The second Object Data Source control and the Details View control are used to retrieve, display, and modify the data from the employee record that is selected by the user.event handler deserializes the object in view state that contains the original data for the data record that is being updated.The object that contains the original data is passed as a parameter to the Update method.

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The following code example demonstrates how to use an Object Data Source control with a business object and a Grid View control to delete data.

The following code example demonstrates how to display and update data retrieved from an ODBC database in a Grid View control.

The following code example demonstrates how to retrieve data from Microsoft SQL Server, display it in a Grid View control, and use a Details View control to see details of a selected row in the Grid View and as a form to insert new records.

Initially, the data is displayed in the Grid View control and the selected row of the Grid View is also displayed in the Details View control.

After a record is successfully updated, the Updated event is handled by an event handler to perform a post-processing step where an e-mail message notification is sent.

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 Sql Data Source control performs the update operation.

You can, however, cancel the database operation by setting the The following code example demonstrates how to display data that is retrieved from a Microsoft SQL Server database in a Drop Down List control and update the record using a Text Box control.

The example shows how you can use a Db Transaction object to add transaction context when using the Sql Data Source control to update data.

Is it possible to use a variable as an update parameter in asp.net?

I have the page number to be updated stored in a variable called 'mypagenum', how would I write an update parameter using that value.

The connection to the underlying data source is not yet open when the event handler delegate is called.