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      *
 *  FILES OR ANY PORTION OF ITS CONTENTS SHALL AT NO TIME BE        *
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 *  AGREEMENT FOR INFORMATION ON ADDITIONAL RESTRICTIONS.           *
 ********************************************************************/

using System;
using System.Collections.Generic;
using System.Windows.Controls;
using System.Windows.Media.Imaging;
using Framework.Silverlight.Client.AppServer;

namespace Framework.Silverlight.Client
{
  /// <summary>
  /// Provides logic for creating and initializing Section
  /// UI items using information from Sections metadata.
  /// </summary>
  public class CxSectionUiProvider
  {
    /// <summary>
    /// Returns list of the UI items which will are initialized by section metadata.
    /// </summary>
    /// <param name="sectionsMetadata">The list of CxSection items for UI items initializing.</param>
    /// <returns>List of the UI items that are initialized using CxSectionMetadata metadata.</returns>
    public List<Control> GetUiItemsList(IEnumerable<CxSection> sectionsMetadata)
    {
      List<Control> items = new List<Control>();
      foreach (CxSection section in sectionsMetadata)
      {
        if (section.SectionMetadata.Visible)
          items.Add(GetUiItem(section));
      }
      return items;
    }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Returns UI item that will be initialized by section metadata.
    /// </summary>
    /// <param name="sectionMetadata">The CxSection item for UI item initializing.</param>
    /// <returns>Instance of UI item that initialized using section metadata.</returns>
    public Control GetUiItem(CxSection sectionMetadata)
    {
      Control uiInstance = CreateUiItem(sectionMetadata);
      InitUiItem(uiInstance, sectionMetadata);
      return uiInstance;
    }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Creates UI item using section metadata.
    /// </summary>
    /// <param name="sectionMetadata">The instance of CxSection for UI item creating.</param>
    /// <returns>Instance of UI item that created by CxSection .</returns>
    protected virtual Control CreateUiItem(CxSection sectionMetadata)
    {
      return new CxToolBoxItem();
    }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Initializes UI item using section metadata.
    /// </summary>
    /// <param name="uiItem">The instance of UI item that need
    /// to initialize by section metadata. </param>
    /// <param name="sectionMetadata">The istance of CxSection for UI item initializing.</param>
    protected virtual void InitUiItem(Control uiItem, CxSection sectionMetadata)
    {
      CxToolBoxItem item = (CxToolBoxItem) uiItem;
      item.Text = sectionMetadata.SectionMetadata.Text;
      item.SectionId = sectionMetadata.SectionMetadata.Id;
      if (!string.IsNullOrEmpty(sectionMetadata.SectionMetadata.ImageId))
      {
        string imageId = sectionMetadata.SectionMetadata.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);
        item.Image.Source = new BitmapImage(new Uri(imageProvider[image.ImageIndex], UriKind.RelativeOrAbsolute));
      }

      CxTreeItemUiProvider treeItemUiProvider = new CxTreeItemUiProvider();
      CxTreeView treeView = new CxTreeView();
      treeItemUiProvider.Tree = treeView;
      //treeView.tvMain.EnableLines = true;
      foreach (CxTreeItem treeItem in sectionMetadata.TreeItems)
      {
        if (treeItem.TreeItemMetadata.Visible)
        {
          CxNode node = (CxNode) treeItemUiProvider.GetUiItem(treeItem);
          treeView.tvMain.Nodes.Add(node);
          item.TreeView = treeView;
        }
      }
      treeItemUiProvider.Tree = null;

     
    }
   
  }
}