autopostback and the back button

Question

hi all, i was wondering for somebody could help me out...so i'm using a dropdownlist, checkboxlist, with autopostback = true...i'm populating the boxlist with data against a ms sql server...the problem i'm having is that when i select a new item in the dropdown or checkbox, it post a new page with the updated changes to the dropdown/checkbox...so when i click the "back button" on the browser it would simply take me back to the previous dropdown item and not the previous page...so i do i get around this problem...if anybody can give me some suggestions, it will definitely make my day...thanks

Answer 1

Try to give Session value before insert like below.

try
{
Session["Vechilevalue"]=DropDownList1.SelectedValue;
if(Session["Vechilevalue"]!=null&&!n.tbl_Vec.Any(x=>x.Vec_ID==Vec_ID))
{

v.Vec_ID=Vec_ID;
{
v.Vec_ID=DropDownList1.SelectedValue;
}

n.tbl_Vec.Add(v).ToString();
n.SaveChanges();

}
else
{


}

}
catch
{
}