C# 它不会使用webrequest向网站发送文本

我想通过编程将数据发送到网站，然后通过编程单击提交按钮。这是我试图填充的HTML代码：

<textarea id="rpslBox:postRpsl:rpslObject" name="rpslBox:postRpsl:rpslObject" class="ripe-input-field ui-corner-all" rows="18" style="width:500px;"></textarea>

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当我运行此代码时，它返回页面的HTML代码，而不发送此文本。我怎么能发这篇短信？谢谢你的帮助

我无法测试这是否有效，但据我从中了解，以下代码将把postdata转换为bytedata并提交到Web服务器：

byte[] byteArray = Encoding.UTF8.GetBytes (postData);
// Set the ContentType property of the WebRequest.
request.ContentType = "application/x-www-form-urlencoded";
// Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length;
// Get the request stream.
Stream dataStream = request.GetRequestStream ();
// Write the data to the request stream.
dataStream.Write (byteArray, 0, byteArray.Length);
// Close the Stream object.
dataStream.Close ();

// Get the response.
WebResponse response = request.GetResponse ();
// Display the status.
Console.WriteLine (((HttpWebResponse)response).StatusDescription);
// Get the stream containing content returned by the server.
dataStream = response.GetResponseStream ();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader (dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd ();
// Display the content.
Console.WriteLine (responseFromServer);
// Clean up the streams.
reader.Close ();
dataStream.Close ();
response.Close ();

之后，可以使用以下代码从Web服务器读取新响应：

byte[] byteArray = Encoding.UTF8.GetBytes (postData);
// Set the ContentType property of the WebRequest.
request.ContentType = "application/x-www-form-urlencoded";
// Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length;
// Get the request stream.
Stream dataStream = request.GetRequestStream ();
// Write the data to the request stream.
dataStream.Write (byteArray, 0, byteArray.Length);
// Close the Stream object.
dataStream.Close ();

// Get the response.
WebResponse response = request.GetResponse ();
// Display the status.
Console.WriteLine (((HttpWebResponse)response).StatusDescription);
// Get the stream containing content returned by the server.
dataStream = response.GetResponseStream ();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader (dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd ();
// Display the content.
Console.WriteLine (responseFromServer);
// Clean up the streams.
reader.Close ();
dataStream.Close ();
response.Close ();

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是否有任何代码试图设置textarea的内容？这不说明你应该做什么吗？事实上我不明白如何点击提交按钮。request.Method=“POST”；够了吗？您在页面上尝试了示例吗？没有

request.Method=“POST”

不会提交您的数据，但这意味着当您发送表单时，应使用POST作为发送方式（即

和

！）我试过一个例子，我想我的问题是，我不知道如何提交。例如，如果我想登录facebook，它会停留在登录页面上，因为我无法单击“提交”。我的猜测是，你必须遵循http协议的规则，如下所述。如果您试图在postData中设置类似于

home=Cosby&favorite+flavor=flies

，会发生什么情况？