Assigning dynamic bitmap to asp.net image control RRS feed

  • Question

  • User1112880609 posted

    Hi folks. Thanks in advance for your input.

    This feels like a dumb question where I think I've figured out the hard part, but can't figure out the easy part.

    When my page loads, I dynamically create a bitmap (a graph) based on some input pulled from a database. I want to display this bitmap on my page (which contains a bunch of statistics and things like that).

    I can get the bitmap to display by using the following code (where bmp is the bitmap object):

                      Page.Response.ContentType = "image/jpeg"

                      bmp.Save(Page.Response.OutputStream, ImageFormat.Gif)

    However, this just displays the bitmap on a blank page.

    What I really want to do is assign the bitmap to an image control directly (which is sitting nicely in a table with various other labels and data). I really don't want to have to save the bitmap to a file, then assign that file to the imgControl.imageURL, then load that file.

    Is there a way to directly assign a bitmap to an image control?


    Dave Hunt

    Wednesday, January 25, 2006 3:52 PM

All replies

  • User-1372641848 posted

    NO its not possible.

    Check this post http://forums.asp.net/1168189/ShowPost.aspx#1168189

    Thursday, January 26, 2006 8:23 AM
  • User-413053108 posted
    Actually, you can:

    Let's assume image.aspx has the code to display the image (the way you did it).

    Then on you display page:

        protected void Page_Load(object sender, EventArgs e)
            Image1.ImageUrl = "image.aspx";

    This way, the Image1 control will load the page as an image. You can even pass parameters to the file to draw the image differently.
    Thursday, February 9, 2006 1:40 PM
  • User-1372641848 posted

    User is asking if he can assign bitmap directly to image his question is.

    "Is there a way to directly assign a bitmap to an image control?"

    Friday, February 10, 2006 7:56 AM
  • User-1377142270 posted

    Cheers I've been looking for code to do that for ages.  The hardest things are always simple :)

    Monday, March 13, 2006 10:29 AM
  • User-2103477710 posted

    You can do this using a DynamicImageControl.

    See http://msdn.microsoft.com/msdnmag/issues/04/04/CuttingEdge/ for more information.

    Tuesday, March 21, 2006 11:44 AM