--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Source/Reflection/Extension/AttributeNameCollection.cs	Thu Mar 27 21:46:09 2014 +0400
@@ -0,0 +1,104 @@
+using System;
+using System.Collections.Generic;
+
+namespace BLToolkit.Reflection.Extension
+{
+	public class AttributeNameCollection : Dictionary<string,AttributeExtensionCollection>
+	{
+		public new AttributeExtensionCollection this[string attributeName]
+		{
+			get
+			{
+				if (this == _null)
+					return AttributeExtensionCollection.Null;
+
+				AttributeExtensionCollection ext;
+
+				return TryGetValue(attributeName, out ext) ? ext : AttributeExtensionCollection.Null;
+			}
+		}
+
+		public void Add(AttributeExtension attributeExtension)
+		{
+			if (this != _null)
+			{
+				// Add attribute.
+				//
+				AttributeExtensionCollection attr;
+
+				if (!TryGetValue(attributeExtension.Name, out attr))
+					Add(attributeExtension.Name, attr = new AttributeExtensionCollection());
+
+				attr.Add(attributeExtension);
+
+				/*
+				// Convert value type.
+				//
+				bool isType = attributeExtension.Name.EndsWith(TypeExtension.AttrName.TypePostfix);
+
+				if (isType)
+				{
+					string attrName = attributeExtension.Name.Substring(
+						0, attributeExtension.Name.Length - 5);
+
+					AttributeExtensionCollection ext =
+						(AttributeExtensionCollection)_attributes[attrName];
+
+					if (ext != null && ext.Count == 1)
+						ext[0].Values.ChangeValueType(attributeExtension.Value.ToString());
+				}
+				else
+				{
+					string attrName = attributeExtension.Name + TypeExtension.AttrName.TypePostfix;
+
+					AttributeExtensionCollection ext =
+						(AttributeExtensionCollection)_attributes[attrName];
+
+					if (ext != null && ext.Count == 1)
+						attributeExtension.Values.ChangeValueType(ext.Value.ToString());
+				}
+				*/
+			}
+		}
+
+		public void Add(string name, string value)
+		{
+			if (this != _null)
+			{
+				var attrName  = name;
+				var valueName = string.Empty;
+				var idx       = name.IndexOf(TypeExtension.ValueName.Delimiter);
+
+				if (idx > 0)
+				{
+					valueName = name.Substring(idx + 1).TrimStart(TypeExtension.ValueName.Delimiter);
+					attrName  = name.Substring(0, idx);
+				}
+
+				if (valueName.Length == 0)
+					valueName = TypeExtension.ValueName.Value;
+				else if (valueName == TypeExtension.ValueName.Type)
+					valueName = TypeExtension.ValueName.ValueType;
+
+				AttributeExtensionCollection ext;
+
+				if (TryGetValue(attrName, out ext))
+					ext[0].Values.Add(valueName, value);
+				else
+				{
+					var attributeExtension = new AttributeExtension { Name = name };
+
+					attributeExtension.Values.Add(valueName, value);
+
+					Add(attributeExtension);
+				}
+			}
+		}
+
+		private static readonly AttributeNameCollection _null = new AttributeNameCollection();
+		public  static          AttributeNameCollection  Null
+		{
+			get { return _null; }
+		}
+	}
+}