title: Masterpage not recognising Checklist in Content (child) page
body: <p>Apologies as this has most likely been asked and answered but I can't seem to find the right search term!</p>
  
  <p>I have a master page (master.vb) which should see the checklist on button press but instead can not see it. I've looked as ctl001 etc.. </p>
  
  <p>Issue: Compiler Error Message: BC30451: 'MainContent_CheckBoxList1' is not declared. It may be inaccessible due to its protection level.</p>
  
  <p>contentpage.aspx</p>
  
  <pre><code>&lt;asp:CheckBoxList ID="CheckBoxList1" runat="server"&gt;
  &lt;/asp:CheckBoxList&gt;
  </code></pre>
  
  <p>Master Page</p>
  
  <pre><code>For Each item As ListItem In CheckBoxList1.Items
              If item.Selected Then
                  i += 1
              End If
          Next
  </code></pre>
  
  <p>The issue is with "CheckBoxList1.Items" not being recognised. I've not quite sure where to go now. The code checks if one Checkbox or more has been ticked.</p>
  
  <p>I know the pages are linked correctly as it displays correctly if I remove the checklist reference in the MasterPage.  </p>