DataRowChangeEventHandler Delegate

 

Represents the method that will handle the RowChanging, RowChanged, RowDeleting, and RowDeleted events of a DataTable.

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

Public Delegate Sub DataRowChangeEventHandler (
	sender As Object,
	e As DataRowChangeEventArgs
)

Parameters

sender
Type: System.Object

The source of the event.

e
Type: System.Data.DataRowChangeEventArgs

A DataRowChangeEventArgs that contains the event data.

When you create a DataRowChangeEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, until you remove the delegate. For more information about delegates, see NIB: Events and Delegates.

The following example adds a DataRowChangeEventHandler and the procedure to handle the event when a row is changed. The procedure prints the action and value of the changed row.

Private dataTable As DataTable    

Private Sub [AddHandler]()
    dataTable = New DataTable("dataTable")
    AddHandler dataTable.RowChanged, AddressOf dataTable_Changed
End Sub    

Private Sub dataTable_Changed _
   (sender As Object, e As System.Data.DataRowChangeEventArgs)

    Console.WriteLine("Row Changed", e.Action, _
       e.Row(dataGrid1.CurrentCell.ColumnNumber))
End Sub

.NET Framework
Available since 1.1
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