Display image from database in ASP.net with C#

Question

I know this kind of question has been asked many times. Yet I don\'t succeed in displaying an image from my db on a page.

I tried the following method.

Answer 1

try using a handler file (.ashx) put the code form your page_load in that lie so

public void ProcessRequest (HttpContext context) {
    //Get the picture id by url
        //Query here
        byte[] picture = queryoutput;
        Response.ContentType = "images/jpeg";
        Response.BinaryWrite(picture);
    }

    public bool IsReusable {
    get {
        return false;
    }
    }

then call the handler file and pass the correct querystring items from the

this should then work

Answer 2

There's an error in your path reference...

ImageUrl="/~givememypicture.aspx?pic=3"

should be:

ImageUrl="~/givememypicture.aspx?pic=3"

~ is shorthand for "the application root" and needs to be followed by a slash to indicate that it's a directory. Think of it as similar to other path shorthand notations such as . and ...

Answer 3

I do this all the time. Here's some sample code:

Response.ContentType = "image/jpeg"; Response.BinaryWrite(bytes);

That's all there is too it. If it's not working, then something is probably wrong with your data.

A flush is not required. I have working code for this open on my screen right now.

I would suggest that you try writing that buffer of data to a file and see if it opens up as a valid picture. I bet something's wrong with that data.

Also, it's a good idea to enable browser side caching for your dynamic content. Here's a GREAT link that shows exactly how to do that, which will boost your performance / scalability a lot.

http://edn.embarcadero.com/article/38123

Answer 4

Make sure you call Response.Flush(); and also Response.End(); and see if that does the trick

Also, your content type has a misspelling. Is not "images/jpgeg" I think it's "image/jpeg"

EDIT: Yes, I just confirmed in Wikipedia that the correct content-type is image/jpeg.