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How to realize a C# page that give back an image instead of an html pageI have a static html page where I want to load image that day to day are in a different path, to achieve this I would want that the link point to a c# page where I create dinamically the new url, but how I can arrange a c# page that give back an image and not an html page ? I tried with the following code but the resulting page is empty File http://www.etantonio.it/Temp/Trad.aspx //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// <%@ Page Language="c#" Trace="true" Debug="true" %> <%@ import Namespace="System.Net" %> <%@ import Namespace="System.IO" %> <%@ import Namespace="System.Drawing" %> <script runat="server"> void Page_Load(Object Src, EventArgs E ) { if (!Page.IsPostBack) { String sAddressTime = "http://www.etantonio.it/images/zh.gif"; HttpWebRequest wreq; HttpWebResponse wresp; Stream mystream; Bitmap bmp; bmp = null; mystream = null; wresp = null; try { wreq = (HttpWebRequest)WebRequest.Create(sAddressTime); wresp = (HttpWebResponse)wreq.GetResponse(); if ((mystream = wresp.GetResponseStream()) != null) { Response.Clear(); Response.ContentType = "image/jpeg"; Response.StatusCode = 200; Bitmap bmpOriginal = new Bitmap( "yourimage.jpg" ); bmp = new Bitmap(mystream); bmp.Save( Response.OutputStream, bmp.RawFormat ); bmp.Dispose(); bmp = null; Response.Close(); return; } } finally { if (mystream != null) mystream.Close(); if (wresp != null) wresp.Close(); } } } </script> <html><head>/head><body ></body></html> //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// that it is called from a simple html file named CallTrad.aspx //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Untitled Document</title> </head> <body> <img src="http://www.etantonio.it/Temp/Trad.aspx" /> </body> </html> //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Eng. Antonio D'Ottavio www.etantonio.it/en Etantonio, sending your question to all newsgroups, will only make the
change less that you get an answer, this newsgroup has nothing to do with webpages beside as they need a datase, which is not in your question. "Etantonio" <etanto***@gmail.com> schreef in bericht I have a static html page where I want to load image that day to daynews:1166265764.725083.276110@l12g2000cwl.googlegroups.com... Good morning, are in a different path, to achieve this I would want that the link point to a c# page where I create dinamically the new url, but how I can arrange a c# page that give back an image and not an html page ? I tried with the following code but the resulting page is empty File http://www.etantonio.it/Temp/Trad.aspx //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// <%@ Page Language="c#" Trace="true" Debug="true" %> <%@ import Namespace="System.Net" %> <%@ import Namespace="System.IO" %> <%@ import Namespace="System.Drawing" %> <script runat="server"> void Page_Load(Object Src, EventArgs E ) { if (!Page.IsPostBack) { String sAddressTime = "http://www.etantonio.it/images/zh.gif"; HttpWebRequest wreq; HttpWebResponse wresp; Stream mystream; Bitmap bmp; bmp = null; mystream = null; wresp = null; try { wreq = (HttpWebRequest)WebRequest.Create(sAddressTime); wresp = (HttpWebResponse)wreq.GetResponse(); if ((mystream = wresp.GetResponseStream()) != null) { Response.Clear(); Response.ContentType = "image/jpeg"; Response.StatusCode = 200; Bitmap bmpOriginal = new Bitmap( "yourimage.jpg" ); bmp = new Bitmap(mystream); bmp.Save( Response.OutputStream, bmp.RawFormat ); bmp.Dispose(); bmp = null; Response.Close(); return; } } finally { if (mystream != null) mystream.Close(); if (wresp != null) wresp.Close(); } } } </script> <html><head>/head><body ></body></html> //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// that it is called from a simple html file named CallTrad.aspx //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Untitled Document</title> </head> <body> <img src="http://www.etantonio.it/Temp/Trad.aspx" /> </body> </html> //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Eng. Antonio D'Ottavio www.etantonio.it/en  |
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