GroupingGrid: Filter to show only records with a null field

[Roberto Obispo]

Hi!

Is there a way to create a filter to see only those records with a null field? I''ve tried creating a RecordFilterDescriptor with a expression like " ([ColName] = '''''''')=1", as you suggested in other post, but I can''t make it work.

Thank you very much

[Administrator]

Using single quotes along with = or <> seems to work for me in this sample. Are you doing something different?

http://www.syncfusion.com/Support/user/uploads/GGC_Filter_65850ff6.zip