Added rough support for attaching messages to errors.

NSspi/EnumMgr.cs

@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+
+namespace NSspi
+{
+    [AttributeUsage( AttributeTargets.Enum )]
+    public class EnumStringAttribute : Attribute
+    {
+        public EnumStringAttribute( string text )
+        {
+            this.Text = text;
+        }
+
+        public string Text { get; private set; }
+    }
+
+    public class EnumMgr
+    {
+        public static string Text( Enum value )
+        {
+            FieldInfo field = value.GetType().GetField( value.ToString() );
+
+            EnumStringAttribute[] attribs = (EnumStringAttribute[])field.GetCustomAttributes( typeof( EnumStringAttribute ), false );
+
+            if( attribs == null || attribs.Length == 0 )
+            {
+                return null;
+            }
+            else
+            {
+                return attribs[0].Text;
+            }
+        }
+
+        public static T Enum<T>( string text )
+        {
+            FieldInfo[] fields = typeof( T ).GetFields();
+
+            EnumStringAttribute[] attribs;
+
+            foreach( FieldInfo field in fields )
+            {
+                attribs = (EnumStringAttribute[])field.GetCustomAttributes( typeof( EnumStringAttribute ), false );
+
+                foreach( EnumStringAttribute attrib in attribs )
+                {
+                    if( attrib.Text == text )
+                    {
+                        return (T)field.GetValue( null );
+                    }
+                }
+            }
+
+            throw new ArgumentException( "Could not find a matching enumeration value for the text '" + text + "'." );
+        }
+    }
+}