Page Sets; Grids; Adding a 'Drilldown' column may cause unhandled exception

Adding a Drilldown type column to a grid in a Page Set may cause an unhandled exception.

An exception would occur if the column Key was not "Drilldown".

When adding a Drilldown column, the Key will now be automatically prefixed with the text "Drilldown_" if it is not "Drilldown".

When adding a Drilldown column, an Icon can now be specified. This must be a valid Icon Resource Id.

The following sample will add a Drilldown Column displaying the "Client" icon. This column's Key will be "Drilldown_Client" even though only "Client" is specified:

gridTest.Columns.AddDrilldown("Client", , , "Client")