Obter o Sinónimo Access ADOX de uma DataColumn ADO.NET

static ADOX.DataTypeEnum GetAccessFormats(DataColumn col)
        {
            switch (col.DataType.Name)
            {
                case "Boolean":
                    return ADOX.DataTypeEnum.adBoolean;
                case "Byte":
                    return ADOX.DataTypeEnum.adUnsignedTinyInt;
                case "Char":
                    return ADOX.DataTypeEnum.adVarWChar;
                case "DateTime":
                    return ADOX.DataTypeEnum.adDate;
                case "Decimal":
                    return ADOX.DataTypeEnum.adDecimal;
                case "Double":
                    return ADOX.DataTypeEnum.adDouble;
                case "Int16":
                    return ADOX.DataTypeEnum.adSmallInt;
                case "Int32":
                    return ADOX.DataTypeEnum.adInteger;
                case "Int64":
                    return ADOX.DataTypeEnum.adInteger;
                case "SByte":
                    return ADOX.DataTypeEnum.adUnsignedSmallInt;
                case "Single":
                    return ADOX.DataTypeEnum.adSingle;
                case "String":
                    return ADOX.DataTypeEnum.adVarWChar;
                case "TimeStamp":
                    return ADOX.DataTypeEnum.adGUID;
                default:
                    return ADOX.DataTypeEnum.adUserDefined;
            }
        }