# MxDataType Enumeration Namespace: `ArchestrA.Toolkit` **Syntax** ```csharp enum MxDataType { MxDataTypeUnknown = -1, MxNoData = 0, MxBoolean = 1, MxInteger = 2, MxFloat = 3, MxDouble = 4, MxString = 5, MxTime = 6, MxElapsedTime = 7, MxReferenceType = 8, MxStatusType = 9, MxDataTypeEnum = 10, MxSecurityClassificationEnum = 11, MxDataQualityType = 12, MxQualifiedEnum = 13, MxQualifiedStruct = 14, MxInternationalizedString = 15, MxBigString = 16, MxDataTypeEND = 17, } ``` **Remarks** Indicates the datatype of an attribute.