Generic ADO Connector Unsupported Functions

The following lists include the properties and methods that iASP does not support for the default connectors. Functions with partial support contain explanatory text.

Command Object

  • Prepared property
  • Cancel - 2.0 method
  • Execute(RecordsAffected, Parameters, Options) method (supported except for Options equal adAsyncExecute or adAsyncFetch)

Field Object

Unsupported properties:

  • Attributes
  • NumericScale
  • Type (supported only for a non-OLE DB type.)
  • UnderlyingValue

Properties Collection

  • Refresh method

Error Object

  • HelpContext property

Property Object

  • Attributes property
  • Type property (supported only for a non-OLE DB type.)

Recordset Object

Unsupported properties:

  • CacheSize 
  • LockType (supported, but Pessimistic type expected)
  • MarshalOptions 
  • MaxRecords 

Unsupported methods:

  • Clone
  • NextRecordset (supported, but only for Oracle, SqlServer, and Sybase)
  • Open (supported except for OLEDB features such as: DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=" & Server.MapPath("classified.MDB"))
  • Supports

Connection Object

Unsupported properties:

  • DefaultDatabase
  • IsolationLevel 
  • Provider 

Unsupported methods:

  • Execute(CommandText,RecordsAffected,Options ) (supported except for Options equal adAsyncExecute or adAsyncFetch)
  • Open(ConnectionString,UserId,Password,Options) (supported except for Options equal adAsyncConnect) 
  • OpenSchema(QueryType ) (See note.)
  • OpenSchema(QueryType,Criteria ) (See note.)
  • OpenSchema(QueryType,Criteria,SchemaId)
  • Cancel -2.0

NOTE: The method, OpenSchema, is supported by iASP only if the QueryType's value is not equal to the one of Content:

"adSchemaAsserts, adSchemaCharacterSets, adSchemaCheckConstraints, adSchemaCollations, adSchemaConstraintColumnUsage, adSchemaConstraintTableUsage, adSchemaKeyColumnUsage, adSchemaProcedureParameters, adSchemaProviderSpecific, adSchemaSQLLanguages, adSchemaStatistics, adSchemaTableConstraints, adSchemaTranslations, adSchemaUsagePrivileges, adSchemaViewColumnUsage, adSchemaViewTableUsage, adSchemaViews"

The values of the Recordset.Fields that OpenSchema returns are different with IIS.

NOTE: If you require immediate support for an unsupported function, please email support@halcyonsoft.com.


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