EnumUtilities by Fabricio Godoy

• NuGet / site data
• Details
  • Info
  • Original Readme
• Compatibility
• Quickstart
• Guide
  • EnumMemberAttribute
  • DescriptionAttribute
  • DisplayAttribute
  • JSON Serialization
• Contributing
• License
  • About
• How to use
  • Example (source csproj, source files)
  • Generated Files
• Useful
  • Download Example (.NET C#)
  • Share EnumUtilities
  • Category "Enum" has the following generators:
  • See category

NuGet / site data

Details

Info

info

Name: EnumUtilities

Provides generic enum functions such as bitwise operations, fast HasFlag, and others.

Author: Fabricio Godoy

NuGet: https://www.nuget.org/packages/Raiqub.Generators.EnumUtilities/

You can find more details at https://github.com/skarllot/EnumUtilities

Source: https://github.com/skarllot/EnumUtilities

Original Readme

note

Enum Utilities

A source generator for C# that uses Roslyn to create extensions and parsers for enumerations

🏃 Quickstart   |   📗 Guide   |   📦 NuGet

---

A source generator for C# that uses Roslyn to create extensions and parsers for enumerations, allowing to get a value associated to enum member or parse back from attribute value to enum member. All code generated at compile time thus avoid using reflection or boilerplate code.

Compatibility

Raiqub.Generators.EnumUtilities runs with Roslyn compiler so does not introduce a new dependency to your project besides a library containing the EnumGenerator attribute.

It requires at least the .NET 6 SDK to run, but you can target earlier frameworks.

Quickstart

Add the package to your application using

dotnet add package Raiqub.Generators.EnumUtilities

Adding the package will automatically add a marker attribute, [EnumGenerator], to your project.

To use the generator, add the [EnumGenerator] attribute to an enum. For example:

[EnumGenerator]
public enum Categories
{
   Electronics,
   Food,
   Automotive,
   Arts,
   BeautyCare,
   Fashion
}

This will generate 3 classes with the following methods:

• CategoriesExtensions
  • ToStringFast(this Categories)
  • IsDefined(this Categories)
  • InterlockedAdd(this ref Categories, int)
  • InterlockedDecrement(this ref Categories)
  • InterlockedIncrement(this ref Categories)
  • InterlockedCompareExchange(this ref Categories, Categories, Categories)
  • InterlockedExchange(this ref Categories, Categories)
• CategoriesFactory
  • TryParse(string?, StringComparison, out Categories)
  • TryParseIgnoreCase(string?, out Categories)
  • TryParse(string?, out Categories)
  • TryParse(string?, StringComparison)
  • TryParseIgnoreCase(string?)
  • TryParse(string?)
  • GetValues()
  • GetNames()
• CategoriesValidation
  • IsDefined(Categories)
  • IsDefined(string?, StringComparison)
  • IsDefinedIgnoreCase(string?)
  • IsDefined(string?)

Bit flags enums are supported too:

[Flags]
[EnumGenerator]
public enum Colours
{
    Red = 1,
    Blue = 2,
    Green = 4,
}

Then 3 classes will be generated with the following methods:

• ColoursExtensions
  • ToStringFast(this Colours)
  • IsDefined(this Colours)
  • InterlockedAnd(this ref Colours, Colours)
  • InterlockedOr(this ref Colours, Colours)
  • InterlockedCompareExchange(this ref Colours, Colours, Colours)
  • InterlockedExchange(this ref Colours, Colours)
• ColoursFactory
  • TryParse(string?, StringComparison, out Colours)
  • TryParse(string?, out Colours)
  • TryParseIgnoreCase(string?, out Colours)
  • TryParse(string?)
  • TryParseIgnoreCase(string?)
  • TryParse(string?, StringComparison)
  • GetValues()
  • GetNames()
• ColoursValidation
  • IsDefined(Colours)
  • IsDefined(string?, StringComparison)
  • IsDefinedIgnoreCase(string?)
  • IsDefined(string?)

All generated code are properly nullable annotated and removed from code coverage.

