MapWindow5/src/MW5.Shared/EnumHelper.cs at develop · MapWindow/MapWindow5 · GitHub

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using System;

using System.Collections.Generic;

using System.Globalization;

using System.Linq;

namespace MW5.Shared

{

/// <summary>

/// Helper methods to work with enumrated values, including the support of converters

/// to provide string representation of these values in the UI.

/// </summary>

public static class EnumHelper

{

private static readonly Dictionary<Type, object> _dict = new Dictionary<Type, object>();

public static void RegisterConverter<T>(IEnumConverter<T> converter) where T : struct, IConvertible

{

var t = new T();

_dict.Add(t.GetType(), converter);

}

public static Func<T, string> GetToStringFunction<T>() where T : struct, IConvertible

{

var t = new T();

var type = t.GetType();

object val;

if (_dict.TryGetValue(type, out val))

{

var converter = val as IEnumConverter<T>;

if (converter != null)

{

return converter.GetString;

}

return null;

}

public static IEnumerable<string> GetStrings<T>() where T : struct, IConvertible

{

var t = new T();

var type = t.GetType();

var values = Enum.GetValues(type);

return from T value in values select EnumToString(value);

}

public static string EnumToString<T>(this T value) where T : struct, IConvertible

{

var fn = GetToStringFunction<T>();

if (fn != null)

{

return fn(value);

}

return value.ToString(CultureInfo.InvariantCulture);

}

public static T[] GetValues<T>()

{

return Enum.GetValues(typeof(T)) as T[];

}

MapWindow5/src/MW5.Shared/EnumHelper.cs at develop · MapWindow/MapWindow5 · GitHub

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