compile time error in asp.net
<p>Am running asp.net application.I try to build sample site using gridview.I got compilation error as below,</p>

<pre><code>CS1061: 'ASP.gridedit_aspx' does not contain a definition for 'GridView1_RowUpdated' and no extension method 'GridView1_RowUpdated' accepting a first argument of type 'ASP.gridedit_aspx' could be found (are you missing a using directive or an assembly reference?)

Line 13:         &lt;asp:GridView ID="GridView1" runat="server" DataKeyNames="ID" 
Line 14:               AutoGenerateColumns="False" 
Line 15:               DataSourceID="SqlDataSource1" 
</code></pre>