Guide

The following attributes are supported:

EnumMemberAttribute

Example:

[EnumGenerator]
public enum PaymentMethod
{
    [EnumMember(Value = "Credit card")]
    Credit,
    [EnumMember(Value = "Debit card")]
    Debit,
    Cash,
    Cheque
}

This will generate the following methods:

• PaymentMethodExtensions
  • ToEnumMemberValue(this PaymentMethod)
• PaymentMethodFactory
  • TryParseFromEnumMemberValue(string?, StringComparison, out PaymentMethod)
  • TryParseFromEnumMemberValue(string?, out PaymentMethod)
  • TryParseFromEnumMemberValue(string?, StringComparison)
  • TryParseFromEnumMemberValue(string?)

DescriptionAttribute

Example:

[EnumGenerator]
public enum PaymentMethod
{
    Credit,
    Debit,
    [Description("The payment by using physical cash")]
    Cash,
    Cheque
}

This will generate the following methods:

• PaymentMethodExtensions
  • GetDescription(this PaymentMethod)
• PaymentMethodFactory
  • TryCreateFromDescription(string?, StringComparison, out PaymentMethod)
  • TryCreateFromDescription(string?, out PaymentMethod)
  • TryCreateFromDescription(string?, StringComparison)
  • TryCreateFromDescription(string?)

DisplayAttribute

Example:

[EnumGenerator]
public enum WeekDays
{
    [Display(
        Name = nameof(Strings.MondayFull),
        ShortName = nameof(Strings.MondayShort),
        Description = nameof(Strings.MondayDescription),
        ResourceType = typeof(Strings))]
    Monday,
    [Display(ShortName = "Tue")]
    Tuesday,
    [Display]
    Wednesday,
    [Display(Name = "Thursday")]
    Thursday,
    [Display(Name = "Friday", ShortName = "Fri")]
    Friday,
    [Display(ShortName = "Sat", Description = "Almost the last day of the week")]
    Saturday,
    [Display(Description = "The last day of the week")]
    Sunday
}

Note that if ResourceType is provided the generated code will correctly get the value from resource.

This will generate the following methods:

• WeekDaysExtensions
  • GetDisplayShortName(this WeekDays)
  • GetDisplayName(this WeekDays)
  • GetDescription(this WeekDays)
• WeekDaysFactory
  • TryCreateFromDisplayShortName(string?, StringComparison, out WeekDays)
  • TryCreateFromDisplayShortName(string?, out WeekDays)
  • TryCreateFromDisplayShortName(string?, StringComparison)
  • TryCreateFromDisplayShortName(string?)
  • TryCreateFromDisplayName(string?, StringComparison, out WeekDays)
  • TryCreateFromDisplayName(string?, out WeekDays)
  • TryCreateFromDisplayName(string?, StringComparison)
  • TryCreateFromDisplayName(string?)
  • TryCreateFromDescription(string?, StringComparison, out WeekDays)
  • TryCreateFromDescription(string?, out WeekDays)
  • TryCreateFromDescription(string?, StringComparison)
  • TryCreateFromDescription(string?)

JSON Serialization

Besides the member name, supports the EnumMemberAttribute and JsonPropertyNameAttribute attributes.

Example:

[JsonConverterGenerator]
[JsonConverter(typeof(SeasonJsonConverter))]
public enum Season
{
    [EnumMember(Value = "\ud83c\udf31")]
    Spring = 1,
    [EnumMember(Value = "\u2600\ufe0f")]
    Summer,
    [EnumMember(Value = "\ud83c\udf42")]
    Autumn,
    [EnumMember(Value = "\u26c4")]
    Winter
}

This will generate the following JSON converter: SeasonJsonConverter.

Contributing

If something is not working for you or if you think that the source file should change, feel free to create an issue or Pull Request. I will be happy to discuss and potentially integrate your ideas!

License

See the LICENSE file for details.

