Question

Is there any convention for naming session variables in ASP.NET?

Options that come to my mind:

Session["myValue"] = "value";
Session["MyValue"] = "value";
Session["my_value"] = "value";
Session["MY_VALUE"] = "value";

Answer 1

IMO, it is important to apply the DRY principle:

public class SessionVariables
{
    public const string MyStoredSessionVariable = "MyStoredSessionVariable";
    ...
}

and then:

Session[SessionVariables.MyStoredSessionVariable] = ...

I don’t think it matters much which string literal you use, as long as it is unique enough and you do it in a consistent way, like others have mentioned.