public ObservableCommand(IObservable <bool> canExecute)
{
canExecute
.DistinctUntilChanged()
.Subscribe(x =>
{
_canExecute = x;
CanExecuteChanged.SafeInvoke(this);
});
_canExecute = false;
}
/// <summary>
/// Raises the <see cref="CanExecuteChanged"/> event.
/// </summary>
public virtual void RaiseCanExecuteChanged()
{
AutoDispatchIfRequiredAsync(async() =>
{
try
{
CanExecuteChanged.SafeInvoke(this);
}
catch (Exception ex)
{
Log.Warning(ex, "Failed to raise CanExecuteChanged");
}
});
}
/// <summary>
/// Raises the <see cref="CanExecuteChanged"/> event.
/// </summary>
public void RaiseCanExecuteChanged()
{
var action = new Action(() =>
{
#if NET
foreach (var handler in _subscribedEventHandlers)
{
handler.SafeInvoke(this);
}
CommandManager.InvalidateRequerySuggested();
#else
CanExecuteChanged.SafeInvoke(this);
#endif
});
AutoDispatchIfRequired(action);
}
public void RaiseCanExecuteChanged()
{
CanExecuteChanged.SafeInvoke(this);
}
/// <summary>
/// Raises the <see cref="CanExecuteChanged"/> event.
/// </summary>
public virtual void RaiseCanExecuteChanged()
{
AutoDispatchIfRequiredAsync(async() => CanExecuteChanged.SafeInvoke(this));
}
