public void CanExecuteChangedTest()
{
var command = new RelayCommand(() =>
{
},
() => true);
var canExecuteChangedCalled = 0;
var canExecuteChangedEventHandler = new EventHandler((s, e) => canExecuteChangedCalled++);
command.CanExecuteChanged += canExecuteChangedEventHandler;
command.RaiseCanExecuteChanged(true);
#if SILVERLIGHT
Assert.AreEqual(1, canExecuteChangedCalled);
#else
// In WPF, cannot trigger the CanExecuteChanged event like this
Assert.AreEqual(0, canExecuteChangedCalled);
#endif
command.CanExecuteChanged -= canExecuteChangedEventHandler;
command.RaiseCanExecuteChanged(true);
#if SILVERLIGHT
Assert.AreEqual(1, canExecuteChangedCalled);
#else
// In WPF, cannot trigger the CanExecuteChanged event like this
Assert.AreEqual(0, canExecuteChangedCalled);
#endif
}
public void RegisterPropertyChanged(RelayCommand command)
{
_target.PropertyChanged += (sender, args) =>
{
if (_dependentPropertyNames.Contains(args.PropertyName))
{
command.RaiseCanExecuteChanged();
}
};
}
public void TestCanExecuteChanged()
{
var command = new RelayCommand<string>(
p =>
{
},
p => true);
var canExecuteChangedCalled = 0;
var canExecuteChangedEventHandler = new EventHandler((s, e) => canExecuteChangedCalled++);
command.CanExecuteChanged += canExecuteChangedEventHandler;
command.RaiseCanExecuteChanged();
#if SILVERLIGHT
Assert.AreEqual(1, canExecuteChangedCalled);
#elif NETFX_CORE
Assert.AreEqual(1, canExecuteChangedCalled);
#elif PORTABLE
Assert.AreEqual(1, canExecuteChangedCalled);
#else
// In WPF, cannot trigger the CanExecuteChanged event like this
Assert.AreEqual(0, canExecuteChangedCalled);
#endif
command.CanExecuteChanged -= canExecuteChangedEventHandler;
command.RaiseCanExecuteChanged();
#if SILVERLIGHT
Assert.AreEqual(1, canExecuteChangedCalled);
#elif NETFX_CORE
Assert.AreEqual(1, canExecuteChangedCalled);
#elif PORTABLE
Assert.AreEqual(1, canExecuteChangedCalled);
#else
// In WPF, cannot trigger the CanExecuteChanged event like this
Assert.AreEqual(0, canExecuteChangedCalled);
#endif
}
public MainWindowViewModel()
{
SearchCommand = new RelayCommand(() => OnSearchExecuted(), () => !string.IsNullOrWhiteSpace(_searchText));
ClearCommand = new RelayCommand(() => SeriesCollection.Clear(), () => SeriesCollection.Count > 0);
SerializeCommand = new RelayCommand(OnSerializeExecuted, () => SeriesCollection.Count > 0);
SeriesCollection.CollectionChanged += (s, e) =>
{
ClearCommand.RaiseCanExecuteChanged();
SerializeCommand.RaiseCanExecuteChanged();
};
}
public void TestCanExecuteChanged()
{
var command = new RelayCommand(() =>
{
},
() => true);
var canExecuteChangedCalled = 0;
var canExecuteChangedEventHandler = new EventHandler((s, e) => canExecuteChangedCalled++);
command.CanExecuteChanged += canExecuteChangedEventHandler;
command.RaiseCanExecuteChanged();
Assert.AreEqual(1, canExecuteChangedCalled);
command.CanExecuteChanged -= canExecuteChangedEventHandler;
command.RaiseCanExecuteChanged();
Assert.AreEqual(1, canExecuteChangedCalled);
}
public MainViewModel(IMessageBoxService messageBoxService)
{
_messageBoxService = messageBoxService;
AddItemCommand = new RelayCommand(() =>
