Assigning dynamic bitmap to asp.net image control

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?

Thanks

Dave Hunt

Answer 1

User-1372641848 posted

NO its not possible.

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

Answer 2

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.

Answer 3

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?"

Answer 4

User-1377142270 posted

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

Answer 5

User-2103477710 posted

You can do this using a DynamicImageControl.

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