protected override bool SendNotification(object owner, Notify notification)
{
if (owner is ICustomTypeDescriptor descriptor)
{
owner = descriptor.GetPropertyOwner(PropertyDescriptor);
}
switch (notification)
{
case Notify.Reset:
object[] objects = (object[])owner;
if (objects is null || objects.Length == 0)
{
return(false);
}
IDesignerHost host = DesignerHost;
DesignerTransaction transaction = host?.CreateTransaction(string.Format(SR.PropertyGridResetValue, PropertyName));
try
{
bool needChangeNotify = objects[0] is not IComponent component || component.Site is null;
if (needChangeNotify)
{
if (!OnComponentChanging())
{
transaction?.Cancel();
transaction = null;
return(false);
}
}
_mergedDescriptor.ResetValue(owner);
if (needChangeNotify)
{
OnComponentChanged();
}
NotifyParentsOfChanges(this);
}
finally
{
transaction?.Commit();
}
return(false);
case Notify.DoubleClick:
case Notify.Return:
Debug.Assert(PropertyDescriptor is MergePropertyDescriptor, "Did not get a MergePropertyDescriptor!!!");
Debug.Assert(owner is object[], "Did not get an array of objects!!");
if (PropertyDescriptor is MergePropertyDescriptor mergeDescriptor)
{
_eventBindings ??= this.GetService <IEventBindingService>();
if (_eventBindings is not null)
{
EventDescriptor eventDescriptor = _eventBindings.GetEvent(mergeDescriptor[0]);
if (eventDescriptor is not null)
{
return(ViewEvent(owner, null, eventDescriptor, true));
}
}
return(false);
}
else
{
return(base.SendNotification(owner, notification));
}
}
return(base.SendNotification(owner, notification));
}
internal override bool NotifyValueGivenParent(object obj, int type)
{
if (obj is ICustomTypeDescriptor)
{
obj = ((ICustomTypeDescriptor)obj).GetPropertyOwner(_propertyInfo);
}
switch (type)
{
case NOTIFY_RESET:
object[] objects = (object[])obj;
if (objects != null && objects.Length > 0)
{
IDesignerHost host = DesignerHost;
DesignerTransaction trans = null;
if (host != null)
{
trans = host.CreateTransaction(string.Format(SR.PropertyGridResetValue, PropertyName));
}
try
{
bool needChangeNotify = !(objects[0] is IComponent) || ((IComponent)objects[0]).Site is null;
if (needChangeNotify)
{
if (!OnComponentChanging())
{
if (trans != null)
{
trans.Cancel();
trans = null;
}
return(false);
}
}
mergedPd.ResetValue(obj);
if (needChangeNotify)
{
OnComponentChanged();
}
NotifyParentChange(this);
}
finally
{
if (trans != null)
{
trans.Commit();
}
}
}
return(false);
case NOTIFY_DBL_CLICK:
case NOTIFY_RETURN:
Debug.Assert(_propertyInfo is MergePropertyDescriptor, "Did not get a MergePropertyDescriptor!!!");
Debug.Assert(obj is object[], "Did not get an array of objects!!");
if (_propertyInfo is MergePropertyDescriptor mpd)
{
object[] objs = (object[])obj;
if (_eventBindings is null)
{
_eventBindings = (IEventBindingService)GetService(typeof(IEventBindingService));
}
if (_eventBindings != null)
{
EventDescriptor descriptor = _eventBindings.GetEvent(mpd[0]);
if (descriptor != null)
{
return(ViewEvent(obj, null, descriptor, true));
}
}
return(false);
}
else
{
return(base.NotifyValueGivenParent(obj, type));
}
}
return(base.NotifyValueGivenParent(obj, type));
}
protected internal override bool NotifyValueGivenParent(object @object, Notify type)
{
if (@object is ICustomTypeDescriptor descriptor)
{
@object = descriptor.GetPropertyOwner(_propertyInfo);
}
switch (type)
{
case Notify.Reset:
object[] objects = (object[])@object;
if (objects is not null && objects.Length > 0)
{
IDesignerHost host = DesignerHost;
DesignerTransaction transaction = host?.CreateTransaction(string.Format(SR.PropertyGridResetValue, PropertyName));
try
{
bool needChangeNotify = objects[0] is not IComponent component || component.Site is null;
if (needChangeNotify)
{
if (!OnComponentChanging())
{
transaction?.Cancel();
transaction = null;
return(false);
}
}
_mergedDescriptor.ResetValue(@object);
if (needChangeNotify)
{
OnComponentChanged();
}
NotifyParentChange(this);
}
finally
{
transaction?.Commit();
}
}
return(false);
case Notify.DoubleClick:
case Notify.Return:
Debug.Assert(_propertyInfo is MergePropertyDescriptor, "Did not get a MergePropertyDescriptor!!!");
Debug.Assert(@object is object[], "Did not get an array of objects!!");
if (_propertyInfo is MergePropertyDescriptor mpd)
{
_eventBindings ??= this.GetService <IEventBindingService>();
if (_eventBindings is not null)
{
EventDescriptor eventDescriptor = _eventBindings.GetEvent(mpd[0]);
if (eventDescriptor is not null)
{
return(ViewEvent(@object, null, eventDescriptor, true));
}
}
return(false);
}
else
{
return(base.NotifyValueGivenParent(@object, type));
}
}
return(base.NotifyValueGivenParent(@object, type));
}
