c# - Retrieve Specific Data from Session List -

i stored list in session. able username list accessing userinfo[1]. after stored in session, unable session["userinfo"][1].

it gave me error

"cannot apply indexing [] expression of type object.

any idea/hints me this?

list<string> userinfo = new list<string>(); userinfo.add(userid); userinfo.add(username); userinfo.add(role); session[userinfo"] = userinfo; 

you need cast list first because default session return type object, this:

var theuserinfo = session["userinfo"] list<string>;  // checking if indeed list of string if(theuserinfo != null) {    // here list.. } 

or can implicitly cast this:

userinfo = (list<string>) session["userinfo"] 

as additional notes, if explicitly cast object, there's chance can invalid cast exception. so, recommend use "classic" approach use as syntax, because return null rather throw exception.