I have several ultraComboBoxes that I bind to dataviews. I tried clearing the combobox by ucbWarehouse.Datasource = Nothing. This only clears the grid dropdown but not the text. When I do ucbWarehouse.Text = "" I get an error.

I tried setting Value = 0 but the text will also show 0. 

My workaround for now is

 try

    ucbWarehouse.Text = ""

catch

    'do nothing

end try

How do I properly clear the combobox?  

 Any reply is much appreciated.