CODEWITHSUNDEEP
asp.netc#-4.0http-headershttpresponse
Aruna
Aruna

Reputation: 2052

Context.Response.Headers' threw an exception of type 'System.PlatformNotSupportedException

I'm trying to generate a PDF using a memory stream. When clears the headers, it threw Server cannot clear headers after HTTP headers have been sent. Here is my code snippet. 

Context.Response.Clear();
Context.Response.ClearHeaders();
Context.Response.ClearContent();

System.IO.MemoryStream st = new System.IO.MemoryStream();
st = (MemoryStream)levyStream;
byte[] b = st.ToArray();

 Context.Response.AppendHeader("Content-Disposition", "inline; filename="+MyFilename);
 Context.Response.AppendHeader("Content-Length", b.Length.ToString());
 Context.Response.BufferOutput = true;
 Context.Response.ContentType = "application/pdf";
 Context.Response.Charset = "";

 Context.Response.OutputStream.Write(b, 0, (int)st.Length);
 Context.Response.Flush();
 st.Close();

I have attached an error in response object along with this.

enter image description here

Regards, Aruna

Upvotes: 1

Views: 4507

Answers (1)

Jignesh Suvariya
Jignesh Suvariya

Reputation: 424

It appears you are using IIS 7. If so, you need to change the application pool type from classic to integrated. The integrated pipeline mode is IIS 7 specific.

Upvotes: 1

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