c# – 如何在WinForm的浏览器中打开默认Windows浏览器并将HTTP发

Process.Start("http://www.ketabchin.com/sort)

但在此命令中,我无法将发布数据发送到该URL
然后我用这个代码：

Public Shared Function PostMessageToURL(url As String) As String
    Dim request As WebRequest = WebRequest.Create("https://www.ketabchin.com/windows-logged")
    request.Method = "POST"
    Dim postData As String = "u=" & FrmMain.Username & "&p=" & FrmMain.Password & "&url=" & url
    Dim byteArray As Byte() = Encoding.UTF8.GetBytes(postData)
    request.ContentType = "application/x-www-form-urlencoded"
    request.ContentLength = byteArray.Length
    Dim dataStream As Stream = request.GetRequestStream()
    dataStream.Write(byteArray,byteArray.Length)
    dataStream.Close()
    Dim response As WebResponse = request.GetResponse()
    Console.WriteLine(CType(response,HttpWebResponse).StatusDescription)
    dataStream = response.GetResponseStream()
    Dim reader As New StreamReader(dataStream)
    Dim responseFromServer As String = reader.ReadToEnd()

    reader.Close()
    dataStream.Close()
    response.Close()
    Return responseFromServer
End Function

这个将HTTP POST请求数据发送到url但我无法在默认Web浏览器中打开它或响应.
我怎样才能做到这一点？
这个行动背后的逻辑是.我有一个WinForm应用程序,当我的用户点击我的应用程序中的“转到网站”按钮.我想打开浏览器并将登录数据发送到登录页面,这样用户就可以在日志记录模式下访问该站点.