Error Message: The name 'xxx' does not exist in the current context

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ASP.NET

server

Hi,

I have called a Function GetPhotos() from Designer Page (source). Getphotos() is in Code-behind Page.

It runs well when I build the application but when I publish the same application using "fixedName and single page Assemblies" option Enable, it returns an error.

Compiler Error Message: CS0103: The name 'GetPhotos' does not exist in the current context.

What should I do?

Code in Design page :

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">


<asp:Panel ID="pn1" runat="server" GroupingText="Facility's">

<table width="100%">
<tr>
  <td style="text-align: removed">
     <asp:Label ID="Label2" runat="server" Height="100%" 
          style="font-size: 21pt; font-weight: 700; color: #996633" Width="100%">     
  </td>
</tr>
<tr><td style="text-align: removed"><asp:Label ID="Label3" runat="server" 
        style="text-align: justify"></td></tr>
<tr>
  <td>
    <asp:GridView ID="GridView1" runat="server" AllowPaging="True" 
        BackColor="White" BorderColor="#336666" BorderStyle="Double" BorderWidth="3px" 
        CellPadding="4" PageSize="15" Width="100%" 
          onselectedindexchanged="GridView1_SelectedIndexChanged">
        <rowstyle backcolor="White" forecolor="#333333" />
        <footerstyle backcolor="White" forecolor="#333333" />
        <pagerstyle backcolor="#336666" forecolor="White" horizontalalign="Center" />
        <SelectedRowStyle BackColor="#339966" Font-Bold="True" ForeColor="White" />
        <HeaderStyle BackColor="#336666" Font-Bold="True" ForeColor="White" />
    
  <% 
      GetPhotos(Label2.Text);      
    %>
  </td>
</tr>
</table>

Thanks in advance.