Assembly: System.Data (in system.data.dll)
DataRow objects contained by the DataSet can each be set into edit mode by invoking the DataRow.BeginEdit method. After invoking the DataRow.EndEdit method, changes can be rejected by calling the DataTable.RejectChanges on the DataTable to which the DataRow objects belong.
When the DataTable.RejectChanges method is called, any rows still in edit-mode cancel their edits. New rows are removed. Modified and deleted rows return back to their original state (DataRowState.Unchanged).
AcceptChanges and RejectChanges only apply to DataRow related changes (that is, Add, Remove, Delete, and Modify). They are not applicable to schema or structural changes.
The following example shows a class derived from the DataSet class. The RejectChanges event is invoked from within a function.
Private Sub RejectChangesInDataSet() ' Instantiate the derived DataSet. Dim derivedData As DerivedDataSet derivedData = New DerivedDataSet() ' Insert code to change values. ' Invoke the RejectChanges method in the derived class. derivedData.RejectDataSetChanges() End Sub Public Class DerivedDataSet Inherits System.Data.DataSet Public Sub RejectDataSetChanges() ' Invoke the RejectChanges method. Me.RejectChanges() End Sub End Class
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.