public override void Dispose()
{
_formatExpression = null;
_getSourceMemberValue = null;
for (int index = 0; index < _sources.Length; index++)
_sources[index].Dispose();
base.Dispose();
}
public void SetValue(BindingActionValue currentValue, object newValue)
{
//it's normal here.
lock (this)
{
if (_currentValue != null && Equals(currentValue.Member, _currentValue.Member) &&
Equals(_currentValue.MemberSource.Target, currentValue.MemberSource.Target))
SetValue(newValue);
else
{
UnsubscribeEventHandler();
currentValue.TrySetValue(new object[] { this }, out _subscriber);
if (_subscriber != null)
{
_currentValue = currentValue;
SetValue(newValue);
}
}
}
}
private void TryRegisterEvent(BindingActionValue bindingActionValue, object newValue, IDataContext context)
{
if (newValue == null && _closure == null)
return;
if (_closure == null)
Interlocked.CompareExchange(ref _closure, new EventClosure(ServiceProvider.WeakReferenceFactory(this)), null);
_closure.LastContext = context;
_closure.SetValue(bindingActionValue, newValue);
}
protected override object GetValueInternal(IBindingMemberInfo targetMember, IDataContext context,
bool throwOnError)
{
if (BindingMemberType.Event.EqualsWithoutNullCheck(targetMember.MemberType))
{
if (_getSourceMemberValue == null)
_getSourceMemberValue = new BindingActionValue(this, BindingMemberInfo.MultiBindingSourceAccessorMember);
return _getSourceMemberValue;
}
return base.GetValueInternal(targetMember, context, throwOnError);
}
private void TryRegisterEvent(BindingActionValue bindingActionValue, object newValue, IDataContext context)
{
if (newValue == null && _closure == null)
return;
if (_closure == null)
Interlocked.CompareExchange(ref _closure,
new EventClosure(_bindingSource, _toggleEnabledState && IsTarget,
Parameters == null ? null : Parameters.CommandParameterDelegate), null);
_closure.LastContext = context;
_closure.SetValue(bindingActionValue, newValue);
}
