Not ready solution for this.

Maybe you will need to save the response in local variable (loadComplete can be used for this purpose) and the build your own content from this using subGridRowExpanded event

Regards

Tony

What id like to accomplish is for the subgrid to display records nested within the current record. Example (ill use json) of Orders containing LineItems where 'main grid' contains the OrderId, & Date and subgrid contains LineItems detail of its Order:

"rows":

{"OrderId":1,"Date":"01-01-2010″,"LineItems":[

   {"ItemId":123,"ItemName":"Stuff1","QTY":3},

   {"ItemId":456,"ItemName":"Stuff2","QTY":2},

   {"ItemId":789,"ItemName":"Stuff3","QTY":1}]},

{"OrderId":2,"Date":"01-10-2010″,"LineItems":[

   {"ItemId":789,"ItemName":"Stuff3","QTY":2},

   {"ItemId":123,"ItemName":"Stuff1","QTY":1},

   {"ItemId":456,"ItemName":"Stuff2","QTY":3}]}