.net progress bar in a asp.net we application

Question

Is it possible to have a .net progress bar in a asp.net web application.

I tried doing this:

    ProgressBar pb = new ProgressBar();
    pb.Name = "pb";
    pb.Value = 30;

    pb.MarqueeAnimationSpeed = 30;

    pb.Location = new System.Drawing.Point(20, 20);

    pb.Width = 200;
    pb.Height = 30;
    Controls.Add(pb);

but this :

Controls.Add(pb);

Doesnt work,

Any idea how to do this? or something the same?

Thanks

Answer 1

no this is not possible - ASP.NET pages are just rendered HTML that gets send to the client (web-browser). The progress-bar is a client-side control.

If you need something like this on the client you may to use Javascript/JQuery/AJAX or something similar.

Here is a version for JQuery And here is a nice article on this with AJAX

Answer 2

您无法在网络上使用此控件。

Answer 3

To make it work you need to write an algorithm(maybe using an async call) to update the progress bar.it won't work if you use the classic request/response because you would not have the chance to update your progress bar. you need a way to read a kind of value at regular interval to update the progress bar and give the perception to the users that something is happening. If you want to go for a "fake" one you could use the one showed at the link below:

http://jqueryui.com/demos/progressbar/