{
Items.Add(DateTime.Now.ToString());
EnableSelectionCommand.RaiseCanExecuteChanged();
});
EnableSelectionCommand = new RelayCommand(() =>
{
IsSelectionEnabled = true;
}, () => Items.Count > 0);
DeleteItemsCommand = new RelayCommand<System.Collections.IList>(items =>
{
var itemsToRemove = items
.Cast<string>()
.ToArray();
foreach (var itemToRemove in itemsToRemove)
{
Items.Remove(itemToRemove);
}
EnableSelectionCommand.RaiseCanExecuteChanged();
IsSelectionEnabled = false;
});
BackKeyPressCommand = new RelayCommand<CancelEventArgs>(e =>
{
if (IsSelectionEnabled)
{
IsSelectionEnabled = false;
e.Cancel = true;
}
});
AboutCommand = new RelayCommand(() =>
{
_messageBoxService.Show("Cimbalino Windows Phone Toolkit Bindable Application Bar Sample", "About");
});
Items = new ObservableCollection<string>();
}
//create a dialog that accepts a playlist name and returns the new playlist
public async Task<Playlist> CreateNewPlaylist()
{
Playlist play = new Playlist { PlaylistId = Guid.NewGuid() };
var dialog = new ContentDialog()
{
Title = "New Playlist",
};
var panel = new StackPanel();
var tb = new TextBox
{
PlaceholderText = "Enter the new playlist's name",
Margin = new Windows.UI.Xaml.Thickness { Top = 10 }
};
panel.Children.Add(tb);
dialog.Content = panel;
dialog.PrimaryButtonText = "Save";
var cmd = new RelayCommand(() =>
{
play.PlaylistName = tb.Text;
}, () => CanSave(tb.Text));
dialog.IsPrimaryButtonEnabled = false;
dialog.PrimaryButtonCommand = cmd;
dialog.SecondaryButtonText = "Cancel";
dialog.RequestedTheme = (ElementTheme)new Converters.BooleanToThemeConverter().Convert(Settings.UseDarkTheme, null, null, null);
tb.TextChanged += delegate
{
cmd.RaiseCanExecuteChanged();
if (tb.Text.Trim().Length > 0)
{
dialog.IsPrimaryButtonEnabled = true;
}
else
{
dialog.IsPrimaryButtonEnabled = false;
}
};
var result = await dialog.ShowAsync();
if (result == ContentDialogResult.Primary)
{
return play;
}
return null;
}
public SendEDIDManager_VM()
{
CmdRefashSelectedType = new RelayCommand(OnCmdRefreshSelectedType, CanCmdRefreshSelectedType);
CmdSetSelectedType = new RelayCommand(OnCmdSetSelectedType, CanCmdSetSelectedType);
SenderDisplayInfoList.CollectionChanged += (s, e) =>
{
switch (e.Action)
{
case System.Collections.Specialized.NotifyCollectionChangedAction.Add:
case System.Collections.Specialized.NotifyCollectionChangedAction.Remove:
case System.Collections.Specialized.NotifyCollectionChangedAction.Reset:
case System.Collections.Specialized.NotifyCollectionChangedAction.Replace:
CmdRefashSelectedType.RaiseCanExecuteChanged();
CmdSetSelectedType.RaiseCanExecuteChanged();
break;
default:
break;
}
};
if (this.IsInDesignMode)
{
DataGradViewItem data = new DataGradViewItem();
data.SenderIndex = 0;
data.SerialPort = "COM1";
data.RefreshRate = 60;
data.Reslution = "1024*768";
data.IsChecked = false;
SenderDisplayInfoList.Add(data);
data = new DataGradViewItem();
data.SenderIndex = 1;
data.SerialPort = "COM1";
data.RefreshRate = 60;
data.Reslution = "1024*768";
data.IsChecked = false;
SenderDisplayInfoList.Add(data);
data = new DataGradViewItem();
