Objectdatasource onupdating

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The Drop Down List displays the name of a Northwind employee, while the Text Box controls are used to enter and update address information.

Because the This example has a text box that accepts user input, which is a potential security threat. NET Web pages validate that user input does not include script or HTML elements.

When using the built-in inserting, editing, or deleting features of the Grid View, Details View, or Form View controls, a variety of steps transpire when the end user completes the process of adding a new record or updating or deleting an existing record.

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event to perform additional initialization that is specific to your application, to validate the values of parameters, or to change the parameter values before the Object Data Source control performs the update operation.

The parameters are available as an IDictionary collection that is accessed by the The following three examples show a Web page, a code-behind page class, and a data-access class that enable a user to retrieve and update records in the Employees table in the Northwind database.

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