private void SaveComponent(object componentInstance)
{
ComponentViewModel componentViewModel = componentInstance as ComponentViewModel;
if (componentViewModel.Component != null)
{
if (!componentViewModel.IsValid)
{
Application.Current.MainPage.DisplayAlert("Предупреждение", "Задайте название и форму компонента", "Ok");
return;
}
using (AppDbContext db = App.GetContext())
{
if (componentViewModel.Component.ComponentId == 0)
{
db.Entry(componentViewModel.Component).State = EntityState.Added;
}
else
{
db.Components.Update(componentViewModel.Component);
}
db.SaveChanges();
}
}
Back();
}
private void DeleteComponent(object componentInstance)
{
ComponentViewModel componentViewModel = componentInstance as ComponentViewModel;
if (componentViewModel.Component != null && componentViewModel.Component.ComponentId != 0)
{
using (AppDbContext db = App.GetContext())
{
db.Components.Remove(componentViewModel.Component);
db.SaveChanges();
}
}
Back();
}
