gistfile1.txt

   private int position;
   public int Position
        {
            get
            {
                return this.position;
            }
            set
            {
               if (value != this.position)
                {
                   this.position = value;
                   OnPropertyChanged("Position");
                }
            }
        
        
         public void ConfigurePosition(ObservableCollection<Chapter> ChapterCollection)

        {

            foreach(Chapter chapter in ChapterCollection)

            {

                chapter.Position = ChapterCollection.IndexOf(chapter) + 1;

            }

        }
        
        
            <dxg:GridControl x:Name="SidePanel" AllowLiveDataShaping="True" SelectionMode="Cell" ItemsSource="{Binding}">

        <dxg:GridControl.Columns>

            <dxg:GridColumn Header="Position" ReadOnly="True">

                <dxg:GridColumn.DisplayMemberBinding>

                    <Binding Path="Position"/>