private void Button_query_Click(object sender, RoutedEventArgs e)
{
DataView.Items.Clear();
TcpClient tcpClient = null;
NetworkStream networkStream = null;
try
{
tcpClient = new TcpClient();
tcpClient.Connect(ip_address, port); //建立与服务器的连接
networkStream = tcpClient.GetStream();
if (networkStream.CanWrite)
{
int lineid = -1;
if (Text_lineid.Text != "" && !int.TryParse(Text_lineid.Text, out lineid))
{
MessageBox.Show("lineid填写错误");
return;
}
var package = new TTS_Core.LineOperationPackage(user, ip_address + ":" + listen_port.ToString(), "server",
TTS_Core.Enum_OP.K_QUERY,
lineid, Text_linename.Text);
byte[] sendBytes = package.DataPackageToBytes(); //注册数据包转化为字节数组
networkStream.Write(sendBytes, 0, sendBytes.Length);
var newClient = tcp_listener.AcceptTcpClient();
var bytes = ReadFromTcpClient(newClient); //获取数据
var package_rec = new TTS_Core.DataSetPackage(bytes);
if (package_rec.forbid != 0 && package_rec.forbid != 1)
{
MessageBox.Show("出大问题");
}
if (package_rec.forbid == 1)
{
MessageBox.Show("查询失败，服务器或者网络出现故障");
}
else
{
int row = package_rec.row;
int col = package_rec.col;
for (int i = 0; i < row; ++i)
{
DataView.Items.Add(new
LineClass {
lineid = int.Parse(package_rec.dataSet.Tables[0].Rows[i][0].ToString().Trim()),
linename = package_rec.dataSet.Tables[0].Rows[i][1].ToString().Trim(),
});
}
DataView.Items.Refresh();
MessageBox.Show("查询成功");
}
}
}
catch
{
MessageBox.Show("无法连接到服务器或字段填写错误!");
return;
}
finally
{
if (networkStream != null)
{
networkStream.Close();
}
tcpClient.Close();
}
}
private void Button_modify_Click(object sender, RoutedEventArgs e)
{
if (DataView.SelectedItem == null)
{
return;
}
LineClass itemInfo = DataView.SelectedItem as LineClass;
if (itemInfo == null || !(itemInfo is LineClass))
{
MessageBox.Show("获取选中项出现问题");
return;
}
TcpClient tcpClient = null;
NetworkStream networkStream = null;
try
{
tcpClient = new TcpClient();
tcpClient.Connect(ip_address, port); //建立与服务器的连接
networkStream = tcpClient.GetStream();
if (networkStream.CanWrite)
{
var package = new TTS_Core.LineOperationPackage(user, ip_address + ":" + listen_port.ToString(), "server",
TTS_Core.Enum_OP.K_MODIFY,
itemInfo.lineid, Text_linename_Copy.Text);
byte[] sendBytes = package.DataPackageToBytes(); //注册数据包转化为字节数组
networkStream.Write(sendBytes, 0, sendBytes.Length);
var newClient = tcp_listener.AcceptTcpClient();
var bytes = ReadFromTcpClient(newClient); //获取数据
var package_rec = new TTS_Core.DataSetPackage(bytes);
if (package_rec.forbid != 0 && package_rec.forbid != 1)
{
MessageBox.Show("出大问题");
}
if (package_rec.forbid == 1)
{
MessageBox.Show("修改失败，请检查完整性约束或者是服务器故障");
}
else
{
itemInfo.linename = Text_linename_Copy.Text;
DataView.Items.Insert(DataView.SelectedIndex, itemInfo);
DataView.Items.Remove(DataView.SelectedItem);
DataView.Items.Refresh();
}
}
}
catch
{
MessageBox.Show("无法连接到服务器!");
return;
}
finally
{
if (networkStream != null)
{
networkStream.Close();
}
tcpClient.Close();
}
}
