Hi,

    I use a ViewModel as a source for my datagrid. One property is an observablecollection<string>. What happens is the observable column appears as a "+" sign to the left of every row and when i click on the "+" sign it shows me the columns whose types were observable. 

   Is it not possible to display them in a cell and not when the user clicks on the + sign? Also, when i select the column (observable) and when I try to get the currently selected record it throws a null but gets me the correct row when I click on the columns not of type observable. See code below.

   Please not that I have few observable columns which needs to be edited and few non editable.

void XamDgScheduledAudit_RecordActivated(object sender, Infragistics.Windows.DataPresenter.Events.RecordActivatedEventArgs e)

        {

            var dr = e.Record.DataPresenter.ActiveRecord as DataRecord;            

            var recVal = dr.DataItem as ScheduleAuditInfoViewModel; 

        }

Thanks,
Ranjith