how to update gridview based on dropdownlist item
<p>I am creating a web page that contains one Dropdownlist and Gridview. </p>

<p>Query is Dropdownlist will contains SQL Server database table list. When I select a table name from dropdownlist the Gridview needs to show entire table data and able to perform <code>edit, update, delete, cancel</code> actions.</p>

<p>When I click <code>edit</code>, Gridview need to show <code>Update</code> and <code>Cancel</code> buttons and it update should update dropdownlist table and also delete.</p>

<p>Please any one can help.</p>

<p>Thanks in advance. </p>