About

note

Enum to string- and multiple other extensions for an enum

How to use

Example (source csproj, source files)

CSharp Project

This is the CSharp Project that references EnumUtilities

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Raiqub.Generators.EnumUtilities" Version="1.6.14" />
  </ItemGroup>
</Project>

Program.cs

This is the use of EnumUtilities in Program.cs

using EnumClassDemo;
Console.WriteLine(Colors.None.ToStringFast());
Console.WriteLine(Colors.None.ToEnumMemberValue());

Colors.cs

This is the use of EnumUtilities in Colors.cs

using Raiqub.Generators.EnumUtilities;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Runtime.Serialization;
using System.Text.Json.Serialization;

namespace EnumClassDemo;
[EnumGenerator]
[Flags]
//[JsonConverterGenerator]
//[JsonConverter(typeof(ColorJsonConverter))]
public enum Colors
{
    //[Display(ShortName = "This should be never seen")]
    [EnumMember(Value = "This should be never seen")]
    None =0,
    Red=1,
    Green=2,
    Blue=4,
}

Generated Files

Those are taken from $(BaseIntermediateOutputPath)\GX

EnumClassDemo.ColorsExtensions.g.cs

// <auto-generated />
#nullable enable

using System;
using System.Runtime.CompilerServices;
using System.Threading;

#pragma warning disable CS1591 // publicly visible type or member must be documented

namespace EnumClassDemo
{
    [global::System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Raiqub.Generators.EnumUtilities", "1.6.0.0")]
    public static partial class ColorsExtensions
    {
        /// <summary>Converts the value of this instance to its equivalent string representation.</summary>
        /// <returns>The string representation of the value of this instance.</returns>
        public static string ToStringFast(this Colors value)
        {
            return value switch
            {
                Colors.None => nameof(Colors.None),
                Colors.Red => nameof(Colors.Red),
                Colors.Green => nameof(Colors.Green),
                Colors.Blue => nameof(Colors.Blue),
                _ => value.ToString()
            };
        }

        /// <summary>Returns a boolean telling whether the value of this instance exists in the enumeration.</summary>
        /// <returns><c>true</c> if the value of this instance exists in the enumeration; <c>false</c> otherwise.</returns>
        public static bool IsDefined(this Colors value)
        {
            return ColorsValidation.IsDefined(value);
        }

    #if NET5_0_OR_GREATER
        /// <summary>Bitwise "ands" two enumerations and replaces the first value with the result, as an atomic operation.</summary>
        /// <param name="location">A variable containing the first value to be combined.</param>
        /// <param name="value">The value to be combined with the value at <paramref name="location" />.</param>
        /// <returns>The original value in <paramref name="location" />.</returns>
        public static Colors InterlockedAnd(this ref Colors location, Colors value)
        {
            ref int locationRaw = ref Unsafe.As<Colors, int>(ref location);
            int resultRaw = Interlocked.And(ref locationRaw, Unsafe.As<Colors, int>(ref value));
            return Unsafe.As<int, Colors>(ref resultRaw);
        }

        /// <summary>Bitwise "ors" two enumerations and replaces the first value with the result, as an atomic operation.</summary>
        /// <param name="location">A variable containing the first value to be combined.</param>
        /// <param name="value">The value to be combined with the value at <paramref name="location" />.</param>
        /// <returns>The original value in <paramref name="location" />.</returns>
        public static Colors InterlockedOr(this ref Colors location, Colors value)
        {
            ref int locationRaw = ref Unsafe.As<Colors, int>(ref location);
            int resultRaw = Interlocked.Or(ref locationRaw, Unsafe.As<Colors, int>(ref value));
            return Unsafe.As<int, Colors>(ref resultRaw);
        }
    #endif

        /// <summary>Compares two enumerations for equality and, if they are equal, replaces the first value.</summary>
        /// <param name="location">The destination, whose value is compared with <paramref name="comparand" /> and possibly replaced.</param>
        /// <param name="value">The value that replaces the destination value if the comparison results in equality.</param>
        /// <param name="comparand">The value that is compared to the value at <paramref name="location" />.</param>
        /// <returns>The original value in <paramref name="location" />.</returns>
        public static Colors InterlockedCompareExchange(this ref Colors location, Colors value, Colors comparand)
        {
            ref int locationRaw = ref Unsafe.As<Colors, int>(ref location);
            int resultRaw = Interlocked.CompareExchange(ref locationRaw, Unsafe.As<Colors, int>(ref value), Unsafe.As<Colors, int>(ref comparand));
            return Unsafe.As<int, Colors>(ref resultRaw);
        }

