private void materialButton2_Click(object sender, EventArgs e)
 {
     if (saveondatabase)
     {
         taxcategory.name = betterTextBox_title.Text;
         // taxcategory.firscalyear_id = INFO.currentFiscalYear.id;
         taxcategory.admin_id   = INFO.admin_id;
         taxcategory.updated_at = DateTime.Now;
         taxcategory.created_at = DateTime.Now;
         DB.Instance.SaveChanges();
     }
     else
     {
         var addnew = new Model.taxcategory()
         {
             name     = betterTextBox_title.Text,
             admin_id = INFO.admin_id,
             // firscalyear_id = INFO.currentFiscalYear.id,
             created_at = DateTime.Now,
             updated_at = DateTime.Now,
         };
         DB.Instance.taxcategories.Add(addnew);
         DB.Instance.SaveChanges();
         saveondatabase = true;
     }
 }
 public Viwer(int id)
 {
     InitializeComponent();
     taxcategory = DB.Instance.taxcategories.Find(id);
     betterTextBox_title.Text = taxcategory.name;
     saveondatabase           = true;
 }