string name = textBox.Text;
string favColour = textBox1.Text;
ASCIIEncoding encoding = new ASCIIEncoding();
string postData = "name=" + name + "&favColour" + favColour;
byte[] data = encoding.GetBytes(postData);
WebRequest request = WebRequest.Create("mywebsite.com");
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;
Stream stream = request.Get;
Visual Studio 2015 存在 request.ContentLength 问题。它表示 WebRequest 中没有 ContentLength 的定义。