private void Detach()
{
if (_attached)
{
var binder = CommandBindingManager.FindBinder(SourceObject as IComponent);
binder.Dettach(Command, SourceObject, _sourceEvent);
}
}
private void Attach()
{
if (!_attached && Command != null && _validEvent)
{
var binder = CommandBindingManager.FindBinder(SourceObject as IComponent);
binder.Attach(Command, SourceObject, _sourceEvent);
_attached = true;
}
}
/// <summary>
/// Verifies whether the event is valid on the source object.
/// </summary>
private void VerifyEventValid()
{
if (!_validEvent)
{
var binder = CommandBindingManager.FindBinder(SourceObject as IComponent);
if (binder.InputEvents.All(evt => SourceEvent != evt))
{
throw new InvalidEventException();
}
}
_validEvent = true;
}
public CommandBindingCollection(CommandBindingManager commandBindingManager)
{
Debug.Assert(commandBindingManager != null);
_commandBindingManager = commandBindingManager;
}