        /// <summary>Sets an enumeration value to a specified value and returns the original value, as an atomic operation.</summary>
        /// <param name="location">The variable to set to the specified value.</param>
        /// <param name="value">The value to which the <paramref name="location" /> parameter is set.</param>
        /// <returns>The original value of <paramref name="location" />.</returns>
        public static Colors InterlockedExchange(this ref Colors location, Colors value)
        {
            ref int locationRaw = ref Unsafe.As<Colors, int>(ref location);
            int resultRaw = Interlocked.Exchange(ref locationRaw, Unsafe.As<Colors, int>(ref value));
            return Unsafe.As<int, Colors>(ref resultRaw);
        }

        public static string ToEnumMemberValue(this Colors value)
        {
            return value switch
            {
                Colors.None => "This should be never seen",
                Colors.Red => nameof(Colors.Red),
                Colors.Green => nameof(Colors.Green),
                Colors.Blue => nameof(Colors.Blue),
                _ => value.ToString()
            };
        }
    }
}

EnumClassDemo.ColorsFactory.g.cs

// <auto-generated />
#nullable enable

using System;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;

#pragma warning disable CS1591 // publicly visible type or member must be documented

namespace EnumClassDemo
{
    [global::System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Raiqub.Generators.EnumUtilities", "1.6.0.0")]
    public static partial class ColorsFactory
    {
        /// <summary>
        /// Converts the string representation of the name or numeric value of one or more enumerated constants to
        /// an equivalent enumerated object. The return value indicates whether the conversion succeeded.
        /// </summary>
        /// <param name="name">The case-sensitive string representation of the enumeration name or underlying value to convert.</param>
        /// <param name="comparisonType">One of the enumeration values that specifies how the strings will be compared.</param>
        /// <param name="result">
        /// When this method returns, result contains an object of type Colors whose value is represented by value
        /// if the parse operation succeeds. If the parse operation fails, result contains the default value of the
        /// underlying type of Colors. Note that this value need not be a member of the Colors enumeration.
        /// </param>
        /// <returns><c>true</c> if the value parameter was converted successfully; otherwise, <c>false</c>.</returns>
        /// <exception cref="ArgumentException"><paramref name="comparisonType"/> is not a <see cref="StringComparison"/> value.</exception>
        public static bool TryParse(
            [NotNullWhen(true)] string? name,
            StringComparison comparisonType,
            out Colors result)
        {
            switch (name)
            {
                case { } s when s.Equals(nameof(Colors.None), comparisonType):
                    result = Colors.None;
                    return true;
                case { } s when s.Equals(nameof(Colors.Red), comparisonType):
                    result = Colors.Red;
                    return true;
                case { } s when s.Equals(nameof(Colors.Green), comparisonType):
                    result = Colors.Green;
                    return true;
                case { } s when s.Equals(nameof(Colors.Blue), comparisonType):
                    result = Colors.Blue;
                    return true;
                case { } s when TryParseNumeric(s, comparisonType, out int val):
                    result = (Colors)val;
                    return true;
                default:
                    return Enum.TryParse(name, out result);
            }
        }

