Update image in ASP.NET page from memory without refreshing the page.

Posted by ZeeMan on Stack Overflow See other posts from Stack Overflow or by ZeeMan
Published on 2010-04-03T14:50:47Z Indexed on 2010/04/03 14:53 UTC
Read the original article Hit count: 315

Filed under:
|
|
|
|

I have a command line C# server and an ASP.NET client, they both communicate via .NET Remoting. The server is sending the client still images grabbed from a webcam at say 2 frames a second. I can pass the images down to the client via a remote method call and the image ends up in this client method:

    public void Update(System.Drawing.Image currentFrame)
    {
        // I need to display the currentFrame on my page.
    }
  1. How do i display the image on the a page without saving the image to the hard disc? If it was a winForms app i could pass currentFrame to a picturebox ie. picturebox.Image = currentFrame.

  2. The above Update method gets fired at least 2 times a second. If the client was a winForms app i could simply put picturebox.Image = currentFrame and the current frame on the screen would automatically get updated. How do i achieve the same effect with ASP.NET? Will the whole page need to be reloaded etc?

© Stack Overflow or respective owner

Related posts about ASP.NET

Related posts about c#