ObjectDataSourceView::OnUpdating Method
Raises the Updating event before the ObjectDataSourceView object attempts an update operation.
Assembly: System.Web (in System.Web.dll)
Parameters
- e
- Type: System.Web.UI.WebControls::ObjectDataSourceMethodEventArgs
An ObjectDataSourceMethodEventArgs that contains the event data.
Raising an event invokes the event handler through a delegate. For more information, see Consuming Events.
The OnUpdating method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to InheritorsWhen overriding the OnUpdating method in a derived class, be sure to call the OnUpdating method for the base class so that registered delegates receive the event.
The following code example demonstrates how to use a DropDownList control, TextBox controls, and several ObjectDataSource controls to update data. The DropDownList displays the name of a NorthwindEmployee, while the TextBox controls are used to enter and update address information. Because the UpdateParameters collection contains a ControlParameter object that is bound to the selected value of the DropDownList, the button that triggers the Update operation is enabled only after an employee is selected.
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.