        /// <summary>
        /// Converts the string representation of the name or numeric value of one or more enumerated constants to
        /// an equivalent enumerated object. The return value indicates whether the conversion succeeded.
        /// </summary>
        /// <param name="name">The case-sensitive string representation of the enumeration name or underlying value to convert.</param>
        /// <param name="result">
        /// When this method returns, result contains an object of type Colors whose value is represented by value
        /// if the parse operation succeeds. If the parse operation fails, result contains the default value of the
        /// underlying type of Colors. Note that this value need not be a member of the Colors enumeration.
        /// </param>
        /// <returns><c>true</c> if the value parameter was converted successfully; otherwise, <c>false</c>.</returns>
        public static bool TryParse(
            [NotNullWhen(true)] string? name,
            out Colors result)
        {
            switch (name)
            {
                case nameof(Colors.None):
                    result = Colors.None;
                    return true;
                case nameof(Colors.Red):
                    result = Colors.Red;
                    return true;
                case nameof(Colors.Green):
                    result = Colors.Green;
                    return true;
                case nameof(Colors.Blue):
                    result = Colors.Blue;
                    return true;
                case { } s when TryParseNumeric(s, StringComparison.Ordinal, out int val):
                    result = (Colors)val;
                    return true;
                default:
                    return Enum.TryParse(name, out result);
            }
        }

        /// <summary>
        /// Converts the string representation of the name or numeric value of one or more enumerated constants to
        /// an equivalent enumerated object. The return value indicates whether the conversion succeeded.
        /// </summary>
        /// <param name="name">The case-sensitive string representation of the enumeration name or underlying value to convert.</param>
        /// <param name="result">
        /// When this method returns, result contains an object of type Colors whose value is represented by value
        /// if the parse operation succeeds. If the parse operation fails, result contains the default value of the
        /// underlying type of Colors. Note that this value need not be a member of the Colors enumeration.
        /// </param>
        /// <returns><c>true</c> if the value parameter was converted successfully; otherwise, <c>false</c>.</returns>
        public static bool TryParseIgnoreCase(
            [NotNullWhen(true)] string? name,
            out Colors result)
        {
            return TryParse(name, StringComparison.OrdinalIgnoreCase, out result);
        }

        /// <summary>
        /// Converts the string representation of the name or numeric value of one or more enumerated constants to
        /// an equivalent enumerated object.
        /// </summary>
        /// <param name="name">The case-sensitive string representation of the enumeration name or underlying value to convert.</param>
        /// <returns>
        /// Contains an object of type Colors whose value is represented by value if the parse operation succeeds.
        /// If the parse operation fails, result contains <c>null</c> value.
        /// </returns>
        public static Colors? TryParse(string? name)
        {
            return TryParse(name, out Colors result) ? result : null;
        }

        /// <summary>
        /// Converts the string representation of the name or numeric value of one or more enumerated constants to
        /// an equivalent enumerated object.
        /// </summary>
        /// <param name="name">The case-sensitive string representation of the enumeration name or underlying value to convert.</param>
        /// <returns>
        /// Contains an object of type Colors whose value is represented by value if the parse operation succeeds.
        /// If the parse operation fails, result contains <c>null</c> value.
        /// </returns>
        public static Colors? TryParseIgnoreCase(string? name)
        {
            return TryParse(name, StringComparison.OrdinalIgnoreCase, out Colors result) ? result : null;
        }

        /// <summary>
        /// Converts the string representation of the name or numeric value of one or more enumerated constants to
        /// an equivalent enumerated object.
        /// </summary>
        /// <param name="name">The case-sensitive string representation of the enumeration name or underlying value to convert.</param>
        /// <param name="comparisonType">One of the enumeration values that specifies how the strings will be compared.</param>
        /// <returns>
        /// Contains an object of type Colors whose value is represented by value if the parse operation succeeds.
        /// If the parse operation fails, result contains <c>null</c> value.
        /// </returns>
        /// <exception cref="ArgumentException"><paramref name="comparisonType"/> is not a <see cref="StringComparison"/> value.</exception>
        public static Colors? TryParse(string? name, StringComparison comparisonType)
        {
            return TryParse(name, comparisonType, out Colors result) ? result : null;
        }

