Sending a HTTP Request from a Windows Application

[Andre Grumbach]

Hi NG,

I have a little Problem.

I make a normal HTML page which does following:

When I click the Button Submit, I send some fields to the Server back.

Here the Stream that my Browser sends to the Server:



POST http://sbscrm/MSCRMSERVICES/NoteUpload.srf HTTP/1.0
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword,
*/*
Referer: http://10.0.1.238/AttachmentHelpers/note_upload.htm
Accept-Language: de
Content-Type: multipart/form-data;
boundary=---------------------------7d41dd840021e
Proxy-Connection: Keep-Alive
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR
1.1.4322)
Host: sbscrm
Content-Length: 1426
Pragma: no-cache



-----------------------------7d41dd840021e
Content-Disposition: form-data; name="AttachmentType"



5
-----------------------------7d41dd840021e
Content-Disposition: form-data; name="AttachmentId"



{08FC8376-E0B0-48BF-985E-6C6C9E0EFE04}
-----------------------------7d41dd840021e
Content-Disposition: form-data; name="UserId"



{0EC47076-1022-45D7-966C-1CF56B393169}
-----------------------------7d41dd840021e
Content-Disposition: form-data; name="MerchantId"



{9515BDA2-5549-4CBE-BF1C-84C8FFA0CDDF}
-----------------------------7d41dd840021e
Content-Disposition: form-data; name="ErrorURL"



http://sbscrm/AttachmentHelpers/error.htm
-----------------------------7d41dd840021e
Content-Disposition: form-data; name="SuccessURL"



http://sbscrm/AttachmentHelpers/NoteDownload.htm
-----------------------------7d41dd840021e
Content-Disposition: form-data; name="userFile"; filename="C:\user.txt"
Content-Type: text/plain



UserID:{0EC47076-1022-45D7-966C-1CF56B393169}
Merchantid:{9515BDA2-5549-4CBE-BF1C-84C8FFA0CDDF}



Note1:{BD6B7AEA-314F-48DA-8490-08CD749D2E01}
Note2:{08FC8376-E0B0-48BF-985E-6C6C9E0EFE04}
Note3:{C268E4C9-28B8-4105-B4AE-13ADF029DA2C}
Note4:{DB359EC6-D0C9-4B8D-B93A-029F97523123}



AttachmentID:{9515BDA2-5549-4CBE-BF1C-84C8FFA0CDDF}
-----------------------------7d41dd840021e
Content-Disposition: form-data; name="UPL"



Submit
-----------------------------7d41dd840021e--

Now I want following:

When I click a button on a Windows Application, i want to send this stream
with some other values back to the Server.

Now I have search on a lot of pages and newsgroups, and found the following
helps:

With the class HttpWebRequest and WebRequest, it should be possible to send
such a Message to the HTTP Server.



My problem:

I didn't know how I can use this class without any error.

Can somebody of you help me?

 

[Joerg Jooss]

Hi NG,

I have a little Problem.

I make a normal HTML page which does following:

When I click the Button Submit, I send some fields to the Server back.

Here the Stream that my Browser sends to the Server:
[...]
Now I have search on a lot of pages and newsgroups, and found the
following helps:

With the class HttpWebRequest and WebRequest, it should be possible
to send such a Message to the HTTP Server.



My problem:

I didn't know how I can use this class without any error.

Can somebody of you help me?

Well, what *exactly* is your problem? What you want to do is to send a
multipart/form-data request, which is currently not properly supported by
the .NET ftamework, but there are sample implementations available on the
Web that show hoe to do that using HttpWebRequest.

Cheers,