DataTable.GetChanges Method ()


The .NET API Reference documentation has a new home. Visit the .NET API Browser on to see the new experience.

Gets a copy of the DataTable that contains all changes made to it since it was loaded or AcceptChanges was last called.

Namespace:   System.Data
Assembly:  System.Data (in System.Data.dll)

Public Function GetChanges As DataTable

Return Value

Type: System.Data.DataTable

A copy of the changes from this DataTable, or null if no changes are found.

Creates a new DataSet containing a copy of all rows in the original DataSet that have pending changes. Relationship constraints can cause additional unchanged rows to be added to the new DataSet if the unchanged rows contain primary keys corresponding to foreign keys in the changed rows. The method returns null (Nothing in Visual Basic) if there are no rows in the original DataSet with pending changes.

Private Sub UpdateDataTable(table As DataTable, _
    myDataAdapter As OleDbDataAdapter)

    Dim xDataTable As DataTable = table.GetChanges()

    ' Check the DataTable for errors.
    If xDataTable.HasErrors Then
        ' Insert code to resolve errors.
    End If

    ' After fixing errors, update the database with the DataAdapter 
End Sub

.NET Framework
Available since 1.1
Return to top