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ObjectDataSourceView::OnUpdating Method (ObjectDataSourceMethodEventArgs^)

.NET Framework (current version)
 

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

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

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protected:
virtual void OnUpdating(
	ObjectDataSourceMethodEventArgs^ e
)

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 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.

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

.NET Framework
Available since 2.0
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