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NET 2.0 introduced a number of new Web controls designed for accessing and modifying data. NET 2.0's data source controls make it possible to retrieve, insert, update, and delete data without having to write the tedious dedata access code that was so commonplace in ASP. Previous installments of this article series have looked at returning, inserting, and deleting data using the Sql Data Source control. These controls can work in unison with the data source controls to facilitate inserting, updating, and deleting data.
Previous installments in this article series have covered these steps in detail.
The screenshot below shows the Grid View when one of its record's Edit buttons has been clicked.
There has been a postback and the selected row is now editable. On postback, the Grid View takes the values from the input controls in its editing interface and automatcially populates those into the corresponding Update Parameters.
The Edit button disappears and in its place Update and Cancel buttons appear.
Furthermore, the columns in the Grid View become editable, too.