DataTable.RowDeleted Evento
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Se produce después de eliminar una fila de la tabla.
public:
event System::Data::DataRowChangeEventHandler ^ RowDeleted;
public event System.Data.DataRowChangeEventHandler? RowDeleted;
public event System.Data.DataRowChangeEventHandler RowDeleted;
[System.Data.DataSysDescription("DataTableRowDeletedDescr")]
public event System.Data.DataRowChangeEventHandler RowDeleted;
member this.RowDeleted : System.Data.DataRowChangeEventHandler
[<System.Data.DataSysDescription("DataTableRowDeletedDescr")>]
member this.RowDeleted : System.Data.DataRowChangeEventHandler
Public Custom Event RowDeleted As DataRowChangeEventHandler
Tipo de evento
- Atributos
Ejemplos
private static void DataTableRowDeleted()
{
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 RowDeleted event handler for the table.
customerTable.RowDeleted += new DataRowChangeEventHandler(Row_Deleted);
// 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_Deleted(object sender, DataRowChangeEventArgs e)
{
Console.WriteLine("Row_Deleted Event: name={0}; action={1}",
e.Row["name", DataRowVersion.Original], e.Action);
}
Private Sub DataTableRowDeleted()
Dim customerTable As New DataTable("Customers")
' add columns
customerTable.Columns.Add("id", Type.GetType("System.Int32"))
customerTable.Columns.Add("name", Type.GetType("System.String"))
customerTable.Columns.Add("address", Type.GetType("System.String"))
' set PrimaryKey
customerTable.Columns("id").Unique = True
customerTable.PrimaryKey = New DataColumn() {customerTable.Columns("id")}
' add a RowDeleted event handler for the table.
AddHandler customerTable.RowDeleted, New _
DataRowChangeEventHandler(AddressOf Row_Deleted)
' add ten rows
Dim id As Integer
For id = 1 To 10
customerTable.Rows.Add( _
New Object() {id, String.Format("customer{0}", id), _
String.Format("address{0}", id)})
Next
customerTable.AcceptChanges()
' Delete all the rows
Dim row As DataRow
For Each row In customerTable.Rows
row.Delete()
Next
End Sub
Private Sub Row_Deleted(ByVal sender As Object, _
ByVal e As DataRowChangeEventArgs)
Console.WriteLine("Row_Deleted Event: name={0}; action={1}", _
e.Row("name", DataRowVersion.Original), e.Action)
End Sub
Comentarios
Para obtener más información, consulte Control de eventos de DataTable.