3
Answers

popup control extender

Anupama Singh

Anupama Singh

15y
13.2k
1
hi,
I've used popup control extender for showing data on mouseover of gridview cell but when gridview bind it shows following error

Microsoft JScript runtime error: Sys.ArgumentException: Value must not be null for Controls and Behaviors.
Parameter name: element

any help!
Answers (3)