This method is supported only if the objects contained by the data source implement the System.ComponentModel.IEditableObject or System.ComponentModel.ICancelAddNew interfaces.
This property was designed to be used by complex data-bound controls, such as the System.Windows.Forms.DataGridView control. Unless you are creating a control that requires this same functionality, you should not use this method. Instead, if the data source is either a System.Data.DataView or System.Data.DataTable, use the System.Data.DataRowView.EndEdit method of the System.Data.DataRowView class.