Setting Website global variables on the fly

Hi - I have had a look and I'm not sure I understand how that relates to this?

From what I can gather I can build a class that extends HTTPHandler or IHTTPHandler.
Then I add a reference to this in my web.config.

What I don't know is how do you set and get request variables using this class.
Also, I'm not a fan of having to set things up in IIS either - my goal here is to create a portable application that can configure itself based on the server its located on. I do not want to reconfigure files like the web.config every time i move the application to a new machine.

Thanks,

HI

your should write YourHttpHandler : IHttphandler class
then , it has a method ProcessRequest(System.Web.HttpContext ctx),
Now you got the http context as a parameter (ctx)
and you get the Request by :

HttpRequest req = ctx.Request;

now if you have a variable named MyVar in your request

string val = req["MyVar "]

will give you its value.

This is the standard MS way to change request on-the-fly

That's great... but will I be able to access those request variables anywhere in my application by simply typing string

myVar = req["myVar"];

Or will I have to extend that class everytime I want access to the request scope / object??

In Coldfusion, you could simply set a request variable value before the request began, then anywhere in your application you could simply access "request.myVar.

Will that code snippet above allow this??

HI
The request object is available to each page , you can access it in the Page Load of each page (in the code behind for your aspx file) like that

 protected void Page_Load(object sender, EventArgs e)
        {

            string MyVar = Request["MyVar "]
         }

Hi again

This works well, except when I actually try and set request variables. The system errors me stating that I can not set a value as it is read-only.

Can you actually set your own custom request variables, because this is what I actually need??

Thanks

 HttpRequest req = ctx.Request;
 req["siteAuthor"] = "Mr Magoo";

                                              

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Yes, you can only access the value in the Page_Load event , but, as I said , you can write your HttpHandler class that implements IHttpHandler and there, in the ProcessRequest(System.Web.HttpContext ctx) , you can change the request , add variables , etc.

I understand - the code I included above is in the ProcessRequest method of my handler. It still does not allow me to do something like:

req["siteAuthor"] = "Mr Magoo";

How else would I set variables which I could access globally via the request scope?

public class MyHttpHandler : IHttpHandler
{
	public MyHttpHandler() 
	{
		//
		// TODO: Add constructor logic here
		//
	}
 
    public void ProcessRequest(System.Web.HttpContext ctx)
    {
        HttpRequest req = ctx.Request;
        req["siteAuthor"] = "Mr Magoo";
       
        
    }
 
    public bool IsReusable { get { return true; } }
 
}

                                              

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HI

Sorry for the misunderstanding...
You should use Session variables (which are actually global variables) , set them in your Httphandler according to your request and ask for the value in the page code behind :

//Assign a value to the myvariable session variable.

Session["myvariable"] = "somevalue";
 
//Retrieve the value of the myvariable session variable.
string myString;
if (Session["myvariable"] != null)
  myString = (string)Session["myvariable"];

                                              

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Are you sure that is the right way to do it? Don't session variables take up more memory?
Does this mean that there is no way of setting Request scope variables?

No, I'm not sure , but it is the only way I know.