From 1007b6f6f02924e872694e390a70f54848d2cfcb Mon Sep 17 00:00:00 2001
From: alcexhim <alcexhim@gmail.com>
Date: Fri, 5 Feb 2016 14:25:39 -0500
Subject: [PATCH] Add Parent property to get parent folder of a File, if
 available

---
 .../ObjectModels/FileSystem/File.cs           | 26 +++++++++++++++++++
 .../ObjectModels/FileSystem/Folder.cs         |  3 ++-
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/CSharp/Libraries/UniversalEditor.Essential/ObjectModels/FileSystem/File.cs b/CSharp/Libraries/UniversalEditor.Essential/ObjectModels/FileSystem/File.cs
index 20617a28..105b5efc 100644
--- a/CSharp/Libraries/UniversalEditor.Essential/ObjectModels/FileSystem/File.cs
+++ b/CSharp/Libraries/UniversalEditor.Essential/ObjectModels/FileSystem/File.cs
@@ -76,6 +76,28 @@ namespace UniversalEditor.ObjectModels.FileSystem
 			{
 				return (this[Name] != null);
 			}
+
+			private Folder mvarParent = null;
+			public FileCollection(Folder parent = null)
+			{
+				mvarParent = parent;
+			}
+
+			protected override void InsertItem(int index, File item)
+			{
+				base.InsertItem(index, item);
+				item.Parent = mvarParent;
+			}
+			protected override void RemoveItem(int index)
+			{
+				this[index].Parent = null;
+				base.RemoveItem(index);
+			}
+			protected override void SetItem(int index, File item)
+			{
+				item.Parent = mvarParent;
+				base.SetItem(index, item);
+			}
 		}
 
 		private FileAttributes mvarAttributes = FileAttributes.None;
@@ -142,6 +164,7 @@ namespace UniversalEditor.ObjectModels.FileSystem
 			{
 				clone.Properties.Add(kvp.Key, kvp.Value);
 			}
+			clone.Parent = mvarParent;
 			return clone;
 		}
 
@@ -244,6 +267,9 @@ namespace UniversalEditor.ObjectModels.FileSystem
 		/// </summary>
 		public FileSource Source { get { return mvarSource; } set { mvarSource = value; } }
 
+		private Folder mvarParent = null;
+		public Folder Parent { get { return mvarParent; } internal set { mvarParent = value; } }
+
 		// The amount of working set to allocate to each block.
 		public const int BLOCK_FRACTION = 4;
 
diff --git a/CSharp/Libraries/UniversalEditor.Essential/ObjectModels/FileSystem/Folder.cs b/CSharp/Libraries/UniversalEditor.Essential/ObjectModels/FileSystem/Folder.cs
index a55d7579..6d9eff77 100644
--- a/CSharp/Libraries/UniversalEditor.Essential/ObjectModels/FileSystem/Folder.cs
+++ b/CSharp/Libraries/UniversalEditor.Essential/ObjectModels/FileSystem/Folder.cs
@@ -77,6 +77,7 @@ namespace UniversalEditor.ObjectModels.FileSystem
 		public Folder()
 		{
 			mvarFolders = new FolderCollection(this);
+			mvarFiles = new File.FileCollection(this);
 		}
 
 		private FolderCollection _parentCollection = null;
@@ -90,7 +91,7 @@ namespace UniversalEditor.ObjectModels.FileSystem
 		private FolderCollection mvarFolders = null;
 		public FolderCollection Folders { get { return mvarFolders; } }
 
-		private File.FileCollection mvarFiles = new File.FileCollection();
+		private File.FileCollection mvarFiles = null;
 		public File.FileCollection Files { get { return mvarFiles; } }
 
 		/// <summary>