data.SenderIndex = 2;
data.SerialPort = "COM2";
data.RefreshRate = 60;
data.Reslution = "1024*768";
data.IsChecked = false;
SenderDisplayInfoList.Add(data);
data = new DataGradViewItem();
data.SenderIndex = 3;
data.SerialPort = "COM2";
data.RefreshRate = 60;
data.Reslution = "1024*768";
data.IsChecked = false;
SenderDisplayInfoList.Add(data);
}
else
{
Initialize();
}
}
private void InitializeView()
{
SearchForPositionCommand = new RelayCommand(() =>
{
PositionsFoundHashes.Clear();
var found = _positionService.Find(SearchField);
if (PositionsFound.Count > 0)
{
var index = 0;
do
{
if (PositionsFound[index] == SelectedPosition)
index++;
else
PositionsFound.RemoveAt(index);
} while (index < PositionsFound.Count);
}
foreach(var position in found)
{
if (SelectedPosition == null || position.Id != SelectedPosition.Id)
PositionsFound.Add(position);
}
var hashes = PositionsFound.Select(x => (long)(x.Title + x.Description).GetHashCode());
PositionsFoundHashes.AddRange(hashes);
}, () => { return true; });
SavePositionCommand = new RelayCommand(
() => {
_positionService.Save(SelectedPosition);
PositionsFoundHashes.Clear();
var hashes = PositionsFound.Select(x => (long)(x.Title + x.Description).GetHashCode());
PositionsFoundHashes.AddRange(hashes);
SearchField = SelectedPosition.Title;
SavePositionCommand.RaiseCanExecuteChanged();
}
,() =>
{
var selectedPositionHash = SelectedPosition == null
? new Random().Next()
: (SelectedPosition.Title + SelectedPosition.Description).GetHashCode();
return SelectedPosition != null
&& SelectedPosition.Title != null && SelectedPosition.Title.Length > 1
&& SelectedPosition.Description != null && SelectedPosition.Description.Length > 1
&& !PositionsFoundHashes.Contains(selectedPositionHash);
}
);
ClearPositionCommand = new RelayCommand(() =>
{
PositionsFound.Clear();
SelectedPosition = new Position();
SearchField = "";
});
UpdateCanSaveCommand = new RelayCommand(() =>
{
SavePositionCommand.RaiseCanExecuteChanged();
});
ExpandComboBoxCommand = new RelayCommand(() =>
{
ShowMatchingPositions = true;
});
SelectedPosition = new Position();
PositionsFound = new ObservableCollection<Position>();
}
public TreemapViewModel(TreemapChart treemap, ChartData data, TreemapAlgorithm algo) : this()
{
Treemap = treemap;
Data = data;
Columns = Data.ColumnNames;
Algorithm = algo;
InitParameters();
InitColorViewModels();
SetColorViewModel();
Messenger.Default.Register<PropertyChangedMessageBase>
(
this, true,
(m) =>
{
if (IsDead || !IsSentBySelf(m.Sender))
return;
if (m.PropertyName == "ColorMethod")
SetColorViewModel();
ShowLegendDecimalPlaces = LegendFormatType != FormatType.Text;
if (!LockRefresh)
DrawChart();
}
);
RefreshCommand = new RelayCommand<object>(_ => DrawChart(true));
DeleteCommand = new RelayCommand<object>(
_ =>
{
LockRefresh = true;
Indexes.RemoveAt(Indexes.Count - 1);
Indexes.Last().AsChildIndex();
DeleteCommand.RaiseCanExecuteChanged();
AddCommand.RaiseCanExecuteChanged();
DrawChart();
LockRefresh = false;
},
_ => Indexes.Count > 1);
AddCommand = new RelayCommand<object>(
_ =>
{
LockRefresh = true;
Indexes.Last().AsParentIndex();
