I'm trying to use the RadGridView AggregateFunctions. I've tested Count, Min and Max functions successfully. However, when I try using SumFunction or AverageFunction, nothing is displayed on the column footer (including the previously added Count, Min, Max functions).
I'm binding a DataTable to the grid from C# like this:
This is the XAML for the GridView:
DataType for InvestmentCost column in dtData is Decimal.
I'm using RadControls for WPF Q3 2009 SP1