Convert a helper method into an extension method

BizHawk.Client.EmuHawk/Extensions/ControlExtensions.cs

@@ -22,7 +22,7 @@ namespace BizHawk.Client.EmuHawk.ControlExtensions
 			box.Items.AddRange(
 				EnumHelper.GetDescriptions<T>()
 				.ToArray());
-			box.SelectedItem = EnumHelper.GetDescription(enumVal);
+			box.SelectedItem = enumVal.GetDescription();
 		}
 	}
 }

BizHawk.Client.EmuHawk/config/N64/N64ControllerSettingControl.cs

@@ -78,7 +78,7 @@ namespace BizHawk.Client.EmuHawk
 				{
 					var toSelect = PakTypeDropdown.Items
 						.OfType<object>()
-						.FirstOrDefault(item => item.ToString() == EnumHelper.GetDescription(value));
+						.FirstOrDefault(item => item.ToString() == value.GetDescription());
 					PakTypeDropdown.SelectedItem = toSelect;
 
 					Refresh();

BizHawk.Common/EnumHelper.cs

@@ -8,11 +8,14 @@ namespace BizHawk.Common
 {
 	public static class EnumHelper
 	{
-		public static string GetDescription(object en)
+		/// <summary>
+		/// Gets the description attribute from an object
+		/// </summary>
+		public static string GetDescription(this object obj)
 		{
-			Type type = en.GetType();
+			Type type = obj.GetType();
 
-			var memInfo = type.GetMember(en.ToString());
+			var memInfo = type.GetMember(obj.ToString());
 
 			if (memInfo != null && memInfo.Length > 0)
 			{
@@ -24,7 +27,7 @@ namespace BizHawk.Common
 				}
 			}
 
-			return en.ToString();
+			return obj.ToString();
 		}
 
 		/// <summary>
@@ -63,7 +66,7 @@ namespace BizHawk.Common
 
 			foreach (var v in vals)
 			{
-				yield return GetDescription(v);
+				yield return v.GetDescription();
 			}
 		}
 	}