title: Error when using Update Panel with gridview...?
body: <p>Error when using Update Panel with gridview:. "Element 'BoundField' is not a known element This can Occur if there is a compilation error in the Web site, or the web.config file is missing." why this error? and how to solve?</p>
  
  <p>Markup:</p>
  
  <pre><code>&lt;asp:ScriptManager ID="ScriptManager2" runat="server"&gt;&lt;/asp:ScriptManager&gt;
  &lt;asp:UpdatePanel ID="UpdatePanel1" runat="server"&gt;
      &lt;asp:GridView ID="GridView1" CssClass="GridGis" runat="server" 
          AutoGenerateColumns="False" PageSize="5" OnPageIndexChanging="GridView1_PageIndexChanging" 
          AllowPaging="True"&gt;
          &lt;columns&gt; 
              &lt;asp:BoundField DataField="nome" HeaderText="Nome" /&gt; 
          &lt;/columns&gt;
      &lt;/asp:GridView&gt;
  &lt;/asp:UpdatePanel&gt;
  </code></pre>