Caching http handler .ashx output

Question

Im creating an image which has some text in it, for every customer, the image contains their name and I use the Graphics.DrawString function to create this on the fly, however I

Answer 1

David,

you can use output caching on handler. not declaratively but in code behind. see if you can use following snippet.

TimeSpan refresh = new TimeSpan(0, 0, 15);
HttpContext.Current.Response.Cache.SetExpires(DateTime.Now.Add(refresh));
HttpContext.Current.Response.Cache.SetMaxAge(refresh);
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.Server);
HttpContext.Current.Response.Cache.SetValidUntilExpires(true);

//try out with – a simple handler which returns the current time

HttpContext.Current.Response.ContentType = "text/plain";
HttpContext.Current.Response.Write("Hello World " + DateTime.Now.ToString("HH:mm:ss"));