Web Forms :: Excel Export - Controls Collection Cannot Be Modified Because Control Contains Code Blocks

Jan 24, 2012

The code on one of my aspx pages is giving me this error:

I'm getting this on the code behind for export to excel on one of my pages.

The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).It is referring to this line Me.GridView1.Parent.Controls.Add(frm)

I have this code in the aspx page.  I am using two gridviews.  I need to have this on the page any way I can fix the code so I can use that export to excel you created?

  <% If(Session("PendingClaims"))%>then display gridview1<%Else%>

Then display gridview2<% End If %>

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