public void ToggleTestCommand(object param)
{
Console.WriteLine("Clicked! {0}", IsRunning);
if (IsRunning && !WantStop)
{
DispatchNotifySetProperty(() => WantStop, true);
}
else
{
DispatchNotifySetProperty(() => WantStop, false);
task = new Thread(new ThreadStart(BackgroundTask));
task.Start();
}
DispatchNotifySetProperty(() => ToggleTestButtonText, null);
Dispatcher.BeginInvoke(new Action(delegate { TestCommand.NotifyCanExecuteChanged(); }));
}
public void NotifyCanExecuteChanged_FiresCanExecuteChangedEvent()
{
MockCommandHandler <MockArgumentClass> handler = new MockCommandHandler <MockArgumentClass>();
DelegateCommand <MockArgumentClass> command = new DelegateCommand <MockArgumentClass>(handler.Execute, handler.CanExecute);
int canExecuteChangedCount = 0;
command.CanExecuteChanged += (sender, e) =>
{
canExecuteChangedCount++;
};
command.NotifyCanExecuteChanged();
Assert.Equal(1, canExecuteChangedCount);
}
public void NotifyCanExecuteChangedを呼び出すとCanExecuteChangedイベントが発火される()
{
var delegateCommand = new DelegateCommand((parameter) => { return(true); }, (parameter) => { });
bool eventFired = false;
delegateCommand.CanExecuteChanged += (object sender, EventArgs e) =>
{
Assert.AreSame(delegateCommand, sender);
Assert.AreEqual(EventArgs.Empty, e);
eventFired = true;
};
delegateCommand.NotifyCanExecuteChanged();
Assert.IsTrue(eventFired);
}