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JavaScript runtime error: Sys.ArgumentException: Value must not be null for Controls and Behaviors.
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I am getting following error 'JavaScript runtime error: Sys.ArgumentException: Value must not be null for Controls and Behaviors. Parameter name: element' When I click to expand a row of hierarchical grid. I have added 4 keys in 'DataKeyFields' attribute of Infragetics grid when I remove one of them. Its is working without any error. But As per my requirement I need to add more than 4 keys in DataKeyFields of Hierarchical Grid. So I wanted to know : 1. Is there any restriction on no of fields in DataKeyFields for Hierarchical Grid. Please help me to resolve above error. Thanks in Advance.