如何让public static TEnum ConvertByName<TEnum>(this Enum source, bool ignoreCase = false) where TEnum : struct
{
// if limited by lack of generic enum constraint
if (!typeof(TEnum).IsEnum)
{
throw new InvalidOperationException("enumeration type required.");
}
TEnum result;
if (!Enum.TryParse(source.ToString(), ignoreCase, out result))
{
throw new Exception("conversion failure.");
}
return result;
}
在PostgreSQL中工作？