ListGrid.sort return value

[smartDev1]

smartGwt 3.1
Browser: IE, chorme

Hi

I am facing some issue while sorting the data in ListGrid. I am using ListGrid.sort(String sortField, SortDirection sortDirection) function which return Boolean.

This function returns NULL or TRUE "un-predictably" even though the parameters passed are same and on the same grid. Can you help me understand the scenarios where this function can return NULL..

[smartDev1]

Please reply

I need to complete my project. Please give pointers for return value of sort function in ListGrid