I am currently working on grids with a server side pager system.
Recently I wanted to add multiple line selection but with the server side pager I can't get a correct behavior.
My SelectedItems variable which contains the list of selected items keeps the selected items despite the change of page but on the other hand when I come back to a page with selected items, the checkboxes are not checked.
In addition I can reselect them which adds them several times in my list.
Do you have an example of a server-side paging system with multiple line selection?