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Need help with asp expression syntax for template

Posted By:      Posted Date: October 22, 2010    Points: 0   Category :ASP.Net

I have a gridview with 3 columns, Amount Allocated, Amount Spent, and Amount remaining.  The amount remaining is calculated in VB code.  The footers give the totals. 

For the footer for Amount Remaining, I want to calculate it off the footer values in the first 2 columns.  Below is my markup.  Can you tell me what I should put in for parameters for my CalcRemaining function, so that it passes the values contained in the footers of the other 2 columns?  See below, the part enclosed in ***.   I want to pass the values that are in the LabelTotalTotalSpent and LabelTotalAmountAllocated cells.

Thank you!



<asp:TemplateField HeaderText="Total Spent" SortExpression="TotalSpent">


      <asp:Label ID="LabelTotalTotalSpent" runat="server" Font-Bold="True">        <%#GetTotalSpent()%></asp:Label>



      <asp:Label ID="Label2" runat="server" >


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