private void btnOk_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show(check().ToString());
            if(check())
            {
                Luongvaphucap l = new Luongvaphucap();
                l.Ma = txtMa.Text;
                l.Nienhan = int.Parse(txtNienhan.Text);
                l.Muc1 = convert1(txtHeso1.Text);
                l.Muc2 = convert1(txtHeso2.Text);
                l.Muc3 = convert1(txtHeso3.Text);
                l.Muc4 = convert1(txtHeso4.Text);
                l.Muc5 = convert1(txtHeso5.Text);
                l.Muc6 = convert1(txtHeso6.Text);
                l.Muc7 = convert1(txtHeso7.Text);
                l.Muc8 = convert1(txtHeso8.Text);
                if (them) ql.ThemLuongvaphucap(l);
                else ql.SuaLuongvaphucap(l);

                foreach(FrameworkElement  child in (this.Parent as StackPanel).Children)
                {
                    if (child.Name=="UC")
                    {
                        LuongUC b = child as LuongUC;
                        b.loadDanhsach();
                        break;
                    }
                }
                (this.Parent as StackPanel).Children.Remove(this);
                
            }
        }
 public ThemSuaLuong(Luongvaphucap l)
 {
     InitializeComponent();
     lbTitle.Content = "THAY ĐỔI LƯƠNG VÀ PHỤ CẤP";
     them = false;
     txtMa.IsEnabled = false;
     this.DataContext = l;
 }
 public bool ThemLuongvaphucap(Luongvaphucap cv)
 {
     try
     {
         ql.Luongvaphucaps.Add(cv);
         return ql.SaveChanges() > 0 ? true : false;
     }
     catch(Exception e)
     {
         Console.WriteLine(e.Message);
     }
     return false;
 }
 public bool SuaLuongvaphucap(Luongvaphucap cv)
 {
     try
     {
         Luongvaphucap c = ql.Luongvaphucaps.SingleOrDefault(t => t.Ma == cv.Ma);
         c.Nienhan = cv.Nienhan;
         c.Muc1 = cv.Muc1;
         c.Muc2 = cv.Muc2;
         c.Muc3 = cv.Muc3;
         c.Muc4 = cv.Muc4;
         c.Muc5 = cv.Muc5;
         c.Muc6 = cv.Muc6;
         c.Muc7 = cv.Muc7;
         c.Muc8 = cv.Muc8;
         ql.Entry(c).State = System.Data.Entity.EntityState.Modified; //cập nhật dữ liệu
         return ql.SaveChanges() > 0 ? true : false;
     }
     catch (Exception e)
     {
         Console.WriteLine(e.Message);
     }
     return false;
 }