// Saves the item to the database
public void OnSave(object sender, EventArgs e)
{
if (!Validate())
{
return;
}
TodoItemDatabase.GetDatabase().SaveItem(Model);
Navigation.PopAsync();
}
//On Delete. The async operator allows us to use the await operator in our method.
public async void OnDelete(object sender, EventArgs e)
{
// Display a popup
var answer = await DisplayAlert("Are You Sure?", "This data will be lost forever and ever and ever.", "Delete", "NO NO NO");
//if true, delete the item
if (answer)
{
TodoItemDatabase.GetDatabase().DeleteItem(Model.ID);
// back button
await Navigation.PopAsync();
}
}
// called when becoming visible
protected override void OnAppearing()
{
base.OnAppearing();
//refresh our items list
Items = TodoItemDatabase.GetDatabase().GetItems();
}