/// <summary>
/// 获取枚举定义中的程序显示名称
/// </summary>
/// <param name="myEnum"></param>
/// <returns></returns>
public static string GetDisplayName(this Enum myEnum)
{
Type type = myEnum.GetType();
FieldInfo info = type.GetField(myEnum.ToString());
EnumMappingAttribute spa = info.GetCustomAttributes(typeof(EnumMappingAttribute), true)[0] as EnumMappingAttribute;
if (spa != null)
{
return(spa.DisplayName);
}
else
{
return(null);
}
}
/// <summary>
/// 把某个显示值翻译成对应的枚举项
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="str"></param>
/// <returns></returns>
public static T Parse2EnumByDisplayName <T>(string str)
{
try
{
Type t = typeof(T);
foreach (var fi in t.GetFields(BindingFlags.Static | BindingFlags.Public))
{
EnumMappingAttribute spa = Attribute.GetCustomAttributes(fi, typeof(EnumMappingAttribute), true)[0] as EnumMappingAttribute;
if (spa != null && spa.DisplayName == str)
{
return((T)Enum.Parse(typeof(T), fi.Name, true));
}
}
return(default(T));
}
catch
{
return(default(T));
}
}
/// <summary>
/// 根据枚举定义中的数据库名称来判断某个数据值是否与某枚举相等
/// </summary>
/// <param name="myEnum"></param>
/// <param name="dbCode"></param>
/// <returns></returns>
public static bool EqualByDBCode(this Enum myEnum, string dbCode)
{
Type type = myEnum.GetType();
FieldInfo info = type.GetField(myEnum.ToString());
EnumMappingAttribute ema = info.GetCustomAttributes(typeof(EnumMappingAttribute), true)[0] as EnumMappingAttribute;
if (ema != null)
{
if (ema.DBCode == dbCode)
{
return(true);
}
else
{
return(false);
}
}
else
{
return(false);
}
}
/// <summary>
/// 获取某个枚举类型的映射集合
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public static List <EnumMappingAttribute> GetMappingList <T>()
{
List <EnumMappingAttribute> list = new List <EnumMappingAttribute>();
try
{
Type t = typeof(T);
foreach (var fi in t.GetFields(BindingFlags.Static | BindingFlags.Public))
{
EnumMappingAttribute spa = Attribute.GetCustomAttributes(fi, typeof(EnumMappingAttribute), true)[0] as EnumMappingAttribute;
if (spa != null)
{
list.Add(spa);
}
}
}
catch
{
list.Clear();
}
return(list);
}
