public MainViewModel(IDependencyService serviceLocator)
{
this.serviceLocator = serviceLocator;
SearchCriteria = new ObservableCollection <SearchCriteriaViewModel>()
{
new SearchCriteriaViewModel {
Field = "Year",
Operator = ComparisonOperation.GreaterEqual,
Value = "2000"
}
};
Search = new AsyncDelegateCommand(OnSearch, () => SearchCriteria.Count > 0);
EditSearchCriteria = new AsyncDelegateCommand <SearchCriteriaViewModel>(OnEditSearchCriteria);
CancelSearch = new DelegateCommand(OnCancelSearch, () => cancellationTokenSource != null);
AddSearchCriteria = new AsyncDelegateCommand(OnAddSearchCriteria);
MessagingCenter.Subscribe <SearchCriteriaViewModel>(this, "Delete", async scvm => {
SearchCriteria.Remove(scvm);
if (SearchCriteria.Count == 0)
{
Search.RaiseCanExecuteChanged();
}
await serviceLocator.Get <INavigationService>().GoBackAsync();
});
}
public MainViewModel(IDependencyService serviceLocator)
{
this.serviceLocator = serviceLocator;
Quotes = new ObservableCollection <QuoteViewModel>(QuoteManager.Load(serviceLocator.Get <IQuoteLoader>())
.Select(q => new QuoteViewModel(q)));
SelectedQuote = Quotes.FirstOrDefault();
AddQuote = new AsyncDelegateCommand(OnAddQuote);
DeleteQuote = new AsyncDelegateCommand <QuoteViewModel>(OnDeleteQuote);
EditQuote = new AsyncDelegateCommand <QuoteViewModel>(OnEditQuote);
ShowQuoteDetail = new AsyncDelegateCommand <QuoteViewModel>(OnShowQuoteDetails);
}
public MainViewModel(IDependencyService serviceLocator)
{
this.serviceLocator = serviceLocator;
GetContact();
Contact unContact = new Contact();
Contacts = new ObservableCollection <ContactViewModel>(ListContacts
.Select(c => new ContactViewModel(c)));
SelectedContact = Contacts.FirstOrDefault();
AddContact = new AsyncDelegateCommand(OnAddContact);
DeleteContact = new AsyncDelegateCommand <ContactViewModel>(OnDeleteContact);
EditContact = new AsyncDelegateCommand <ContactViewModel>(OnEditContact);
ShowContactDetail = new AsyncDelegateCommand <ContactViewModel>(OnShowContactDetails);
}