public MainPageViewModel()
{
List <Note> notesList = App.Database.GetNotesAsync().Result;
foreach (var note in notesList)
{
notes.Add(note);
}
EraseCommand = new Command(() => {
Note = string.Empty;
});
SaveCommand = new Command(async() => {
Note note = new Note()
{
Text = Note, Date = DateTime.Now
};
Notes.Add(note);
await App.Database.SaveNoteAsync(note);
Note = string.Empty;
});
SelectionChangedCommand = new Command(async() => {
var detailVM = new DetailPageViewModel(SelectedNote);
var detailView = new DetailPage();
detailView.BindingContext = detailVM;
await Application.Current.MainPage.Navigation.PushAsync(detailView);
});
}
public NoteListViewModel(IPageService pageService)
{
_pageService = pageService;
GetData();
EraseCommand = new Command(() => {
Note = string.Empty;
});
AddTaskCommand = new Command((parameter) =>
{
_pageService.PushAsync(new NoteEntryPage()
{
BindingContext = this
});
});
SaveCommand = new Command(async(parameter) => {
if (SaveText.Equals("Save"))
{
Note note = new Note()
{
Text = Note, Date = DateTime.Now
};
Notes.Add(note);
await App.Database.SaveNoteAsync(note);
Note = string.Empty;
}
else if (SelectedNote != null)
{
int currentIndex = Notes.IndexOf(SelectedNote);
Notes.Remove(SelectedNote);
Note note = new Note()
{
Text = Note, Date = DateTime.Now, ID = SelectedNote.ID
};
await App.Database.SaveNoteAsync(note);
Notes.Insert(currentIndex, note);
SelectedNote = null;
Note = string.Empty;
SaveText = "Save";
}
_pageService.PopAsync();
});
SelectionChangedCommand = new Command(async() => {
var detailVM = new DetailPageViewModel(SelectedNote);
var detailView = new DetailPage();
detailView.BindingContext = detailVM;
await Application.Current.MainPage.Navigation.PushAsync(detailView);
});
DeleteCommand = new Command(async(parameter) => {
if (parameter != null)
{
Note currentNote = (parameter as Note);
SelectedNote = currentNote;
Notes.Remove(currentNote);
await App.Database.DeleteNoteAsync(currentNote);
}
});
EditCommand = new Command((parameter) => {
if (parameter != null)
{
Note currentNote = (parameter as Note);
SelectedNote = currentNote;
Note = currentNote.Text;
SaveText = "Update";
_pageService.PushAsync(new NoteEntryPage()
{
BindingContext = this
});
}
});
SearchCommand = new Command((parameter) => {
var textchanged = parameter as TextChangedEventArgs;
if (textchanged != null)
{
Notes.Clear();
foreach (var note in _notesList.Where(i => i.Text.StartsWith(textchanged.NewTextValue)))
{
Notes.Add(note);
}
}
});
}
