is less than 4, then show a message
			// box to the user.
			MessageBox.Show( 
				"Customer ID must be at least 4 characters wide.", 
				"Input Error",
				MessageBoxButtons.OK,
				MessageBoxIcon.Error );

			// If ForceExit is true, then the UltraGrid will exit the edit mode
			// regardless of whether you cancel this event or not. ForceExit would
			// be true for example when the UltraGrid is being disposed of and thus
			// it can't stay in edit mode. In which case setting Cancel won't do
			// any good so just cancel the update to revert the cell's value back
			// to its original value.
			if ( e.ForceExit )
			{
				// If the UltraGrid must exit the edit mode, then cancel the
				// cell update so the original value gets restored in the cell.
				this.ultraGrid1.ActiveCell.CancelUpdate( );
				return;
			}

			// In normal circumstances where ForceExit is false, set Cancel to 
			// true so the UltraGrid doesn't exit the edit mode.
			e.Cancel = true;
		}
	}

}
参照