DataSourceView::Update Method
Performs an asynchronous update operation on the list of data that the DataSourceView object represents.
Assembly: System.Web (in System.Web.dll)
public: virtual void Update( IDictionary^ keys, IDictionary^ values, IDictionary^ oldValues, DataSourceViewOperationCallback^ callback )
Parameters
- keys
- Type: System.Collections::IDictionary
An IDictionary of object or row keys to be updated by the update operation.
- values
- Type: System.Collections::IDictionary
An IDictionary of name/value pairs that represent data elements and their new values.
- oldValues
- Type: System.Collections::IDictionary
An IDictionary of name/value pairs that represent data elements and their original values.
- callback
- Type: System.Web.UI::DataSourceViewOperationCallback
A DataSourceViewOperationCallback delegate that is used to notify a data-bound control when the asynchronous operation is complete.
| Exception | Condition |
|---|---|
| ArgumentNullException | The DataSourceViewOperationCallback supplied is nullptr. |
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 SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.