Unique way to identify page instance within HttpContext

Question

You can get the name of a page within HttpContext via Request.Path.

Is there a way to distinguish between different requests from the same page?

That is when two different instances of yourpage.aspx make a request, how can you distinguish between the two using HttpContext?

Answer 1

you probably want to do this in a base Page class, but here's what i would do

public partial class Default : System.Web.UI.Page
{
    private Guid _instanceID;

    public Guid InstanceID
    {
        get { return _instanceID; }
    }

    /// <summary>
    /// Constructor
    /// </summary>
    public Default()
    {
        this._instanceID = Guid.NewGuid();
    }
}

then using the HttpContext somewhere else in your code...

        if (HttpContext.Current.CurrentHandler is Default)
        {
            ((Default)HttpContext.Current.CurrentHandler).InstanceID;
        }