Yeah, it is pretty strange.  It seems to work fine with the Happy
Nomad implementation of ObservableSet I mentioned at the beginning of
my post so I guess I can just stick with that for now.  I just wish I
could figure out a way to configure it globally via Fluent.  Thank you
both for all your help and advice.

Chris

On Aug 25, 6:35 am, José Romaniello <jfromanie...@gmail.com> wrote:
> Chris , this could be a problem of the calling code (maybe wpf), since
> withing a Set we haven't a index for items.. And the event handler of
> "CollectionChanged" want the index of the item that was remove. You could
> see the test here:http://digg.com/u1BO0j(
> removeall_should_raise_collectionchanged_for_removeditems).
>
> I don't know how to set with fluent nhibernate the collection type factory.
>
> For the other hand, 100% AGREE with Fabio.
> For instance the class that Fabio show to you, in "runtime", implements
> INotifyPropertyChanged and IDataErrorInfo.
> There is also another behavior for IEditableObject, actually there are
> two. You could see how I configure the entityhttp://digg.com/u1BO11
>
> 2009/8/25 Fabio Maulo <fabioma...@gmail.com>
>
> > what I mean is that you can do the same without that boiled code.
>
> > 2009/8/25 Chris Willard <chris.will...@rimrockgroup.com>
>
> >> Those interfaces are implemented in my entity base class
> >> (BindableObject) from which GuidPOCO is derived (Section > GuidPOCO >
> >> BindableObject).  I am not familiar with the term boiled code, so I am
> >> not sure how to respond.  Please let me know if you need any
> >> additional info or if I am misunderstanding something.
>
> >> This is how my base class is defined:
>
> >>    public abstract class BindableObject : INotifyPropertyChanged,
> >> IEditableObject, IDataErrorInfo
>
> >> Thanks in advance,
> >> Chris
>
> >> On Aug 24, 10:53 pm, Fabio Maulo <fabioma...@gmail.com> wrote:
> >> > Classes in this domainhttp://
> >> code.google.com/p/unhaddins/source/browse/trunk/Examples/uNHAd...
> >> > <
> >>http://code.google.com/p/unhaddins/source/browse/trunk/Examples/uNHAd..
> >> .>are
> >> > implementing  INotifyPropertyChanged, IEditableObject, IDataErrorInfo...
> >> > but... where is the boiled code ?
>
> >> > how that entities can work in this video ? (see bottom)
> >>http://jfromaniello.blogspot.com/2009/08/nhibernate-and-wpf-viewmodel...
>
> >> > 2009/8/25 Chris Willard <chris.will...@rimrockgroup.com>
>
> >> > > Yeah, I was thinking he wanted to see the entire entity for some
> >> > > reason...
>
> >> > > On Aug 24, 10:06 pm, Fabio Maulo <fabioma...@gmail.com> wrote:
> >> > > > too much boiled code.
>
> >> > > > 2009/8/24 Chris Willard <chris.will...@rimrockgroup.com>
>
> >> > > > > Oh yeah, sorry.  I am calling this extension method to remove the
> >> > > > > item:
>
> >> > > > >        public static void RemoveRange<T>(this ICollection<T>
> >> > > > > collection, IEnumerable<T> items)
> >> > > > >        {
> >> > > > >            if (items != null)
> >> > > > >            {
> >> > > > >                foreach (var item in items)
> >> > > > >                {
> >> > > > >                    collection.Remove(item);
> >> > > > >                }
> >> > > > >            }
> >> > > > >        }
>
> >> > > > > And this is the entity:
>
> >> > > > > using System;
> >> > > > > using System.Collections.Generic;
> >> > > > > using System.Linq;
> >> > > > > using System.Text;
> >> > > > > using RGI.Utilities;
> >> > > > > using RGI.Utilities.Validators;
> >> > > > > using uNhAddIns.WPF.Collections;
>
> >> > > > > namespace RGI.BMS.POCO
> >> > > > > {
> >> > > > >    [Serializable]
> >> > > > >    public class Section : GuidPOCO
> >> > > > >    {
> >> > > > >        #region Constructors
>
> >> > > > >        public Section() : base()
> >> > > > >        {
> >> > > > >            this.SectionNumbers = new
> >> ObservableSet<SectionNumber>();
> >> > > > >        }
>
> >> > > > >        #endregion
>
> >> > > > >        #region Fields
>
> >> > > > >        private string _Name;
> >> > > > >        private Employee _ModifiedBy;
> >> > > > >        private DateTime _ModifiedDate;
> >> > > > >        private ICollection<SectionNumber> _SectionNumbers;
>
> >> > > > >        #endregion
>
> >> > > > >        #region Properties
>
> >> > > > >        public virtual string Name
> >> > > > >        {
> >> > > > >            get { return _Name; }
> >> > > > >            set
> >> > > > >            {
> >> > > > >                _Name = value;
> >> > > > >                NotifyPropertyChanged("Name");
> >> > > > >            }
> >> > > > >        }
>
> >> > > > >        public virtual Employee ModifiedBy
> >> > > > >        {
> >> > > > >            get { return _ModifiedBy; }
> >> > > > >            set
> >> > > > >            {
> >> > > > >                _ModifiedBy = value;
> >> > > > >                NotifyPropertyChanged("ModifiedBy");
> >> > > > >            }
> >> > > > >        }
>
> >> > > > >        public virtual DateTime ModifiedDate
> >> > > > >        {
> >> > > > >            get { return _ModifiedDate; }
> >> > > > >            set
> >> > > > >            {
> >> > > > >                _ModifiedDate = value;
> >> > > > >                NotifyPropertyChanged("ModifiedDate");
