I have the followig RadGrid
When a user wants to add a new row, he has to select a name ("Nombre") and a connection ("Conexion") from a window that pops up and assigns the selected connection to the selected cell. I can validate the name using the built-in validator for BoundColumns, however, I haven't found a way to validate the Eval("NombreConexion") that is on the ItemTemplate of the GridTemplateColumn so that it is not an empty value (some users forget to assign a connection).
Is there any way of doing this? I can't use a FieldValidator because the Eval field is not a control and if I try to transform it into a radlabel I just get errors.