Bonjour!

Voici ma classe parent : BusinessBase

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    [Serializable]
    public abstract class BusinessBase : ICloneable
    {
        #region Private Properties
        private Hashtable brokenRules;
        #endregion
 
        #region Constructors
        public BusinessBase()
        {
            brokenRules = new Hashtable();
        }
        #endregion
 
        ....
 
        #region Methods
        protected abstract void Initialize();
        protected abstract void Initialize(BusinessBase businessBase);
        protected abstract void Initialize(DataRow row);
        public abstract override string ToString();
        public abstract object Clone();
        #endregion
 
        #region SQL Methods
        protected abstract void Load(int id);
        protected abstract void Save();
        protected abstract void Delete();
        #endregion
    }
et un exemple de classe qui hérite de BusinessBase

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    public class FeatureType : BusinessBase
    {
        #region Private Properties
        private int _featureTypeId;
        private string _featureTypeName;
        private int _featureTypePosition;
        private bool _featureTypeHasFeatures;
        #endregion
 
        #region Constructors
        public FeatureType() : 
            base()
        {
            Initialize();
        }
 
        public FeatureType(FeatureType featureType) :
            base()
        {
            Initialize(featureType);
        }
 
        public FeatureType(DataRow row) :
            base()
        {
            Initialize(row);
        }
 
        public FeatureType(int featureTypeId) : 
            base()
        {
            Load(featureTypeId);
        }
        #endregion
 
        ...
 
        #region Methods
        protected override void Initialize()
        {
             ...
        }
 
        protected override void Initialize(FeatureType featureType)
        {
            this._featureTypeId = 0;
            this.FeatureTypeName = featureType.FeatureTypeName;
            this.FeatureTypePosition = featureType.FeatureTypePosition;
            this.FeatureTypeHasFeatures = featureType.FeatureTypeHasFeatures;
        }
 
        protected override void Initialize(DataRow row)
        {
             ...
        }
 
        public override string ToString()
        {
            return String.Format("FeatureType : [{0}, {1}, {2}, {3}]",
                this.FeatureTypeId,
                this.FeatureTypeName,
                this.FeatureTypePosition,
                this.FeatureTypeHasFeatures);
        }
 
        public override object Clone()
        {
            return new FeatureType(this);
        }
        #endregion
 
        #region SQL Methods
        protected override void Load(int airpotId)
        {
             ...
        }
 
        protected override void Save()
        {
             ...
        }
 
        protected override void Delete()
        {
             ...
        }
        #endregion
    }
Et ma question... Comment se fait-il que je reçoive l'erreur suivante ?

'Feature' does not implement inherited abstract member 'BusinessBase.Initialize(BusinessBase)'
Le paramètre de la méthode Initialize(FeatureType featureType) recoit bel et bien un parametre de type "enfant de" BusinessBase... Qu'est-ce qui se passe?

Merci de vos éclaircissements!!