public MergedAttributeCollection(MergePropertyDescriptor owner) : base((Attribute[])null) {
     this.owner = owner;
 }
 public MultiPropertyDescriptorGridEntry(PropertyGrid ownerGrid, GridEntry peParent, object[] objectArray, PropertyDescriptor[] propInfo, bool hide) 
 : base (ownerGrid, peParent, hide) {
     mergedPd = new MergePropertyDescriptor(propInfo);
     this.objs = objectArray;
     base.Initialize(mergedPd);
 }