VB.NET POST multiple files and parameters - vb.net

Question

I need to make a POST request to a server.
this request must have multiple parameters, like this :
name
number
host
and multiples files
file1
file2
file3
How can I do that in VB.NET. I tried WebRequest object, but there's no simple way to do that.
thanks

Answer 1

Use Webclient instead :
For values :
' Create a value collection
Dim myNameValueCollection As New NameValueCollection()
' Set up POST variables
myNameValueCollection.Add("name", someName)
myNameValueCollection.Add("number", someNumber)
...
Using wc As New System.Net.WebClient()
wc.UploadValues(remoteUrl, myNameValueCollection)
End Using
And for files simply :
Using wc As New System.Net.WebClient()
wc.UploadFile(remoteUrl, yourfile)
End Using

Answer 2

I didn't check if it will work, but I would try something like:
' post request with some parameters inside query string
uriPath = String.Format("{0}{1}?func=xxx&uid={2}", url, fileName, id)
reqUri = New Uri(uriPath)
webReq = CType(WebRequest.Create(reqUri), HttpWebRequest)
webReq.Method = "Post"
' webReq.Timeout = 10000
webReq.KeepAlive = False
webReq.ContentType = "application/x-www-form-urlencoded"
' HERE is a place to attach your files
' try to run it at loop for each file
form = "name=" & fileName
webReq.ContentLength = form.Length
Dim sw As New StreamWriter(webReq.GetRequestStream, System.Text.Encoding.ASCII)
sw.Write(form)
' here write/send the file content
sw.Flush()
sw.Close()
sw.Dispose()
' reading response
Using res As WebResponse = webReq.GetResponse
Dim st As Stream = res.GetResponseStream()
Dim rd As New StreamReader(st)
status = rd.ReadLine()
If I remember well POST request of application/x-www-form-urlencoded type is sent
in form of:
--- params separator
name=fileName
file content
--- params separator
name=fileName1
file1 content