Infragistics Forums

I'm trying to use the CalcManager to sum a column and put the value in a UltraLabel.  The formula I create in the formula builder is "sum( [//gridAssurances/Assurances/Amount] )" so I'm pretty sure the formula is correct.  In fact, when I first open the form (before populating the grid with data), the formula calculates "0", which is correct since there are no rows.  After populating the grid, I get the "Invalid or unavailable reference" error.  I have looked at the sample and I can't see anything different other than the sample uses an UltraDataSource and I am binding to a "BindingSource" which uses a business object as it's DataSource.  Can anyone help with this?

Nevermind.  I have it working now.  It seems I had the grid binding to the bindingSource where the datasource and datamember were both defined set. I got it to work by defining only the datasource of the bindingSource.