How to display image inside web form from Byte Array with C#

Question

This is my code, all it does is clear the web page and draw the image, so the rest of the form disappears! I need to show the image inside the form.

This is my User

Answer 1

Response.Clear(); is deleting all the buffered content (i.e. everything in your page).

Instead of a user control to display a dynamic image, consider an HTTP handler (.ashx), like this:

ImageHandler.ashx:

public class ImageHandler : System.Web.IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
        // Logic to get byte array here
        byte[] buffer = WhateverLogicNeeded;
        context.Response.ContentType = "image/jpeg";
        context.Response.OutputStream.Write(buffer, 0, buffer.Length);
    }

    public bool IsReusable
    {
        get { return false; }
    }
}

Then in your .aspx page:

Note: If you want a specific image, then you can pass a query string (i.e. image ID) to the handler and have the byte array logic account for using the query string value.