I can't view output from C# web form !??

watchesbMike · Apr 28, 2012

I can't view output from this page on web page. I have created C# web project, and .aspx web form. Then created the following code and when I try to view the page with browser, I see nothing. Can someone tell what I need to do ? <% @Import Namespace="System.Drawing" %> <% @Import Namespace="System.Drawing.Imaging" %> <script language="c#" runat="server"> void Serpinski(int width, int height, int iterations) { ........ ........ } void Page_Load(Object senter, EventArgs e) { Serpinski(200,200, 10000); } </script> It looks like you are doing my Serpinski Triangle example! Neat!

Since you are (I'm assuming) outputting an image, you should set the ContentType property to "image/gif" (or "image/jpg"): Response.ContentType = "image/jpg" Also, I'm sure you are outputting the string to the Response's Output Stream? If not, that would be why you're seeing nothing!

I have copied your Serpinski Triangle as it is in the article. Still I do not see anything in the output. Iam not sure if some default setting got overwritten. <%@ Page language="c#" %><% @Import Namespace="System.Drawing" %><% @Import Namespace="System.Drawing.Imaging" %><script language="c#" runat="server"> void Serpinski(int width, int height, int iterations) { // create the Bitmap Bitmap bitmap = new Bitmap(width, height); // Create our triangle's three Points Point top = new Point(width / 2, 0), bottomLeft = new Point(0,height), bottomRight = new Point(width, height); // Now, choose our starting point Point current = new Point(width / 2, height / 2); // Iterate iterations times Random rnd = new Random(); for (int iLoop = 0; iLoop < iterations; iLoop++) { // draw the pixel bitmap.SetPixel(current.X, current.Y, Color.Red); // Choose our next pixel switch (rnd.Next(3)) { case 0: current.X -= (current.X - top.X) / 2; current.Y -= (current.Y - top.Y) / 2; break; case 1: current.X -= (current.X - bottomLeft.X) / 2; current.Y -= (current.Y - bottomLeft.Y) / 2; break; case 2: current.X -= (current.X - bottomRight.X) / 2; current.Y -= (current.Y - bottomRight.Y) / 2; break; } } // Save the image to the OutputStream Response.ContentType = "image/jpeg"; bitmap.Save(Response.OutputStream, ImageFormat.Jpeg); // clean up... bitmap.Dispose(); } void Page_Load(Object senter, EventArgs e) { Serpinski(200,200, 10000); } </script>When you try to view the page through your browser and do a View/Source, what do you see? Also, when you view it through your browser and you click on File/Properties what is the Type? (I'm assuming you're using IE - are you using Netscape?) Also, are you using ASP.NET v1.0?This is great!! I see all my source code as it is when I do view/source. I am not sure what is going on. I see the same behaviour with many examples I am trying. File/Properties ->Protocol - HyperText Transfer Protocol Type - ASPX File Connection - Not Encrypted Address - http://chinnam/LearnC/TriFractal.aspx That is, are you running Windows 2000 or Windows XP Pro and have installed the .NET Framework?When I try to view any .ASPX file, I see source code in my browser. When I build the project, it shows .ASPX.CS, .ASPX.VB getting created. It shows that project got built without any errors. I have installed PWS 5.0/IIS from W2K professional CD before installing it from .NET BETA2 DVD. .NET beta1 worked fine on this machine. I have removed Beta1 before trying Beta2. Iam using Browser : IE6.0 Software : Microsoft Visual Studio.Net .Net framework Beta2 DVD(Includes .net readiness tools and resources) Operating system : Windows2000 Professional IIS : 5.0(installed before .NET, SDK) Please help me with this

I can't view output from C# web form !??

watchesbMike

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