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/ Computer Shopper 235 / Issue 235 - September 2007 - DPCS0907DVD.ISO / Microsoft / Expression Blend / Blend.en.msi / Sparkle.PBook.ImageCollection.cs.en < prev    next >
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Text File  |  2007-03-19  |  3.7 KB  |  78 lines
  1.  ■using System.Collections.ObjectModel;
  3. using System;
  5. using System.IO;
  7. using System.Windows;
  11. namespace PhotoBook
  13. {
  15.     /// <summary>
  17.     /// Data Model that holds the images of the pages.
  19.     /// </summary>
  21.     public class ImageCollection
  23.     {
  25.         private ObservableCollection<string> images = new ObservableCollection<string>();
  27.         private string location;
  31.         public ImageCollection()
  33.         {
  35.         }
  39.         #region Public Attributes
  43.         public ObservableCollection<string> Images
  45.         {
  47.             get { return this.images; }
  49.         }
  53.         public string Location
  55.         {
  57.             get { return this.location; }
  59.             set
  61.             {
  63.                 this.location = value;
  65.                 this.Reload();
  67.             }
  69.         }
  73.         public string FirstImage
  75.         {
  77.             get
  79.             {
  81.                 if (this.Images.Count != 0)
  83.                 {
  85.                     return this.Images[0];
  87.                 }
  89.                 else
  91.                 {
  93.                     return "";
  95.                 }
  97.             }
  99.         }
  103.         #endregion
  107.         private void Reload()
  109.         {
  111.             this.images.Clear();
  115.             if (Directory.Exists(this.location))
  117.             {
  119.                 DirectoryInfo dir = new DirectoryInfo(this.location);
  121.                 foreach (FileInfo file in dir.GetFiles("*.*", SearchOption.AllDirectories))
  123.                 {
  125.                     if (this.IsImage(file))
  127.                         this.images.Add(file.FullName);
  129.                 }
  131.             }
  133.         }
  137.         private bool IsImage(FileInfo file)
  139.         {
  141.             String ext = file.Extension.ToLower();
  143.             if (ext == ".jpg" || ext == ".gif" || ext == ".png")
  145.                 return true;
  147.             return false;
  149.         }
  151.     }
  153. }