namespace Lepton_Practical_MVVM_4 {
    public enum MyStatusEnum {
        OK =0,
        Cancel =1,
        Delete =2
    }
}

using System.ComponentModel;
using System.Windows.Media;
using System;
using System.Windows.Media.Imaging;

namespace Lepton_Practical_MVVM_4 {

    publicclass MyModel : INotifyPropertyChanged {

        #region Domain Properties private long _ID;
        ///<summary>/// DB Key
        ///</summary>

　　　　 public virtual long ID {
            get {
                return _ID;
            }
            set {
                _ID = value;
                if (PropertyChanged !=null)
                    PropertyChanged(this, new PropertyChangedEventArgs("ID"));
            }
        }

        private MyStatusEnum _Status;
        ///<summary>
　　　　 /// Status
///</summary>
　　　　 public virtual MyStatusEnum Status {

get {
                return _Status;
            }
            set {
                _Status = value;
                if (PropertyChanged !=null)
                    PropertyChanged(this, new PropertyChangedEventArgs("Status"));
            }
        }

        private string _DocNo;
        ///<summary>
string DocNo {

get {
                return _DocNo;
            }
            set {
                _DocNo = value;
                if (PropertyChanged !=null)
                    PropertyChanged(this, new PropertyChangedEventArgs("DocNo"));
            }
        }


        #endregion
　　　　 public virtual ImageSource StatusImage {
            get {
                switch (Status) {
                    case MyStatusEnum.OK:
                        return new BitmapImage(new Uri("pack://application:,,,/Img/Check.png"));
                    case MyStatusEnum.Cancel:
                        return new BitmapImage(new Uri("pack://application:,,,/Img/Cancel.png"));
                    case MyStatusEnum.Delete:
                        return new BitmapImage(new Uri("pack://application:,,,/Img/Delete.png"));
                    default:
                        throw new InvalidEnumArgumentException("MyStatusEnum out of expected range");
                }
            }
        }

        #region INotifyPropertyChanged Members
　　　　 public virtual event PropertyChangedEventHandler PropertyChanged;

        #endregion
    }
}