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 enterstationid = 0;
int leavestationid = 0;
int lineid = 0;
float ticketprice = 0;
if (!getStandard(out enterstationid, Text_enterstationid.Text) || !getStandard(out leavestationid, Text_leavestationid.Text) ||
!getStandard(out lineid, Text_lineid.Text) || !getStandard(out ticketprice, Text_ticketprice.Text))
{
MessageBox.Show("查询信息填写错误");
return;
}
var package = new TTS_Core.TicketPriceOperationPackage(user, ip_address + ":" + listen_port.ToString(), "server",
TTS_Core.Enum_OP.K_QUERY,
enterstationid, leavestationid, lineid, ticketprice);
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
TicketPriceClass {
enterstationid = int.Parse(package_rec.dataSet.Tables[0].Rows[i][0].ToString().Trim()),
leavestationid = int.Parse(package_rec.dataSet.Tables[0].Rows[i][1].ToString().Trim()),
lineid = int.Parse(package_rec.dataSet.Tables[0].Rows[i][2].ToString().Trim()),
ticketprice = float.Parse(package_rec.dataSet.Tables[0].Rows[i][3].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;
}
int selected_enterstationid = 0;
int selected_leavestationid = 0;
int selected_lineid = 0;
TicketPriceClass itemInfo = DataView.SelectedItem as TicketPriceClass;
if (itemInfo != null && itemInfo is TicketPriceClass)
{
selected_enterstationid = itemInfo.enterstationid;
selected_leavestationid = itemInfo.leavestationid;
selected_lineid = itemInfo.lineid;
}
else
{
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)
{
float ticketprice = 0;
if (!getStandard(out ticketprice, Text_ticketprice_Copy.Text))
{
MessageBox.Show("查询信息填写错误");
return;
}
var package = new TTS_Core.TicketPriceOperationPackage(user, ip_address + ":" + listen_port.ToString(), "server",
TTS_Core.Enum_OP.K_MODIFY,
selected_enterstationid, selected_leavestationid, selected_lineid, ticketprice);
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.ticketprice = ticketprice;
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();
}
}