I have set the column style to dropdowncalender.
By default it shows "//".
I want to set it to blank. I tried setting the default value to Nothing and "" but the result is the same.
Shouldn't it be DateTime? I doubt if the grid could handle this alone. If you set the DataType to DateTime then you get the style as dropdown calendar automatically.
It is string
What is the DataType of the column?
setting Nulltext to string.empty the result is same.
Try to set the Nulltext to string.Empty