how to assign custom page size in gridview

Hello Sir,

I need to assign the page size of gridview at client side. suppose like if iam having dropdown in gridview and with items as 5 ,10 ,15 and when i select 15 then 15 rows should be selected and displayed 

at same time if i go to check next page in gridview then next 15 rows should be displayed 

can u send me any example application please.

Thankz aloti

irfan---abdulirfanm@hotmail.com