RowDeleting Event
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DataTable.RowDeleting Event

 

Occurs before a row in the table is about to be deleted.

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

public event DataRowChangeEventHandler RowDeleting

For more information, see Handling DataTable Events.

private static void DataTableRowDeleting()
{
    DataTable customerTable = new DataTable("Customers");
    // add columns
    customerTable.Columns.Add( "id", typeof(int));
    customerTable.Columns.Add( "name", typeof(string));
    customerTable.Columns.Add( "address", typeof(string));

    // set PrimaryKey
    customerTable.Columns[ "id" ].Unique = true;
    customerTable.PrimaryKey = new DataColumn[] 
        { customerTable.Columns["id"] };

    // add a RowDeleting event handler for the table.
    customerTable.RowDeleting += new DataRowChangeEventHandler( Row_Deleting );


    // add ten rows
    for( int id=1; id<=10; id++)
    {
        customerTable.Rows.Add( 
            new object[] { id, string.Format("customer{0}", id), 
            string.Format("address{0}", id) });
    }

    customerTable.AcceptChanges();

    // Delete all the rows
    foreach( DataRow row in customerTable.Rows )
        row.Delete();
}

private static void Row_Deleting( object sender, 
    DataRowChangeEventArgs e )
{
    Console.WriteLine( "Row_Deleting Event: name={0}; action={1}", 
        e.Row["name"], e.Action );
}

.NET Framework
Available since 1.1
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