void frmLogin_Shown(object sender, EventArgs e)
{
//开始收听广播
UDPHelper.StartLogin_UDPServer(15000);
UDPHelper.handler = this;
this.Activate();
}
private void btnLogin_Click(object sender, EventArgs e)
{
//向教师端发送登陆请求
string id = this.textBox1.Text;
if (id == null || id == string.Empty || id.Length <= 0)
{
MessageBox.Show("请填写您的学号！", "提示");
return;
}
else
{
if (GlobalPara.dest_IP != string.Empty && GlobalPara.dest_login_port != string.Empty)
{
GlobalPara.clientID = id;
string strLoginInfo = string.Format("[id,{0},epc,]", id);
UDPHelper.SendData(strLoginInfo, GlobalPara.dest_IP, int.Parse(GlobalPara.dest_login_port));
this.logining = true;//标明窗体处于登陆过程中，不要将登陆按钮重置
this.btnLogin.Enabled = false;
this.textBox1.Enabled = false;
this.lblStatus.Text = "登录中，请确认您已刷卡...";
}
}
}