Question

I have list<class> for showing data in repeater control using drag and drop.

list.add(new class{id=0, name ="item1"});
list.add(new class{id=1, name ="item2"});
list.add(new class{id=2, name ="item3"});
list.add(new class{id=3, name ="item4"});

and on page load i showed this data in Repeater…

now i want to remove one “item2” from list and show agian on repeater,

it also remain same when i am doing refresh my page

how could i do this?

Answer 1

Change getDate as Follow…

 public static List<DragAndDropData> getdata()
 {
         List<DragAndDropData> LeftSideList=new List<DragAndDropData>();
         if(Session["leftside"]!=null)
         {
           LeftSideList=(List<DragAndDropData>)Session["leftside"];
         }
         else
         {
           LeftSideList.Add(new DragAndDropData { Id = 0, Name = "Item1" });
           LeftSideList.Add(new DragAndDropData { Id = 1, Name = "Item2" });
           LeftSideList.Add(new DragAndDropData { Id = 2, Name = "Item3" });
           LeftSideList.Add(new DragAndDropData { Id = 3, Name = "Item4" });
           LeftSideList.Add(new DragAndDropData { Id = 4, Name = "Item5" });

    }
         return LeftSideList;
 }