This documentation is archived and is not being maintained.

DataSourceView.Update Method

Performs an asynchronous update operation on the list of data that the DataSourceView object represents.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

Public Overridable Sub Update ( _
	keys As IDictionary, _
	values As IDictionary, _
	oldValues As IDictionary, _
	callback As DataSourceViewOperationCallback _
Dim instance As DataSourceView 
Dim keys As IDictionary 
Dim values As IDictionary 
Dim oldValues As IDictionary 
Dim callback As DataSourceViewOperationCallback

instance.Update(keys, values, oldValues, _


Type: System.Collections.IDictionary

An IDictionary of object or row keys to be updated by the update operation.

Type: System.Collections.IDictionary

An IDictionary of name/value pairs that represent data elements and their new values.

Type: System.Collections.IDictionary

An IDictionary of name/value pairs that represent data elements and their original values.

Type: System.Web.UI.DataSourceViewOperationCallback

A DataSourceViewOperationCallback delegate that is used to notify a data-bound control when the asynchronous operation is complete.


The DataSourceViewOperationCallback supplied is Nothing.

The Update method is the asynchronous data modification interface for all data source view objects. The Update method calls the ExecuteUpdate method using any keys, values, and oldValues parameter values supplied. The callback parameter is a delegate that a data-bound control passes to the data source view, which is used to notify the data-bound control when the ExecuteUpdate operation has completed. The method uses the parameters of the DataSourceViewOperationCallback delegate to return the number of affected records and any Exception exception that is thrown by the ExecuteUpdate call.

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

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