I have made a RadDataForm "Invoice".
In the "Edit Template" i added a RadGridView "InvoiceDetails", this grid has following columns:
Description, Price, Quantity, Total
The Total column is an Expression Column: Total = Price * Quantity.
Using following code executed in the grid loaded event:
I placed the grid inside a DataFormDataField. When i run the code and open an invoice, the code takes a long time to execute and then returns a generic error message:
An unhandled exception ('Unhandled Error in Silverlight Application
Message: System.ArgumentNullException: [ArgumentNull_Generic]
When i place the grid outside the dataform, the code works perfectly.
Has anyone tried this and found a solution or is this a bug in the RadGridView/RadDataForm combination?