= new Type[23]
{
typeof(void),
typeof(bool),
typeof(char),
typeof(sbyte),
typeof(byte),
typeof(short),
typeof(ushort),
typeof(int),
typeof(uint),
typeof(long),
typeof(ulong),
typeof(float),
typeof(double),
typeof(string),
typeof(void),
typeof(TimeSpan),
typeof(object),
typeof(decimal),
typeof(object),
}
static readonly Variant Empty
static readonly Variant Missing
static readonly Variant DBNull