白色字符C＃文本框

Question

我是C＃的新手，我在C＃的文本框中遇到方形白色字符问题。 （见下面的截图）
我已经实现了System.Net.Sockets.支持的聊天客户端服务器程序。每个程序内部都是byte[] array= new byte[10025]，它永远不会完全填满，但文本框里面会显示空白字符。你可以帮我删除这个角色吗？
谢谢！

阅读客户端代码：
http://pastebin.com/W3Pc3BPG

        try
        {
            while (true)
            {
                serverStream = clientSocket.GetStream();
                int buffSize = 0;
                byte[] inStream = new byte[10025];
                buffSize = clientSocket.ReceiveBufferSize;
                serverStream.Read(inStream, 0, inStream.Length);
                string returndata = System.Text.Encoding.UTF8.GetString(inStream);
                readData = "" + returndata;
                msg();
            }
        } catch(Exception e)
        {
            ctThread.Join();
        }

Answer 1

serverStream = clientSocket.GetStream();
int buffSize = 0;
byte[] inStream = new byte[10025];
buffSize = clientSocket.ReceiveBufferSize;
// Make sure you respect the number of bytes that have been read.
// Note that the below code is not the most performant - it's just
// to demonstrate the technique. 
int bytesRead = serverStream.Read(inStream, 0, inStream.Length);
byte[] theData = inStream.Take(bytesRead).ToArray();
string returndata = System.Text.Encoding.UTF8.GetString(theData);
readData = "" + returndata;
msg();

Answer 2

您可以在文本框上使用以下代码来检查是否为空格。

bool hasAllWhitespace = txtBox1.Text.Length>0 &&
                        txtBox1.Text.Trim().Length==0;

消除空格

if (hasAllwhitespace)
{
    txtBox1.Text.Trim();
}