        /// <summary>
        /// Converts the string representation of the value associated with one enumerated constant to
        /// an equivalent enumerated object. The return value indicates whether the conversion succeeded.
        /// </summary>
        /// <param name="enumMemberValue">The value as defined with <see cref="System.Runtime.Serialization.EnumMemberAttribute"/>.</param>
        /// <param name="comparisonType">One of the enumeration values that specifies how the strings will be compared.</param>
        /// <param name="result">
        /// When this method returns, result contains an object of type Colors whose value is represented by value
        /// if the parse operation succeeds. If the parse operation fails, result contains the default value of the
        /// underlying type of Colors. Note that this value need not be a member of the Colors enumeration.
        /// </param>
        /// <returns><c>true</c> if the value parameter was converted successfully; otherwise, <c>false</c>.</returns>
        /// <exception cref="ArgumentException"><paramref name="comparisonType"/> is not a <see cref="StringComparison"/> value.</exception>
        public static bool TryParseFromEnumMemberValue(
            [NotNullWhen(true)] string? enumMemberValue,
            StringComparison comparisonType,
            out Colors result)
        {
            switch (enumMemberValue)
            {
                case { } s when s.Equals("This should be never seen", comparisonType):
                    result = Colors.None;
                    return true;
                case { } s when s.Equals(nameof(Colors.Red), comparisonType):
                    result = Colors.Red;
                    return true;
                case { } s when s.Equals(nameof(Colors.Green), comparisonType):
                    result = Colors.Green;
                    return true;
                case { } s when s.Equals(nameof(Colors.Blue), comparisonType):
                    result = Colors.Blue;
                    return true;
                default:
                    result = default;
                    return false;
            }
        }

        /// <summary>
        /// Converts the string representation of the value associated with one enumerated constant to
        /// an equivalent enumerated object. The return value indicates whether the conversion succeeded.
        /// </summary>
        /// <param name="enumMemberValue">The value as defined with <see cref="System.Runtime.Serialization.EnumMemberAttribute"/>.</param>
        /// <param name="result">
        /// When this method returns, result contains an object of type Colors whose value is represented by value
        /// if the parse operation succeeds. If the parse operation fails, result contains the default value of the
        /// underlying type of Colors. Note that this value need not be a member of the Colors enumeration.
        /// </param>
        /// <returns><c>true</c> if the value parameter was converted successfully; otherwise, <c>false</c>.</returns>
        public static bool TryParseFromEnumMemberValue([NotNullWhen(true)] string? enumMemberValue, out Colors result)
        {
            return TryParseFromEnumMemberValue(enumMemberValue, StringComparison.Ordinal, out result);
        }

        /// <summary>
        /// Converts the string representation of the value associated with one enumerated constant to
        /// an equivalent enumerated object.
        /// </summary>
        /// <param name="enumMemberValue">The value as defined with <see cref="System.Runtime.Serialization.EnumMemberAttribute"/>.</param>
        /// <param name="comparisonType">One of the enumeration values that specifies how the strings will be compared.</param>
        /// <returns>
        /// Contains an object of type Colors whose value is represented by value if the parse operation succeeds.
        /// If the parse operation fails, result contains a null value.
        /// </returns>
        /// <exception cref="ArgumentException"><paramref name="comparisonType"/> is not a <see cref="StringComparison"/> value.</exception>
        public static Colors? TryParseFromEnumMemberValue(string? enumMemberValue, StringComparison comparisonType)
        {
            return TryParseFromEnumMemberValue(enumMemberValue, comparisonType, out Colors result) ? result : null;
        }

        /// <summary>
        /// Converts the string representation of the value associated with one enumerated constant to
        /// an equivalent enumerated object.
        /// </summary>
        /// <param name="enumMemberValue">The value as defined with <see cref="System.Runtime.Serialization.EnumMemberAttribute"/>.</param>
        /// <returns>
        /// Contains an object of type Colors whose value is represented by value if the parse operation succeeds.
        /// If the parse operation fails, result contains a null value.
        /// </returns>
        public static Colors? TryParseFromEnumMemberValue(string? enumMemberValue)
        {
            return TryParseFromEnumMemberValue(enumMemberValue, StringComparison.Ordinal, out Colors result) ? result : null;
        }

        /// <summary>Retrieves an array of the values of the constants in the Colors enumeration.</summary>
        /// <returns>An array that contains the values of the constants in Colors.</returns>
        public static Colors[] GetValues()
        {
            return new[]
            {
                Colors.None,
                Colors.Red,
                Colors.Green,
                Colors.Blue,
            };
        }

