Saving variables in ASP.NET page

Question

I'm trying to convert a game I made (WindowsFormApplication) to an ASP.NET page.

My Problem is that I have a lot "private" variables in my WindowFormApplication and those variables are important for the game. But when after I Declare all my variables (in my Page_Load), they turn null no matter what I do(click a button, refresh the page).

Is there anyway to save my variables between buttons (other than Session, because I'd have to create like 6 more sessions)

Can you post your code (a representative example)?

Oded
– Oded

2010-12-25 14:45:47 +00:00
Commented Dec 25, 2010 at 14:45 — Oded
– Oded, Commented Dec 25, 2010 at 14:45

Xavier Poinas · Accepted Answer · 2010-12-25 15:07:53Z

5

You will need to save your variables in the ViewState object:

ViewState["MyValue"] = 3;
...
int myValue = (int)ViewState["MyValue"];

If you already have a property then you can just use the ViewState to hold the value, such as:

private int MyValue
{
    set { ViewState["MyValue"] = value; }
    get { return (int)ViewState["MyValue"]; }
}

If your value needs to be available in the whole application (but specific to the current user), you can use Session instead of ViewState.

If you are worried about people messing with the ViewState then here are two options:

edited Dec 25, 2010 at 15:07

answered Dec 25, 2010 at 14:43

Xavier Poinas

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3 Comments

Stilgar Over a year ago

It is worth noting that if the variables are saved in the ViewState the user can change the values and eventually cheat.

Xavier Poinas Over a year ago

By the way, you can still store it in the Session as well. If you have 6 variables it just means storing 6 variables in 1 session, not creating 6 different sessions.

Or Betzalel Over a year ago

Yea thats what I meant 6 variables in 1 session ofcourse. The private int MyValue{get ...;set...;) was perfect, exacly what I needed! (I used Session Eventually)

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