Question

I want to store some images in app_data folder, I know its a secure folder
but I don’t know how I can access this Image file from HTML (no Image appears)

are there any suggestion, or how I can store my image in a secure place that not accessible from external user

Answer 1

The following should get you started.

namespace Moo.Core.Handlers
{
    public class Thumbnail : IHttpHandler
    {
        public bool IsReusable
        {
            get { return false; }
        }

        public void ProcessRequest(HttpContext context)
        {
            String FileName = Path.GetFileName(context.Request.PhysicalPath).Replace(".th", "");
            String AssetName = HttpContext.Current.Request.MapPath(Path.Combine(HttpContext.Current.Request.ApplicationPath, "UserData/Images/" + FileName));

            if (File.Exists(AssetName))
            {
                context.Response.ContentType = ImageManipulation.TypeOf(AssetName).MimeType;
                context.Response.BinaryWrite(File.ReadAllBytes(AssetName));
                context.Response.End();
            }
        }
    }
}