private void SaveManufacturer(object manufacturerInstance)
{
ManufacturerViewModel manufacturerViewModel = manufacturerInstance as ManufacturerViewModel;
if (manufacturerViewModel.Manufacturer != null)
{
if (!manufacturerViewModel.IsValid)
{
Application.Current.MainPage.DisplayAlert("Предупреждение", "Задайте название производителя", "Ok");
return;
}
using (AppDbContext db = App.GetContext())
{
if (manufacturerViewModel.Manufacturer.ManufacturerId == 0)
{
db.Entry(manufacturerViewModel.Manufacturer).State = EntityState.Added;
}
else
{
db.Manufacturers.Update(manufacturerViewModel.Manufacturer);
}
db.SaveChanges();
}
}
Back();
}
private void DeleteManufacturer(object manufacturerInstance)
{
ManufacturerViewModel manufacturerViewModel = manufacturerInstance as ManufacturerViewModel;
if (manufacturerViewModel.Manufacturer != null && manufacturerViewModel.Manufacturer.ManufacturerId != 0)
{
using (AppDbContext db = App.GetContext())
{
db.Components.RemoveRange(manufacturerViewModel.Components);
db.Manufacturers.Remove(manufacturerViewModel.Manufacturer);
db.SaveChanges();
}
}
Back();
}
