文本对话已经实现了，我贴一下文件传输部分的代码。
这次真的是修了很多次代码但是不知道问题在哪里，希望能够请大家指点一下迷津。谢谢。
现在的问题是一传送文件就会出现错误，信息是：“System.ArgumentException”类型的异常在 mscorlib.dll 中发生，但未在用户代码中进行处理。
虽然他这么说了但是还是不太明白意思，所以求助一下大家。
这是发送文件时候的代码
程序代码：if (fileInSending == false)
{
fileInSending = true;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
FileInfo file = new FileInfo(openFileDialog1.FileName);
using (FileStream fs = new FileStream(openFileDialog1.FileName, FileMode.Open, FileAccess.Read))
{
BinaryWriter BWriter = new BinaryWriter(NetStream);
BWriter.Write(1);//代号1表示单个文件的总长度+文件名字节长度+文件名
BWriter.Write(fs.Length);//总长
byte[] nameBuffer = Encoding.UTF8.GetBytes(Path.GetFileName(file.FullName));
BWriter.Write(nameBuffer.Length);//文件名长度
NetStream.Write(nameBuffer, 0, nameBuffer.Length);//文件名
int len = 0;
byte[] buffer = new byte[4000];
while (NetStream.CanWrite)
{
len = fs.Read(buffer, 0, buffer.Length);
BWriter.Write(2);//代号2表示文件块的长度
BWriter.Write(len);
BWriter.Write(4);//代号4表示文件
NetStream.Write(buffer, 0, len);
buffer = new byte[4000];
}
fileInSending = false;
}
}
}
{
fileInSending = true;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
FileInfo file = new FileInfo(openFileDialog1.FileName);
using (FileStream fs = new FileStream(openFileDialog1.FileName, FileMode.Open, FileAccess.Read))
{
BinaryWriter BWriter = new BinaryWriter(NetStream);
BWriter.Write(1);//代号1表示单个文件的总长度+文件名字节长度+文件名
BWriter.Write(fs.Length);//总长
byte[] nameBuffer = Encoding.UTF8.GetBytes(Path.GetFileName(file.FullName));
BWriter.Write(nameBuffer.Length);//文件名长度
NetStream.Write(nameBuffer, 0, nameBuffer.Length);//文件名
int len = 0;
byte[] buffer = new byte[4000];
while (NetStream.CanWrite)
{
len = fs.Read(buffer, 0, buffer.Length);
BWriter.Write(2);//代号2表示文件块的长度
BWriter.Write(len);
BWriter.Write(4);//代号4表示文件
NetStream.Write(buffer, 0, len);
buffer = new byte[4000];
}
fileInSending = false;
}
}
}
这是文件接收时的代码，里面用到的未申明变量都是类变量，backgroundWorker2组件是在计时器计时的时候触发的。因为把服务端和客户端都写在了一起，是通过界面上的一些选择来控制作为服务端还是客户端的，所以代码中有两个Client，Client是客户端，Subclient是服务端。命名好像确实有点奇怪了，请大家包涵。
程序代码： private void backgroundWorker2_DoWork(object sender, DoWorkEventArgs e)
{
if (Client is TcpClient)
{
if (Client.Available != 0)
{
BinaryReader BReader = new BinaryReader(NetStream);
codeNum = BReader.ReadInt32();
}
}
else if (Subclient is TcpClient)
{
if (Subclient.Available != 0)
{
BinaryReader BReader = new BinaryReader(NetStream);
codeNum = BReader.ReadInt32();
}
}
}
private void backgroundWorker2_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
BinaryReader BReader = new BinaryReader(NetStream);
#region 文本长度获取+文本读取
if (codeNum == 0)//代号0表示文本长度
{
textLength = BReader.ReadInt32();
}
else if (codeNum == 3)//代号3表示文本
{
byte[] buffer = new byte[textLength];
NetStream.Read(buffer, 0, buffer.Length);
string text = "";
text = Encoding.UTF8.GetString(buffer);
textLength = 0;
if (text != null)
{
ShowMessage(text, false);
}
}
#endregion
#region 文件总长度获取+文件名获取+每个文件块大小获取+文件获取
else if (codeNum == 1)//代号1表示单个文件的总长度+文件名字节长度+文件名
{
fileFullLength = BReader.ReadInt64();
fileNameLength = BReader.ReadInt32();
byte[] buffer = new byte[fileNameLength];
fileName = Encoding.UTF8.GetString(buffer);
fileRecievedLength = 0;
FileDeliver fd = new FileDeliver();
fd.fileRecievedPercent = (int)Math.Floor((double)(fileRecievedLength / fileFullLength)) * 100;
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
saveFileDialog1.FileName = fileName;
fs = File.Create(saveFileDialog1.FileName);
}
}
else if (codeNum == 2)
{
fileBlockLength = BReader.ReadInt32();
}
else if (codeNum == 4)
{
byte[] buffer = new byte[fileBlockLength];
NetStream.Read(buffer, 0, buffer.Length);
fs.Write(buffer, 0, buffer.Length);
fileRecievedLength = fs.Length;
//判定是否文件接收完毕
if (fs.Length == fileFullLength)
{
fileFullLength = 0;
fileNameLength = 0;
fileName = "";
fileBlockLength = 0;
fileRecievedLength = 0;
}
}
#endregion
}
{
if (Client is TcpClient)
{
if (Client.Available != 0)
{
BinaryReader BReader = new BinaryReader(NetStream);
codeNum = BReader.ReadInt32();
}
}
else if (Subclient is TcpClient)
{
if (Subclient.Available != 0)
{
BinaryReader BReader = new BinaryReader(NetStream);
codeNum = BReader.ReadInt32();
}
}
}
private void backgroundWorker2_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
BinaryReader BReader = new BinaryReader(NetStream);
#region 文本长度获取+文本读取
if (codeNum == 0)//代号0表示文本长度
{
textLength = BReader.ReadInt32();
}
else if (codeNum == 3)//代号3表示文本
{
byte[] buffer = new byte[textLength];
NetStream.Read(buffer, 0, buffer.Length);
string text = "";
text = Encoding.UTF8.GetString(buffer);
textLength = 0;
if (text != null)
{
ShowMessage(text, false);
}
}
#endregion
#region 文件总长度获取+文件名获取+每个文件块大小获取+文件获取
else if (codeNum == 1)//代号1表示单个文件的总长度+文件名字节长度+文件名
{
fileFullLength = BReader.ReadInt64();
fileNameLength = BReader.ReadInt32();
byte[] buffer = new byte[fileNameLength];
fileName = Encoding.UTF8.GetString(buffer);
fileRecievedLength = 0;
FileDeliver fd = new FileDeliver();
fd.fileRecievedPercent = (int)Math.Floor((double)(fileRecievedLength / fileFullLength)) * 100;
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
saveFileDialog1.FileName = fileName;
fs = File.Create(saveFileDialog1.FileName);
}
}
else if (codeNum == 2)
{
fileBlockLength = BReader.ReadInt32();
}
else if (codeNum == 4)
{
byte[] buffer = new byte[fileBlockLength];
NetStream.Read(buffer, 0, buffer.Length);
fs.Write(buffer, 0, buffer.Length);
fileRecievedLength = fs.Length;
//判定是否文件接收完毕
if (fs.Length == fileFullLength)
{
fileFullLength = 0;
fileNameLength = 0;
fileName = "";
fileBlockLength = 0;
fileRecievedLength = 0;
}
}
#endregion
}