private void SaveField(object fieldInstance)
{
FieldViewModel fieldViewModel = fieldInstance as FieldViewModel;
if (fieldViewModel.Field != null)
{
if (!fieldViewModel.IsValid)
{
Application.Current.MainPage.DisplayAlert("Предупреждение", "Задайте название поля", "Ok");
return;
}
using (AppDbContext db = App.GetContext())
{
if (fieldViewModel.Field.FieldId == 0)
{
db.Entry(fieldViewModel.Field).State = EntityState.Added;
}
else
{
db.Fields.Update(fieldViewModel.Field);
}
db.SaveChanges();
}
}
Back();
}
private void DeleteField(object fieldInstance)
{
FieldViewModel fieldViewModel = fieldInstance as FieldViewModel;
if (fieldViewModel.Field != null && fieldViewModel.Field.FieldId != 0)
{
using (AppDbContext db = App.GetContext())
{
db.Fields.Remove(fieldViewModel.Field);
db.SaveChanges();
}
}
Back();
}