Thank you for you response.
I am sorry for that couldnt explain my setup enougly. )
Here is the second try.
I have a GridView with CheckBox TemplateField.
When user checkbox checking, CheckBoxCheckedChanged event firing some events and adding clicked row to another
GridView. When unchecking events removing involved row from second GridView and unchecking primary gridview row.
But i hade some changes in this codes. Added CheckBox templatefield like primary GridView to secondaryGW and when user checking row in second GridView, events removing this rows and uchecking involved row in primary GridView.
Codes basicly working like in this link
before my changes.(data binding with sql data source in aspx page. not in page load)
By the way radSliders (range sliders) filtering This Primary GridView results like in this example http://demos.telerik.com/aspnet-ajax/slider/examples/rangeslider/defaultcs.aspx
I combined this 2 scripts and in new combined scripts when i checking rows in Primary GW everything working fine but when also sliding sliders for filtering GW clearing checked rows. How can i persist this checked rows also when sliding with sliders.
Thank you for your time and Thanks in advance.
edit : i solved my problem with this video.