Sigma grid sorting problem

[Kunjesh]

Hi All,

     I am using sigma grid (paid version). When i perform sorting on grid, it will apply sorting on group by for example: I have 5 fields in my grid (Name, Address, Phone No, Mobile No, Email Id), i am fetching data from database i have put group by function on Name field, when i perform sorting on Address field, first grid will grouped Name field than after perform sorting on Address field, but i want that, whenever user performed sorting on any field it will not be consider any group by functionality on any field.