private void button1_Click(object sender, EventArgs e)
        {
            this.Hide();
            SaleForm s = new SaleForm();

            s.ShowDialog();
        }
        private void btn_login_Click(object sender, EventArgs e)
        {
            string username = txt_username.Text;
            string password
                = txt_password.Text;

            if (username == "" | password == "")
            {
                lbl_error.Text = "Please enter username or password";
            }
            else
            {
                SessionData.UserName = username;

                string returnvalue = pdal.Login(username, password);
                if (returnvalue == "invalid")
                {
                    lbl_error.Text = "Invalid UserName or Password";
                }
                else
                {
                    char[] delimiterChars = { ',' };


                    string[] list = returnvalue.Split(delimiterChars);
                    SessionData.IsLogedIn   = "true";
                    SessionData.userName    = list[0];
                    SessionData.firstName   = list[1];
                    SessionData.EmpID       = list[2];
                    SessionData.Role        = list[3];
                    SessionData.GuestId     = list[4];
                    SessionData.RolesData   = pdal.GetRoles(int.Parse(list[5]));
                    SessionData.discount    = pdal.ReturnDiscountPr();
                    SessionData.pricing     = pdal.GetPriceingMethod();
                    SessionData.alrtdaysexp = pdal.GetExpiryDays();
                    SessionData.cutOffTime  = pdal.GetCutOffTime();
                    #region Company Info
                    DAL.CompanyInfo cinfo = new DAL.CompanyInfo();
                    companyinfo     c     = cinfo.GetCompanyInfo(1);
                    SessionData.CName            = c.compName;
                    SessionData.CLocation        = c.CompPrintAddress;
                    SessionData.CContactNo       = c.CompContactNo;
                    SessionData.CWebSite         = c.CompWebsite;
                    SessionData.FooterMessage    = c.CompFootNote1;
                    SessionData.FooterMessageTwo = c.CompFootNote2;
                    SessionData.printerType      = c.prinerType;

                    #endregion

                    if (SessionData.Role.ToString() == "sales Person")
                    {
                        int  cutofftime      = int.Parse(SessionData.cutOffTime.ToString());
                        bool chksaledaystart = pdal.CheckNewDayOpen(cutofftime);
                        if (chksaledaystart)
                        {
                            SessionData.ThisSaleDayId = pdal.GetTodayDayId(cutofftime);
                            SaleForm s = new SaleForm();
                            s.ShowDialog();
                        }
                        else
                        {
                            SessionData.ThisSaleDayId = pdal.StartNewDay(cutofftime);
                            SaleForm s = new SaleForm();
                            s.ShowDialog();
                        }
                    }
                    this.Hide();
                    StartDay d = new StartDay();
                    d.ShowDialog();
                }
            }
        }