        /// <summary>Retrieves an array of the names of the constants in Colors enumeration.</summary>
        /// <returns>A string array of the names of the constants in Colors.</returns>
        public static string[] GetNames()
        {
            return new[]
            {
                nameof(Colors.None),
                nameof(Colors.Red),
                nameof(Colors.Green),
                nameof(Colors.Blue),
            };
        }

        private static bool TryParseNumeric(
            string name,
            StringComparison comparisonType,
            out int result)
        {
            switch (comparisonType)
            {
                case StringComparison.CurrentCulture:
                case StringComparison.CurrentCultureIgnoreCase:
                    return int.TryParse(name, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
                case StringComparison.InvariantCulture:
                case StringComparison.InvariantCultureIgnoreCase:
                case StringComparison.Ordinal:
                case StringComparison.OrdinalIgnoreCase:
                    return int.TryParse(name, NumberStyles.Integer, NumberFormatInfo.InvariantInfo, out result);
                default:
                    return int.TryParse(name, out result);
            }
        }
    }
}

EnumClassDemo.ColorsValidation.g.cs

// <auto-generated />
#nullable enable

using System;
using System.Diagnostics.CodeAnalysis;

#pragma warning disable CS1591 // publicly visible type or member must be documented

namespace EnumClassDemo
{
    [global::System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Raiqub.Generators.EnumUtilities", "1.6.0.0")]
    public static partial class ColorsValidation
    {
        /// <summary>Returns a boolean telling whether the value of <see cref="Colors"/> instance exists in the enumeration.</summary>
        /// <returns><c>true</c> if the value of <see cref="Colors"/> instance exists in the enumeration; <c>false</c> otherwise.</returns>
        public static bool IsDefined(Colors value)
        {
            return value switch
            {
                Colors.None => true,
                Colors.Red => true,
                Colors.Green => true,
                Colors.Blue => true,
                _ => false
            };
        }

        public static bool IsDefined(
            [NotNullWhen(true)] string? name,
            StringComparison comparisonType)
        {
            return name switch
            {
                { } s when s.Equals(nameof(Colors.None), comparisonType) => true,
                { } s when s.Equals(nameof(Colors.Red), comparisonType) => true,
                { } s when s.Equals(nameof(Colors.Green), comparisonType) => true,
                { } s when s.Equals(nameof(Colors.Blue), comparisonType) => true,
                _ => false
            };
        }

        public static bool IsDefinedIgnoreCase([NotNullWhen(true)] string? name)
        {
            return IsDefined(name, StringComparison.OrdinalIgnoreCase);
        }

        public static bool IsDefined([NotNullWhen(true)] string? name)
        {
            return name switch
            {
                nameof(Colors.None) => true,
                nameof(Colors.Red) => true,
                nameof(Colors.Green) => true,
                nameof(Colors.Blue) => true,
                _ => false
            };
        }
    }
}

Useful

Download Example (.NET C#)

tip

Download Example project EnumUtilities

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https://ignatandrei.github.io/RSCG_Examples/v2/docs/EnumUtilities

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Category "Enum" has the following generators:

1 Aigamo.MatchGenerator 2026-04-08

2 CredFetoEnum 2023-10-12

3 EnumClass 2023-08-08

4 EnumsEnhanced 2025-08-05

5 EnumUtilities 2024-04-05

6 Flaggen 2025-07-23

7 FusionReactor 2024-04-06

8 Genbox.FastEnum 2025-08-03

9 jos.enumeration 2025-07-20

10 LayeredCraft.OptimizedEnums 2026-09-06

11 LinkDotNet.Enumeration 2026-05-14

12 NetEscapades.EnumGenerators 2023-04-16

13 PMart.Enumeration 2025-03-25

14 Porticle.Enumly 2026-07-02

15 RapidEnum 2025-10-04

16 requiredenum 2025-08-14

17 TaggedEnum 2026-04-05

See category

Enum