protected void Page_Load(object sender, EventArgs e)
{
/* Response.Expires = -1;
* Response.Cache.SetNoServerCaching();
* Response.Cache.SetAllowResponseInBrowserHistory(false);
* Response.CacheControl = "no-cache";
* Response.Cache.SetNoStore();
*/
if (!Page.IsPostBack)
{
#if _DOTRACE
System.Diagnostics.Trace.Write(DateTime.Now.ToString() + ": ");
System.Diagnostics.Trace.WriteLine("entering ImageOutput.aspx Page_Load");
System.Diagnostics.Trace.Flush();
#endif
Converter converter = new Converter();
ImageFormat outputFormat = null;
switch (Request.QueryString["ex"])
{
case "jpeg":
Response.ContentType = "image/jpeg";
outputFormat = ImageFormat.Jpeg;
break;
case "gif":
Response.ContentType = "image/gif";
outputFormat = ImageFormat.Gif;
break;
case "png":
Response.ContentType = "image/png";
outputFormat = ImageFormat.Png;
break;
}
try
{
converter.DecodeFromStringUnicode(Session["currPicture"].ToString()).Save(Response.OutputStream, outputFormat);
#if _DOTRACE
System.Diagnostics.Trace.Write(DateTime.Now.ToString() + ": ");
System.Diagnostics.Trace.WriteLine("completed ImageOutput.aspx Page_Load");
System.Diagnostics.Trace.Flush();
#endif
}
catch (ArgumentException ex)
{
Response.Redirect("FailImage.GIF");
}
catch (System.Runtime.InteropServices.ExternalException ex)
{
Response.Redirect("FailImage.GIF");
}
}
}
