I can see the column bands in designer mode, but when I run the application the child bands are empty. Additionally, though probably not related, the expand graphic and processing graphic are missing.
Abhijeet,
Please create a new thread that has details about how you are using the grid and exactly what isn't working so that we can assist you. Make sure that you include all of the following:
Let me know if you have any questions with this matter.
Same problem happen with me child bands are not getting displayed
Both problems were resolved by importing the stylenames and letting them overwrite the existing ones.