ObjectDataSourceView::OnUpdating Method (ObjectDataSourceMethodEventArgs^)

 

Raises the Updating event before the ObjectDataSourceView object attempts an update operation.

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

protected:
virtual void OnUpdating(
	ObjectDataSourceMethodEventArgs^ e
)

Raising an event invokes the event handler through a delegate. For more information, see NIB: 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 Inheritors:

When 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.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 2.0
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