Hello Abhijeet,

If you are still experiencing this issue and are using .NET 4.0 then it is likely because you are somehow not setting up the grid properly. I am attaching a sample that demonstrates how to properly setup the grid. To go further with this matter you are going to have to send an isolated sample that reproduces the issue you are seeing.

Thanks mike, Please have look into it, I think its challenging query for INFRAGISTIC development team.

Hello Abhijeet,

Thank you for the update. I see that those forum threads are already being handled by other team members. I will discussed those threads with them.

Hello Mike,

If you are there please have lookin to it- 

http://es.infragistics.com/community/forums/p/104514/494365.aspx#494365

http://es.infragistics.com/community/forums/t/104512.aspx

Hello Abhijeet,

Thank you for the update. If you have new queries I recommend you create separate forum threads or cases to keep it clear what each one is about.