private void btnLogin_Click(object sender, EventArgs e)
{
try
{
CommonBLL.SetLocalSystemDateTime( );
bool flag = false;
string strUser = txtUserNo.Text.Trim( );
string strPassword = txtPassword.Text.Trim( );
if (strUser.Length == 0)
{
MessageBox.Show("工号不能为空！", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Question);
this.txtUserNo.Focus( );
return;
}
if (strPassword.Length == 0)
{
MessageBox.Show("密码不能为空！", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Question);
this.txtPassword.Focus( );
return;
}
flag = bll.EmployeeExists(strUser);
if (!flag)
{
MessageBox.Show("工号输入错误！", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Question);
txtUserNo.Select(0, txtUserNo.Text.Trim( ).Length);
this.txtUserNo.Focus( );
return;
}
flag = bll.ValidateEmployee(strUser, strPassword);
if (!flag)
{
MessageBox.Show("密码输入错误！", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Question);
txtPassword.Select(0, txtPassword.Text.Trim( ).Length);
this.txtPassword.Focus( );
return;
}
DataSet dsEmployeeInfo = elBLL.GetDsEmployeeInfo(strUser);
if (dsEmployeeInfo.Tables[0].Rows.Count > 0)
{
UserId = dsEmployeeInfo.Tables[0].Rows[0]["EmployeeId"].ToString( );
}
elBLL.DeleteEmployeeLogin(UserId, StrIP); //将非法退出的记录进行删除
DataTable dt = elBLL.GetEmployeeLoginByEmployeeId(UserId).Tables[0];
DateTime curDT = DateTime.Parse(CommonBLL.GetDate("yyyy-MM-dd HH:mm:ss"));
bool flag1 = false;
if (dt.Rows.Count > 0)
{
foreach (DataRow row in dt.Rows)
{
if (bool.Parse(row["Flag"].ToString( )))
{
DateTime tempdt = DateTime.Parse(row["CurrentTime"].ToString( ));
if (curDT > tempdt)
{
TimeSpan ts = curDT - tempdt;
//ts.TotalSeconds
//DateTime diffDT = curDT.Subtract(tempdt);
if (ts.TotalSeconds >= 0 && ts.TotalSeconds <= 60)
{
flag1 = true;
}
}
else
{
flag1 = true;
}
}
else
{
DateTime tempdt = DateTime.Parse(row["LoginTime"].ToString( ));
if (curDT > tempdt)
{
TimeSpan ts = curDT - tempdt;
//ts.TotalSeconds
//DateTime diffDT = curDT.Subtract(tempdt);
if (ts.TotalSeconds >= 0 && ts.TotalSeconds <= 60)
{
flag1 = true;
}
}
else
{
flag1 = true;
}
}
}
}
if (flag1)
{
MessageBox.Show("该用户正在登陆系统，该系统不允许重复登陆！", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Question);
this.Dispose( );
Application.Exit( );
return;
}
else
{
EmployeeLoginEntity elEntity = new EmployeeLoginEntity( );
StrMAC = "1111111111111111111";
elEntity.EmployeeId = UserId;
elEntity.IpAddress = StrIP;
elEntity.MacAddress = StrMAC;
elEntity.LoginTime = DateTime.Parse(CommonBLL.GetDate("yyyy-MM-dd HH:mm:ss"));
elEntity.Flag = false;
LoginId = elBLL.AddEmployeeLogin(elEntity);
FrmMain main = new FrmMain( );
this.Hide( );
main.Show( );
return;
}
//FrmMain main = new FrmMain();
//this.Hide();
//main.Show();
}
catch (Exception Err)
{
MessageBox.Show("无法连接服务器，请联系管理员.\n" + Err.Message, "系统提示");
Environment.Exit(0);
}
}