public TopicosEditView(TopicosEditViewModel topico)
{
InitializeComponent();
if (topico is null)
{
throw new ArgumentException(nameof(topico));
}
BindingContext = topico;
}
private async void Add_Clicked(object sender, EventArgs e)
{
var pageVM = new TopicosEditViewModel(new TopicoModel {
DataCadastro = DateTime.Now
});
pageVM.TopicoAdded += (source, topico) =>
{
(BindingContext as TopicosViewModel).AddSalvar(topico);
};
await Navigation.PushAsync(new TopicosEditView(pageVM));
}
private async void listView_ItemSelected(object sender, SelectedItemChangedEventArgs e)
{
if (listView.SelectedItem == null)
{
return;
}
var selectedTopico = e.SelectedItem as TopicoModel;
listView.SelectedItem = null;
var pageVM = new TopicosEditViewModel(selectedTopico);
pageVM.TopicoUpdated += (source, topico) =>
{
selectedTopico.Id = topico.Id;
selectedTopico.Titulo = topico.Titulo;
selectedTopico.DataCadastro = topico.DataCadastro;
(BindingContext as TopicosViewModel).UpdateFromSalvar(selectedTopico);
};
await Navigation.PushAsync(new TopicosEditView(pageVM));
}