string freeColumn = Columns.Where(c => !Indexes.Select(i => i.Column).Contains(c)).First();
Indexes.Add(new TreemapIndexViewModel(freeColumn));
DeleteCommand.RaiseCanExecuteChanged();
AddCommand.RaiseCanExecuteChanged();
DrawChart();
LockRefresh = false;
},
_ => Indexes.Count < Columns.Count);
DrawChart();
}
public FormulaEditorViewModel()
{
KeyPressedCommand = new RelayCommand<FormulaKeyEventArgs>(KeyPressedAction);
ShowErrorPressedCommand = new RelayCommand(ShowErrorPressedAction, ShowErrorPressedCommand_CanExecute);
UndoCommand = new RelayCommand(UndoAction, UndoCommand_CanExecute);
RedoCommand = new RelayCommand(RedoAction, RedoCommand_CanExecute);
SensorCommand = new RelayCommand(SensorAction);
CompleteTokenCommand = new RelayCommand<int>(CompleteTokenAction);
SaveCommand = new RelayCommand(SaveAction);
CancelCommand = new RelayCommand(CancelAction);
Messenger.Default.Register<GenericMessage<Sprite>>(this, ViewModelMessagingToken.CurrentSpriteChangedListener, SelectedSpriteChangedMessageAction);
Messenger.Default.Register<GenericMessage<Program>>(this, ViewModelMessagingToken.CurrentProgramChangedListener, CurrentProgramChangedMessageAction);
_editor.PropertyChanged += (sender, e) =>
{
if (e.PropertyName == GetPropertyName(() => _editor.Formula)) RaisePropertyChanged(() => Formula);
if (e.PropertyName == GetPropertyName(() => _editor.Tokens)) RaisePropertyChanged(() => Tokens);
if (e.PropertyName == GetPropertyName(() => _editor.IsTokensEmpty)) RaisePropertyChanged(() => IsTokensEmpty);
if (e.PropertyName == GetPropertyName(() => _editor.CaretIndex)) RaisePropertyChanged(() => CaretIndex);
if (e.PropertyName == GetPropertyName(() => _editor.SelectionStart)) RaisePropertyChanged(() => SelectionStart);
if (e.PropertyName == GetPropertyName(() => _editor.SelectionLength)) RaisePropertyChanged(() => SelectionLength);
if (e.PropertyName == GetPropertyName(() => _editor.CanUndo))
{
RaisePropertyChanged(() => CanUndo);
UndoCommand.RaiseCanExecuteChanged();
}
if (e.PropertyName == GetPropertyName(() => _editor.CanRedo))
{
RaisePropertyChanged(() => CanRedo);
RedoCommand.RaiseCanExecuteChanged();
}
if (e.PropertyName == GetPropertyName(() => _editor.CanDelete)) RaisePropertyChanged(() => CanDelete);
if (e.PropertyName == GetPropertyName(() => _editor.HasError))
{
RaisePropertyChanged(() => HasError);
ShowErrorPressedCommand.RaiseCanExecuteChanged();
}
if (e.PropertyName == GetPropertyName(() => _editor.HasError)) RaisePropertyChanged(() => CanEvaluate);
if (e.PropertyName == GetPropertyName(() => _editor.ParsingError)) RaisePropertyChanged(() => ParsingError);
};
_keyboardViewModel = ServiceLocator.ViewModelLocator.FormulaKeyboardViewModel;
//_keyboardViewModel.PropertyChanged += (sender, e) =>
//{
// if (e.PropertyName == GetPropertyName(() => _keyboardViewModel.IsAddLocalVariableButtonVisible)) RaisePropertyChanged(() => IsAddLocalVariableButtonVisible);
// if (e.PropertyName == GetPropertyName(() => _keyboardViewModel.IsAddGlobalVariableButtonVisible)) RaisePropertyChanged(() => IsAddGlobalVariableButtonVisible);
//};
_sensorsAreActive = false;
}
