I am having grid view with page size 20 and my data is sorting whole grid view record
but i want the record should sort by page wise
for e.g if page 1 contains a,b,c,d records and page 2 contains e,f,g,h
than while sorting of page 2 only record should sort e,f,g,h and should not sort the record of 1st page a,b,c,d