SqlDataSource::Updating Event
Occurs before an update operation.
Assembly: System.Web (in System.Web.dll)
Handle the Updating event to perform additional initialization operations that are specific to your application, to validate the values of parameters, or to change the parameter values before the SqlDataSource control performs the update operation. The connection to the underlying data source is not yet open when the event handler delegate is called. Therefore, you cannot directly cancel the Update database operation by calling the Cancel method on the DbCommand object that is exposed by the SqlDataSourceCommandEventArgs object. You can, however, cancel the database operation by setting the Cancel property of the SqlDataSourceCommandEventArgs to true.
For more information about handling events, see Consuming Events.
Security Note |
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Values are inserted into parameters without validation, which is a potential security threat. Use the Updating event to validate parameter values before executing the query. For more information, see Script Exploits Overview. |
The following code example demonstrates how to display data that is retrieved from a Microsoft SQL Server database in a DropDownList control and update the record using a TextBox control. The example shows how you can use a DbTransaction object to add transaction context when using the SqlDataSource control to update data.
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.
Security Note