how to initialize a progress bar in website ?

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Hi all,
I am making some functionality in which user waits for the file to get download from the data base. Meantime when the data is mined I want him to see the progress in progress bar. I have seen many examples but they are all on windows application not on websites using c#. Moreover I have done some coding but wht is this INITIALIZE COMPONENT() used with progress bar ?
How can i achieve my task up and running ?
Here is some coding I have done... Kindly look at it and lemme know where I am geting wrong all the way ?

ProgressBar pbar = new ProgressBar();
    BackgroundWorker bw = new BackgroundWorker();
 pbar.Minimum = 0;
        pbar.Maximum = 100;
        bw.DoWork += new DoWorkEventHandler(worker_DoWork);
        bw.ProgressChanged += new   ProgressChangedEventHandler(worker_ProgressChanged);
        
        pbar.Value = pbar.Minimum;
        bw.RunWorkerAsync();

  void worker_DoWork(object sender, DoWorkEventArgs e)
    {
        for (int i = 1000; i >= 0; i--)
        {
            Thread.Sleep(50);
            int percent = (1000 - i) / 10;
            bw.ReportProgress(percent);
        }
    }

    void worker_ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        System.Web.UI.WebControls.Label label1 = new System.Web.UI.WebControls.Label();
        pbar.Value = e.ProgressPercentage;
        label1.Text = e.ProgressPercentage + "%";
    }

Posted 4-Jun-12 2:23am

Taresh Uppal

Updated 4-Jun-12 2:25am

Prasad_Kulkarni

v2

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Ruard · Answer 1 · 2012-06-04T05:41:00

The code you have found is not going to work.

There is a big difference between windows applications and websites. Most important is that a website is client-server based and uses html for communication. The client sends a request to the server and the server sends a response. There is no other communication until another request is sent from the client.

With html only you cannot achieve this, you will need ajax[^] to send asynchronous requests from the client to get the status of the download and update the screen. There are also flash progress bars, but I wouldn't recommend those.

Take a look at this article to get started: http://csharptechies.blogspot.nl/2010/09/displaying-jquery-progressbar-with-ajax.html[^]