Using Silverlight in Enterprise: RAD of User Friendly Database Access

/********************************************************************
 *  FulcrumWeb RAD Framework - Fulcrum of your business             *
 *  Copyright (c) 2002-2009 FulcrumWeb, ALL RIGHTS RESERVED         *
 *                                                                  *
 *  THE SOURCE CODE CONTAINED WITHIN THIS FILE AND ALL RELATED      *
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 *  AGREEMENT FOR INFORMATION ON ADDITIONAL RESTRICTIONS.           *
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using System;
using System.Collections.Generic;
using System.Windows.Media.Imaging;
using Framework.Silverlight.Client.AppServer;

namespace Framework.Silverlight.Client
{
  /// <summary>
  /// Class representing marked entity information.
  /// </summary>
  public class CxEntityMark
  {
    private bool m_IsDeleted;
    //----------------------------------------------------------------------------
    /// <summary>
    /// Occurs when IsDeleted property has changes.
    /// </summary>
    public event EventHandler IsDeletedChanged;
    //----------------------------------------------------------------------------
    /// <summary>
    /// Gets Id if entity usage, apropriated with the mark.
    /// </summary>
    public string EntityUsageId { get; private set;}
    //----------------------------------------------------------------------------
    /// <summary>
    /// Gets primary key values encoded into the string.
    /// </summary>
    public string PrimaryKeyText { get; private set; }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Gets or entity display name.
    /// </summary>
    public string Name { get; private set; }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Gets or entity image.
    /// </summary>
    public BitmapImage ImageSource { get; private set; }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Gets one of NxOpenMode.
    /// </summary>
    public NxOpenMode OpenMode { get; private set; }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Returns unique ID to identify within application.
    /// </summary>
    public string UniqueId { get; private set; }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Returns primary key values array.
    /// </summary>
    public List<object> PrimaryKeyValues { get; private set; }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Returns entity mark type.
    /// </summary>
    public string MarkType { get; private set; }
    //----------------------------------------------------------------------------
    /// <summary>
    /// True if entity mark is deleted.
    /// </summary>
    public bool IsDeleted
    {
      get { return m_IsDeleted; }
      set
      {
        if (value != m_IsDeleted)
        {
          m_IsDeleted = value;
          if(IsDeletedChanged != null)
          {
            IsDeletedChanged(this, EventArgs.Empty);
          }
        }
      }
    }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Parametrized ctor.
    /// </summary>
    /// <param name="mark">CxClientEntityMark to initialize the instance</param>
    public CxEntityMark(CxClientEntityMark mark)
    {
      EntityUsageId = mark.EntityUsageId;
      PrimaryKeyText = mark.PrimaryKeyText;
      Name = mark.Name;
      if (!string.IsNullOrEmpty(mark.ImageId))
      {
        string imageId = mark.ImageId.ToUpper();
        CxClientImageMetadata image;
        if (!CxAppContext.Instance.ImagesMetadata.TryGetValue(imageId, out image))
          throw new ExApplicationException(string.Format("Image <{0}> was not present in the images metadata", imageId));
        IxImageProvider imageProvider = (IxImageProvider)CxTypeActivator.CreateInstance(image.ProviderClassId);
        ImageSource = new BitmapImage(new Uri(imageProvider[image.ImageIndex], UriKind.RelativeOrAbsolute));
      }
      OpenMode = (NxOpenMode)Enum.Parse(typeof (NxOpenMode), mark.OpenMode, true);
      UniqueId = mark.UniqueId;
      PrimaryKeyValues = new List<object>();
      PrimaryKeyValues.AddRange(mark.PrimaryKeyValues);
      mark.PrimaryKeyValues.Clear();
      MarkType = mark.MarkType;
    }
  }
}