namespace WDBuyNET.DMSFrame.Utils{    public static class TypeExtentions    {        public static bool IsPrimitive(this Type t)        {            bool result;            if (t.IsGenericType)            {                result = (TypeExtentions.IsNullableType(t) && TypeExtentions.IsPrimitive(Nullable.GetUnderlyingType(t)));            }            else            {                bool arg_14F_0;                if (!(t == typeof(string)) && !(t == typeof(short)) && !(t == typeof(ushort)) && !(t == typeof(int)) && !(t == typeof(uint)) && !(t == typeof(long)) && !(t == typeof(ulong)) && !(t == typeof(float)) && !(t == typeof(double)) && !(t == typeof(decimal)) && !(t == typeof(char)) && !(t == typeof(byte)) && !(t == typeof(bool)) && !(t == typeof(DateTime)))                {                    arg_14F_0 = (t == typeof(Guid));                }                else                {                    arg_14F_0 = true;                }                result = arg_14F_0;            }            return result;        }        public static bool IsStringType(this Type type)        {            bool arg_80_0;            if (!(type == typeof(string)) && !(type == typeof(bool)) && !(type == typeof(DateTime)) && !(type == typeof(Guid)) && !(type == typeof(bool?)) && !(type == typeof(DateTime?)))            {                arg_80_0 = (type == typeof(Guid?));            }            else            {                arg_80_0 = true;            }            return arg_80_0;        }        public static bool IsBooleanType(this Type type)        {            return TypeExtentions.GetUnderlyingType(type) == typeof(bool);        }        public static bool AllowsNullValue(this Type type)        {            return !type.IsValueType || TypeExtentions.IsNullableType(type);        }        public static bool IsNullableType(this Type type)        {            return type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable);        }        public static Type GetUnderlyingType(this Type type)        {            return TypeExtentions.IsNullableType(type) ? Nullable.GetUnderlyingType(type) : type;        }        public static string Join(this string[] array, char splitChar)        {            StringBuilder stringBuilder = new StringBuilder();            for (int i = 0; i < array.Length; i++)            {                stringBuilder.Append(array[i]);                stringBuilder.Append(splitChar);            }            return stringBuilder.ToString().TrimEnd(new char[]            {                splitChar            });        }        public static object DefaultValue(this Type type)        {            return type.IsValueType ? Activator.CreateInstance(type) : null;        }        public static string MD5(this string text)        {            byte[] bytes = Encoding.Default.GetBytes(text);            MD5CryptoServiceProvider mD5CryptoServiceProvider = new MD5CryptoServiceProvider();            byte[] array = mD5CryptoServiceProvider.ComputeHash(bytes);            string text2 = "";            byte[] array2 = array;            for (int i = 0; i < array2.Length; i++)            {                byte b = array2[i];                text2 = ((b >= 16) ? (text2 + b.ToString("X")) : (text2 + "0" + b.ToString("X")));            }            return text2.ToLower();        }    }}