Editing in a Gridview - Demo
<%@ Page Language="VB" MaintainScrollPositionOnPostback="true" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Edit GridView</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView
id="grdMovies"
DataSourceID="srcMovies"
DataKeyNames="Id"
AutoGenerateEditButton="true"
AutoGenerateDeleteButton="true"
Runat="server" />
<asp:SqlDataSource
id="srcMovies"
ConnectionString="<%$ ConnectionStrings:MyDatabase %>"
SelectCommand="SELECT Id,Title,Director FROM Movies"
UpdateCommand="UPDATE Movies SET Title=@Title, Director=@Director
WHERE Id=@Id"
DeleteCommand="DELETE Movies WHERE Id=@Id"
Runat="server" />
</div>
</form>
</body>
</html>