Fix #1685: Add "Always show enum values" setting.

ICSharpCode.Decompiler/CSharp/CSharpDecompiler.cs

@@ -1164,6 +1164,8 @@ namespace ICSharpCode.Decompiler.CSharp
 
 		EnumValueDisplayMode DetectBestEnumValueDisplayMode(ITypeDefinition typeDef, PEFile module)
 		{
+			if (settings.AlwaysShowEnumMemberValues)
+				return EnumValueDisplayMode.All;
 			if (typeDef.HasAttribute(KnownAttribute.Flags, inherit: false))
 				return EnumValueDisplayMode.All;
 			bool first = true;

ICSharpCode.Decompiler/DecompilerSettings.cs

@@ -537,6 +537,26 @@ namespace ICSharpCode.Decompiler
 			}
 		}
 
+		bool alwaysShowEnumMemberValues = false;
+
+		/// <summary>
+		/// Gets/Sets whether to always show enum member values.
+		/// true: <c>enum Kind { A = 0, B = 1, C = 5 }</c>
+		/// false: <c>enum Kind { A, B, C = 5 }</c>
+		/// default: false
+		/// </summary>
+		[Category("Other")]
+		[Description("DecompilerSettings.AlwaysShowEnumMemberValues")]
+		public bool AlwaysShowEnumMemberValues {
+			get { return alwaysShowEnumMemberValues; }
+			set {
+				if (alwaysShowEnumMemberValues != value) {
+					alwaysShowEnumMemberValues = value;
+					OnPropertyChanged();
+				}
+			}
+		}
+
 		bool useDebugSymbols = true;
 
 		/// <summary>

ILSpy/Properties/Resources.Designer.cs

@@ -511,6 +511,15 @@ namespace ICSharpCode.ILSpy.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Always show enum member values.
+        /// </summary>
+        public static string DecompilerSettings_AlwaysShowEnumMemberValues {
+            get {
+                return ResourceManager.GetString("DecompilerSettings.AlwaysShowEnumMemberValues", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Always use braces.
         /// </summary>

ILSpy/Properties/Resources.resx

@@ -754,4 +754,7 @@ Are you sure you want to continue?</value>
   <data name="DecompilerSettings.RemoveDeadStores" xml:space="preserve">
     <value>Remove dead stores (use with caution!)</value>
   </data>
+  <data name="DecompilerSettings.AlwaysShowEnumMemberValues" xml:space="preserve">
+    <value>Always show enum member values</value>
+  </data>
 </root>