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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)

'Declaration
Public Delegate Sub DataRowChangeEventHandler ( _
	sender As Object, _
	e As DataRowChangeEventArgs _
)
'Usage
Dim instance As New DataRowChangeEventHandler(AddressOf HandlerMethod)

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 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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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