public static IDictionary <string, string> ToNDescriptionDictionary(Type enumType)
{
var dictionary = new Dictionary <string, string>();
object enumInstance = enumType.Assembly.CreateInstance(enumType.FullName);
FieldInfo[] fieldInfos = enumType.GetFields();
foreach (FieldInfo fieldInfo in fieldInfos)
{
var descriptionAttributes =
(DescriptionAttribute[])fieldInfo.GetCustomAttributes(typeof(DescriptionAttribute), true);
if (descriptionAttributes.Length > 0)
{
var key = ((int)fieldInfo.GetValue(enumInstance)).ToString();
var value = descriptionAttributes[0].Description;
if (!dictionary.ContainsKey(key))
{
dictionary.Add(key, value);
}
}
}
var result = new OptimizedDictionary <string, string>();
foreach (var kvp in dictionary)
{
result.Add(kvp.Key, kvp.Value);
}
return(result);
}
/// <summary>
///
/// </summary>
/// <param name="enumType"></param>
/// <returns></returns>
public static IDictionary <string, string> ToDescriptionDictionary(Type enumType)
{
string cacheKey = "CACHE_ENUM_KEYVALUE_" + enumType.FullName.ToUpper();
var dictionary = HttpContext.Current.Cache[cacheKey] as Dictionary <string, string>;
if (dictionary == null)
{
dictionary = new Dictionary <string, string>();
object enumInstance = enumType.Assembly.CreateInstance(enumType.FullName);
FieldInfo[] fieldInfos = enumType.GetFields();
foreach (FieldInfo fieldInfo in fieldInfos)
{
var descriptionAttributes = (DescriptionAttribute[])fieldInfo.GetCustomAttributes(typeof(DescriptionAttribute), true);
if (descriptionAttributes.Length > 0)
{
var key = ((int)fieldInfo.GetValue(enumInstance)).ToString();
var value = descriptionAttributes[0].Description;
if (!dictionary.ContainsKey(key))
{
dictionary.Add(key, value);
}
}
}
HttpContext.Current.Cache.Insert(cacheKey, dictionary);
}
var result = new OptimizedDictionary <string, string>();
foreach (var kvp in dictionary)
{
result.Add(kvp.Key, kvp.Value);
}
return(result);
}