Displaying totals in the ListView LayoutTemplate
Question
I'm using the ListView control (ASP.NET 2008) to show a bunch of lines of data, and at the bottom I want some totals. I was initially going to define the header and footer in the LayoutTemplate and get the totals with some local function, i.e. <%#GetTheSum()%>, but it appears that the LayoutTemplate does not process the <%#...%> syntax.
Another thought would be to put a Label in the LayoutTemplate and use FindControl to update it. Not sure if that's possible (will try shortly).
What's the best way to show totals using a ListView?
UPDATE: Solution here.
Solution
It turns out that FindControl does work:
CType(MyListView.FindControl("litTotal"), Literal).Text = GetTheSum()
I'd still like to know if there might be a better way though.
OTHER TIPS
Use a literal and set the variable in the code-behind.
<asp:Literal ID="litTotal" runat="server" />
code-behind:
litTotal.Text = GetTheSum();
You can't reference the control in the code-behind because it's in the LayoutTemplate. Maybe with FindControl, but I haven't tried that yet.