> >> > > > >            }
> >> > > > >        }
>
> >> > > > >        public virtual ICollection<SectionNumber> SectionNumbers
> >> > > > >        {
> >> > > > >            get { return _SectionNumbers; }
> >> > > > >            set
> >> > > > >            {
> >> > > > >                _SectionNumbers = value;
> >> > > > >                NotifyPropertyChanged("SectionNumbers");
> >> > > > >            }
> >> > > > >        }
>
> >> > > > >        #endregion
>
> >> > > > >        #region Methods
>
> >> > > > >        public override int GetHashCode()
> >> > > > >        {
> >> > > > >            System.Text.StringBuilder sb = new
> >> > > > > System.Text.StringBuilder();
>
> >> > > > >            sb.Append(this.GetType().FullName);
> >> > > > >            sb.Append(Id);
> >> > > > >            sb.Append(_ModifiedBy);
> >> > > > >            sb.Append(_ModifiedDate);
> >> > > > >            sb.Append(_Name);
>
> >> > > > >            return sb.ToString().GetHashCode();
> >> > > > >        }
>
> >> > > > >        #endregion
>
> >> > > > >        #region Readonly Properties
>
> >> > > > >        public virtual string NumberDisplay
> >> > > > >        {
> >> > > > >            get
> >> > > > >            {
> >> > > > >                StringBuilder bld = new StringBuilder();
>
> >> > > > >                //Get sorted list
> >> > > > >                var numbers = this.SectionNumbers.OrderBy(o =>
> >> > > > > o.Number);
>
> >> > > > >                foreach (var item in numbers)
> >> > > > >                {
> >> > > > >                    bld.Append(item.Number);
> >> > > > >                    if (!numbers.Last().Equals(item))
> >> > > > >                        bld.Append(", ");
> >> > > > >                }
>
> >> > > > >                return bld.ToString();
> >> > > > >            }
> >> > > > >        }
>
> >> > > > >        #endregion
>
> >> > > > >        #region Validation
>
> >> > > > >        public override string this[string columnName]
> >> > > > >        {
> >> > > > >            get { return CheckValidation(this, columnName); }
> >> > > > >        }
>
> >> > > > >        #endregion
> >> > > > >    }
> >> > > > > }
>
> >> > > > > Thanks again for all the help,
> >> > > > > Chris
>
> >> > > > > On Aug 24, 6:54 pm, José Romaniello <jfromanie...@gmail.com>
> >> wrote:
> >> > > > > > Sorry, I want to see the property where you need to put the
> >> > > > > observableset.
> >> > > > > > And the code that you are using to remove an item from that
> >> > > collection.
>
> >> > > > > > 2009/8/24 Chris Willard <chris.will...@rimrockgroup.com>
>
> >> > > > > > > Below is my base entity class.  I have a class (GuidPOCO) that
> >> > > > > > > inherits from BindableObject and just implements an Id
> >> property as
> >> > > a
> >> > > > > > > guid along with some vaidation logic.
>
> >> > > > > > >    /// <summary>
> >> > > > > > >    /// Implements the INotifyPropertyChanged interface and
> >> > > > > > >    /// exposes a NotifyPropertyChanged method for derived
> >> > > > > > >    /// classes to raise the PropertyChange event.  The event
> >> > > > > > >    /// arguments created by this class are cached to prevent
> >> > > > > > >    /// managed heap fragmentation.
> >> > > > > > >    /// </summary>
> >> > > > > > >    [Serializable]
> >> > > > > > >    public abstract class BindableObject :
> >> INotifyPropertyChanged,
> >> > > > > > > IEditableObject, IDataErrorInfo
> >> > > > > > >    {
> >> > > > > > >        #region Data
>
> >> > > > > > >        private static readonly Dictionary<string,
> >> > > > > > > PropertyChangedEventArgs> eventArgCache;
> >> > > > > > >        private const string ERROR_MSG = "{0} is not a public
> >> > > property
> >> > > > > > > of {1}";
> >> > > > > > >        private static readonly object syncLock = new object();
> >> > > > > > >        private HybridDictionary oldState;
>
> >> > > > > > >        #endregion // Data
>
> >> > > > > > >        #region Constructors
>
> >> > > > > > >        static BindableObject()
> >> > > > > > >        {
> >> > > > > > >            eventArgCache = new Dictionary<string,
> >> > > > > > > PropertyChangedEventArgs>();
> >> > > > > > >        }
>
> >> > > > > > >        protected BindableObject()
> >> > > > > > >        {
>
> >> > > > > > >        }
>
> >> > > > > > >        #endregion // Constructors
>
> >> > > > > > >        #region Public Members
>
> >> > > > > > >        /// <summary>
> >> > > > > > >        /// Raised when a public property of this object is
> >> set.
> >> > > > > > >        /// </summary>
> >> > > > > > >        [field: NonSerialized]
> >> > > > > > >        public virtual event PropertyChangedEventHandler
> >> > > > > > > PropertyChanged;
>
> >> > > > > > >        /// <summary>
> >> > > > > > >        /// Returns an instance of PropertyChangedEventArgs for
> >> > > > > > >        /// the specified property name.
> >> > > > > > >        /// </summary>
> >> > > > > > >        /// <param name="propertyName">
> >> > > > > > >        /// The name of the property to create event args for.
> >> > > > > > >        /// </param>
> >> > > > > > >        public
>
> ...
>
> read more »
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