DataTable.GetChanges Method ()

 

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 DataTable GetChanges()

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 void UpdateDataTable(DataTable table, 
    OleDbDataAdapter myDataAdapter)
{
    DataTable xDataTable = table.GetChanges();

    // Check the DataTable for errors.
    if (xDataTable.HasErrors)
    {
        // Insert code to resolve errors.
    }

    // After fixing errors, update the database with the DataAdapter 
    myDataAdapter.Update(xDataTable);
}

.NET Framework
Available since 1.1
Return to top
Show: