ADO对象模型的概要
下图是ADO模型中的对象示意图，白色的是Collection。
ADO Object Summary
Object
Description
Command
Defines a specific command that you intend to execute against a data source.
Connection
Represents an open connection to a data source.
DataControl (RDS)
Binds a data query Recordset to one or more controls (for example, a text box, grid control, or combo box) to display the Recordset data on a Web page.
DataFactory (RDS Server)
Implements methods that provide read/write data access to specified data sources for client-side applications.
DataSpace (RDS)
Creates client-side proxies to custom business objects located on the middle tier.
Error
Contains details about data access errors that pertain to a single operation involving the provider.
Field
Represents a column of data with a common data type.
Parameter
Represents a parameter or argument associated with a Command object based on a parameterized query or stored procedure.
Property
Represents a dynamic characteristic of an ADO object that is defined by the provider.
Record
Represents a row of a Recordset, or a directory or file in a file system.
Recordset
Represents the entire set of records from a base table or the results of an executed command. At any time, the Recordset object refers to only a single record within the set as the current record.
Stream
Represents a binary stream of data.
ADO Collection Summary
Collection
Description
Errors
Contains all the Error objects created in response to a single provider-related failure.
Fields
Contains all the Field objects of a Recordset object.
Parameters
Contains all the Parameter objects of a Command object.
Properties
Contains all the Property objects for a specific instance of an object.
ADO Property Summary
Property
Description
AbsolutePage
Indicates on which page the current record resides.
AbsolutePosition
Indicates the ordinal position of a Recordset object's current record.
ActiveCommand
Indicates the Command object that created the associated Recordset object.
ActiveConnection
Indicates to which Connection object the specified Command, Recordset, or Record object currently belongs.
ActualSize
Indicates the actual length of a field's value.
Attributes
Indicates one or more characteristics of an object.
BOF and EOF
BOF — indicates that the current record position is before the first record in a Recordset object.EOF — indicates that the current record position is after the last record in a Recordset object.
Bookmark
Indicates a bookmark that uniquely identifies the current record in a Recordset object or sets the current record in a Recordset object to the record identified by a valid bookmark.
CacheSize
Indicates the number of records from a Recordset object that are cached locally in memory.
CharSet
Indicates the character set into which the contents of a text Stream should be translated.
CommandText
Indicates the text of a command to be issued against a provider.
CommandTimeout
Indicates how long to wait while executing a command before terminating the attempt and generating an error.
CommandType
Indicates the type of a Command object.
Connect (RDS)
Indicates the database name from which the query and update operations are run.
ConnectionString Property
Indicates the information used to establish a connection to a data source.
ConnectionTimeout
Indicates how long to wait while establishing a connection before terminating the attempt and generating an error.
Count
Indicates the number of objects in a collection.
CursorLocation
Indicates the location of the cursor service.
CursorType
Indicates the type of cursor used in a Recordset object.
DataMember
Indicates the name of the data member that will be retrieved from the object referenced by the DataSource property.
DataSource
Indicates an object that contains data to be represented as a Recordset object.
DefaultDatabase
Indicates the default database for a Connection object.
DefinedSize
Indicates the data capacity of a Field object.
Description
Describes an Error object.
Direction
Indicates whether the Parameter represents an input parameter, an output parameter, or both, or if the parameter is the return value from a stored procedure.
EditMode
Indicates the editing status of the current record.
EOS
Indicates whether the current position is at the end of the stream.
ExecuteOptions (RDS)
Indicates whether asynchronous execution is enabled.
FetchOptions (RDS)
Indicates the type of asynchronous fetching.
Filter
Indicates a filter for data in a Recordset.
FilterColumn (RDS)
Indicates the column on which to evaluate the filter criteria.
FilterCriterion (RDS)
Indicates the evaluation operator to use in the filter value.
FilterValue (RDS)
Indicates the value to filter records.
Handler (RDS)
Indicates the name of a server-side customization program (handler) that extends the functionality of the RDSServer.DataFactory, and any parameters used by the handler.
HelpContext and HelpFile
Indicates the help file and topic associated with an Error object.
HelpContextID — returns a context ID, as a Long value, for a topic in a Help file.HelpFile — returns a String value that evaluates to a fully resolved path to a Help file.
Index
Indicates the name of the index currently in effect for a Recordset object.
InternetTimeout (RDS)
Indicates the number of milliseconds to wait before a request times out.
IsolationLevel
Indicates the level of isolation for a Connection object.
Item
Indicates a specific member of a collection, by name or ordinal number.
LineSeparator
Indicates the binary character to be used as the line separator in text Stream objects.
LockType
Indicates the type of locks placed on records during editing.
MarshalOptions
Indicates which records are to be marshaled back to the server.
MaxRecords
Indicates the maximum number of records to return to a Recordset from a query.
Mode
Indicates the available permissions for modifying data in a Connection, Record, or Stream object.
Name
Indicates the name of an object.
NativeError
Indicates the provider-specific error code for a given Error object.
Number
Indicates the number that uniquely identifies an Error object.
NumericScale
Indicates the scale of numeric values in a Parameter or Field object.
OriginalValue
Indicates the value of a Field that existed in the record before any changes were made.
PageCount
Indicates how many pages of data the Recordset object contains.
PageSize
Indicates how many records constitute one page in the Recordset.
ParentURL
Indicates an absolute URL string that points to the parent Record of the current Record object.
Position
Indicates the current position within a Stream object.
Precision
Indicates the degree of precision for numeric values in a Parameter object or for numeric Field objects.
Prepared
Indicates whether to save a compiled version of a command before execution.
Provider
Indicates the name of the provider for a Connection object.
ReadyState (RDS)
Indicates the progress of a DataControl object as it fetches data into its Recordset object.
RecordCount
Indicates the number of records in a Recordset object.
Recordset and SourceRecordset (RDS)
Indicates the Recordset object returned from a custom business object.
RecordType
Indicates the type of Record object.
Server (RDS)
Indicates the Internet Information Services (IIS) name and communication protocol.
Size
Indicates the maximum size, in bytes or characters, of a Parameter object.
Size (ADO Stream)
Indicates the total size of the stream in number of bytes.
Sort
Indicates one or more field names on which the Recordset is sorted, and whether each field is sorted in ascending or descending order.
SortColumn (RDS)
Indicates by which column to sort the records.
SortDirection (RDS)
Indicates whether a sort order is ascending or descending.
Source (ADO Error)
Indicates the name of the object or application that originally generated an error.
Source (ADO Record)
Indicates the entity represented by the Record object.
Source (ADO Recordset)
Indicates the source for the data in a Recordset object
SQL (RDS)
Indicates the query string used to retrieve the Recordset.
SQLState
Indicates the SQL state for a given Error object.
State
Indicates for all applicable objects whether the state of the object is open or closed.Indicates for all applicable objects executing an asynchronous method, whether the current state of the object is connecting, executing, or retrieving
Status (ADO Field)
Indicates the status of a Field object.
Status (ADO Recordset)
Indicates the status of the current record with respect to batch updates or other bulk operations.
StayInSync
Indicates, in a hierarchical Recordset object, whether the reference to the underlying child records (that is, the chapter) changes when the parent row position changes.
Type
Indicates the operational type or data type of a Parameter, Field, or Property object.
Type (ADO Stream)
Indicates the type of data contained in the Stream (binary or text).
UnderlyingValue
Indicates a Field object's current value in the database.
URL (RDS)
Indicates a string that contains a relative or absolute URL.
Value
Indicates the value assigned to a Field, Parameter, or Property object.
Version
Indicates the ADO version number.
ADO Dynamic Property Summary
Dynamic properties can be added to the Properties collections of the Connection, Command, or Recordset objects. The source for these properties is either a data provider, such as the OLE DB Provider for SQL Server, or a service provider, such as the Microsoft Cursor Service for OLE DB. Refer to the appropriate data provider or service provider documentation for more information about a specific dynamic property.
The ADO Dynamic Property Index provides a cross-reference between the ADO and OLE DB names for each standard OLE DB provider dynamic property.
The following dynamic properties are of special interest, and are also documented in the sources mentioned above. Special functionality with ADO is documented in the ADO help topics listed below.
Property
Description
Optimize
Specifies whether an index should be created on this field.
Prompt
Specifies whether the OLE DB provider should prompt the user for initialization information.
Reshape Name
Specifies a name for the Recordset object.
Resync Command
Specifies a user-supplied command string that the Resync method issues to refresh the data in the table named in the Unique Table dynamic property.
Unique Table, Unique Schema, Unique Catalog
Unique Table — specifies the name of the base table upon which updates, insertions, and deletions are allowed.
Unique Schema — specifies the schema, or name of the owner of the table.
Unique Catalog — specifies the catalog, or name of the database containing the table.
Update Resync
Specifies whether the UpdateBatch method is followed by an implicit Resync method operation, and if so, the scope of that operation.
ADO Method Summary
Method
Description
AddNew
Creates a new record for an updatable Recordset object.
Append
Appends an object to a collection. If the collection is Fields, a new Field object may be created before it is appended to the collection.
AppendChunk
Appends data to a large text or binary data Field, or to a Parameter object.
BeginTrans, CommitTrans, and RollbackTrans
Manages transaction processing within a Connection object as follows:
BeginTrans — Begins a new transaction.CommitTrans — Saves any changes and ends the current transaction. It may also start a new transaction.RollbackTrans — Cancels any changes and ends the current transaction. It may also start a new transaction.
Cancel (ADO)
Cancels execution of a pending, asynchronous method call.
Cancel (RDS)
Cancels execution of a pending, asynchronous method call.
CancelBatch
Cancels a pending batch update.
CancelUpdate (ADO)
Cancels any changes made to the current or new row of a Recordset object, or the Fields collection of a Record object, before calling the Update method.
CancelUpdate (RDS)
Cancels any changes made to the current or new row of a Recordset object.
Clear
Removes all the Error objects from the Errors collection.
Clone
Creates a duplicate Recordset object from an existing Recordset object. Optionally, specifies that the clone be read-only.
Close
Closes an open object and any dependent objects.
CompareBookmarks
Compares two bookmarks and returns an indication of their relative values.
ConvertToString (RDS)
Converts a Recordset to a MIME string that represents the recordset data.
CopyRecord
Copies a file or directory, and its contents, to another location.
CopyTo
Copies the specified number of characters or bytes (depending on Type) in the Stream to another Stream object.
CreateObject (RDS)
Creates the proxy for the target business object and returns a pointer to it.
CreateParameter
Creates a new Parameter object with the specified properties.
CreateRecordset (RDS)
Creates an empty, disconnected Recordset.
Delete (ADO Parameters Collection)
Deletes an object from the Parameters collection.
Delete (ADO Fields Collection)
Deletes an object from the Fields collection.
Delete (ADO Recordset)
Deletes the current record or a group of records.
DeleteRecord
Deletes a file or directory, and all its subdirectories.
Execute (ADO Command)
Executes the query, SQL statement, or stored procedure specified in the CommandText property.
Execute (ADO Connection)
Executes the specified query, SQL statement, stored procedure, or provider-specific text.
Find
Searches a Recordset for the row that satisfies the specified criteria.
Flush
Forces the contents of the Stream remaining in the ADO buffer to the underlying object with which the Stream is associated.
GetChildren
Returns a Recordset whose rows represent the files and subdirectories in the directory represented by this Record.
GetChunk
Returns all, or a portion of, the contents of a large text or binary data Field object.
GetRows
Retrieves multiple records of a Recordset object into an array.
GetString
Returns the Recordset as a string.
LoadFromFile
Loads the contents of an existing file into a Stream.
Move
Moves the position of the current record in a Recordset object.
MoveFirst, MoveLast, MoveNext, and MovePrevious (ADO)
Moves to the first, last, next, or previous record in a specified Recordset object and makes that record the current record.
MoveFirst, MoveLast, MoveNext, MovePrevious (RDS)
Moves to the first, last, next, or previous record in a specified Recordset object.
MoveRecord
Moves a file, or a directory and its contents, to another location.
NextRecordset
Clears the current Recordset object and returns the next Recordset by advancing through a series of commands.
Open (ADO Connection)
Opens a connection to a data source.
Open (ADO Record)
Opens an existing Record object, or creates a new file or directory.
Open (ADO Recordset)
Opens a cursor.
Open (ADO Stream)
Opens a Stream object to manipulate streams of binary or text data.
OpenSchema
Obtains database schema information from the provider.
Query (RDS)
Uses a valid SQL query string to return a Recordset.
Read
Reads a specified number of bytes from a Stream object.
ReadText
Reads a specified number of characters from a text Stream object.
Refresh (ADO)
Updates the objects in a collection to reflect objects available from, and specific to, the provider.
Refresh (RDS)
Requeries the data source specified in the Connect property and updates the query results.
Requery
Updates the data in a Recordset object by re-executing the query on which the object is based.
Reset (RDS)
Executes the sort or filter on a client-side Recordset, based on the specified sort and filter properties.
Resync
Refreshes the data in the current Recordset object, or Fields collection of a Record object, from the underlying database.
Save
Saves the Recordset in a file or Stream object.
SaveToFile
Saves the binary contents of a Stream to a file.
Seek
Searches the index of a Recordset to quickly locate the row that matches the specified values, and changes the current row position to that row.
SetEOS
Sets the position that is the end of the stream.
SkipLine
Skips one entire line when reading a text stream.
SubmitChanges (RDS)
Submits pending changes of the locally cached and updatable Recordset to the data source specified in the Connect property.
Supports
Determines whether a specified Recordset object supports a particular type of functionality.
Update
Saves any changes you make to the current row of a Recordset object, or the Fields collection of a Record object.
UpdateBatch
Writes all pending batch updates to disk.
Write
Writes binary data to a Stream object.
WriteText
Writes a specified text string to a Stream object.
ADO Event Summary
Event
Description
BeginTransComplete
Called after the BeginTrans operation.
CommitTransComplete
Called after the CommitTrans operation.
ConnectComplete
Called after a connection starts.
Disconnect
Called after a connection ends.
EndOfRecordset
Called when there is an attempt to move to a row past the end of the Recordset.
ExecuteComplete
Called after a command has finished executing.
FetchComplete
Called after all the records in a lengthy asynchronous operation have been retrieved into the Recordset.
FetchProgress
Called periodically during a lengthy asynchronous operation to report how many rows have currently been retrieved into the Recordset.
FieldChangeComplete
Called after the value of one or more Field objects has changed.
InfoMessage
Called whenever a warning occurs during a ConnectionEvent operation.
MoveComplete
Called after the current position in the Recordset changes.
onError (RDS)
Called whenever an error occurs during an operation.
onReadyStateChange (RDS)
Called whenever the value of the ReadyState property changes.
RecordChangeComplete
Called after one or more records change.
RecordsetChangeComplete
Called after the Recordset has changed.
RollbackTransComplete
Called after the RollbackTrans operation.
WillChangeField
Called before a pending operation changes the value of one or more Field objects in the Recordset.
WillChangeRecord
Called before one or more records (rows) in the Recordset change.
WillChangeRecordset
Called before a pending operation changes the Recordset.
WillConnect
Called before a connection starts.
WillExecute
Called just before a pending command executes on this connection and affords the user an opportunity to examine and modify the pending execution parameters.
WillMove
The WillMove event is called before a pending operation changes the current position in the Recordset.
ADO Enumerated Constant Summary
Enumeration
Description
ADCPROP_ASYNCTHREADPRIORITY_ENUM
For an RDS Recordset object, specifies the execution priority of the asynchronous thread that retrieves data.
ADCPROP_AUTORECALC_ENUM
Specifies when the MSDataShape provider re-calculates aggregate and calculated columns in a hierarchical Recordset.
ADCPROP_UPDATECRITERIA_ENUM
Specifies which fields can be used to detect conflicts during an optimistic update of a row of the data source with a Recordset object.
ADCPROP_UPDATERESYNC_ENUM
Specifies whether the UpdateBatch method is followed by an implicit Resync method operation and if so, the scope of that operation.
AffectEnum
Specifies which records are affected by an operation.
BookmarkEnum
Specifies a bookmark indicating where the operation should begin.
CommandTypeEnum
Specifies how a command argument should be interpreted.
CompareEnum
Specifies the relative position of two records represented by their bookmarks.
ConnectModeEnum
Specifies the available permissions for modifying data in a Connection, opening a Record, or specifying values for the Mode property of the Record and Stream objects.
ConnectOptionEnum
Specifies whether the Open method of a Connection object should return after (synchronously) or before (asynchronously) the connection is established.
ConnectPromptEnum
Specifies whether a dialog box should be displayed to prompt for missing parameters when opening a connection to an ODBC data source.
CopyRecordOptionsEnum
Specifies the behavior of the CopyRecord method.
CursorLocationEnum
Specifies the location of the cursor engine.
CursorOptionEnum
Specifies what functionality the Supports method should test for.
CursorTypeEnum
Specifies the type of cursor used in a Recordset object.
DataTypeEnum
Specifies the data type of a Field, Parameter, or Property.
EditModeEnum
Specifies the editing status of a record.
ErrorValueEnum
Specifies the type of ADO run-time error.
EventReasonEnum
Specifies the reason that caused an event to occur.
EventStatusEnum
Specifies the current status of the execution of an event.
ExecuteOptionEnum
Specifies how a provider should execute a command.
FieldEnum
Specifies the special fields referenced in a Record object's Fields collection.
FieldAttributeEnum
Specifies one or more attributes of a Field object.
FilterGroupEnum
Specifies the group of records to be filtered from a Recordset.
GetRowsOptionEnum
Specifies how many records to retrieve from a Recordset.
IsolationLevelEnum
Specifies the level of transaction isolation for a Connection object.
LineSeparatorsEnum
Specifies the character used as a line separator in text Stream objects.
LockTypeEnum
Specifies the type of lock placed on records during editing.
MarshalOptionsEnum
Specifies which records should be returned to the server.
MoveRecordOptionsEnum
Specifies the behavior of the Record object MoveRecord method.
ObjectStateEnum
Specifies whether an object is open or closed, connecting to a data source, executing a command, or fetching data.
ParameterAttributesEnum
Specifies the attributes of a Parameter object.
ParameterDirectionEnum
Specifies whether the Parameter represents an input parameter, an output parameter, or both, or if the parameter is the return value from a stored procedure.
PersistFormatEnum
Specifies the format in which to save a Recordset.
PositionEnum
Specifies the current position of the record pointer within a Recordset.
PropertyAttributesEnum
Specifies the attributes of a Property object.
RecordCreateOptionsEnum
Specifies for the Record object Open method whether an existing Record should be opened, or a new Record should be created.
RecordOpenOptionsEnum
Specifies options for opening a Record. These values may be combined by using an OR operator.
RecordStatusEnum
Specifies the status of a record with regard to batch updates and other bulk operations.
RecordTypeEnum
Specifies the type of Record object.
ResyncEnum
Specifies whether underlying values are overwritten by a call to Resync.
SaveOptionsEnum
Specifies whether a file should be created or overwritten when saving from a Stream object. The values can be combined with an AND operator.
SchemaEnum
Specifies the type of schema Recordset that the OpenSchema method retrieves.
SearchDirectionEnum
Specifies the direction of a record search within a Recordset.
SeekEnum
Specifies the type of Seek to execute.
StreamOpenOptionsEnum
Specifies options for opening a Stream object. The values can be combined with an AND operator.
StreamReadEnum
Specifies whether the whole stream or the next line should be read from a Stream object.
StreamTypeEnum
Specifies the type of data stored in a Stream object.
StreamWriteEnum
Specifies whether a line separator is appended to the string written to a Stream object.
StringFormatEnum
Specifies the format when retrieving a Recordset as a string.
XactAttributeEnum
Specifies the transaction attributes of a Connection object.
ADO Error Code List
ErrorValueEnum
Specifies the type of ADO run-time error.
Three forms of the error number are listed:
Positive decimal—the low two bytes of the full number in decimal format. This number is displayed in the default Visual Basic error message dialog box. For example, Run-time error '3707'.
Negative decimal—The decimal translation of the full error number.
Hexadecimal—The hexadecimal representation of the full error number. The Windows facility code is in the fourth digit. The facility code for ADO error numbers is A. For example: 0x 800 A 0E7B.
Note OLE DB errors may be passed to your ADO application. Typically, these can be identified by a Windows facility code of 4. For example, 0x8004.... For more information about these numbers, see Chapter 16 of the OLE DB Programmer's Reference.
Constant
Value
Description
adErrBoundToCommand
3707-21468245810x 800A 0E7B
Cannot change the ActiveConnection property of a Recordset object which has a Command object as its source.
adErrCannotComplete
3732-21468245560x 800A 0E94
Server cannot complete the operation.
adErrCantChangeConnection
3748-21468245400x 800A 0EA4
Connection was denied. New connection you requested has different characteristics than the one already in use.
adErrCantChangeProvider
3220-21468250680X 800A 0C 94
Supplied provider is different from the one already in use.
adErrCantConvertvalue
3724-21468245640x 800A 0E 8C
Data value cannot be converted for reasons other than sign mismatch or data overflow. For example, conversion would have truncated data.
adErrCantCreate
3725-21468245630x 800A 0E8D
Data value cannot be set or retrieved because the field data type was unknown, or the provider had insufficient resources to perform the operation.
adErrCatalogNotSet
3747-21468245410x 800A 0EA3
Operation requires a valid ParentCatalog.
adErrColumnNotOnThisRow
3726-21468245620x 800A 0E8E
Record does not contain this field.
adErrDataConversion
3421-21468248670x 800A 0D5D
Application uses a value of the wrong type for the current operation.
adErrDataOverflow
3721-21468245670x 800A 0E89
Data value is too large to be represented by the field data type.
adErrDelResOutOfScope
3738-21468245500x 800A 0E 9A
URL of the object to be deleted is outside the scope of the current record.
adErrDenyNotSupported
3750-21468245380x 800A 0EA6
Provider does not support sharing restrictions.
adErrDenyTypeNotSupported
3751-21468245370x 800A 0EA7
Provider does not support the requested kind of sharing restriction.
adErrFeatureNotAvailable
3251-21468250370x 800A 0CB3
Object or provider is not capable of performing requested operation.
adErrFieldsUpdateFailed
3749-21468245390x 800A 0EA5
Fields update failed. For further information, examine the Status property of individual field objects.
adErrIllegalOperation
3219-21468250690x 800A 0C 93
Operation is not allowed in this context.
adErrIntegrityViolation
3719-21468245690x 800A 0E87
Data value conflicts with the integrity constraints of the field.
adErrInTransaction
3246-21468250420x 800A 0CAE
Connection object cannot be explicitly closed while in a transaction.
adErrInvalidArgument
3001-21468252870x 800A 0BB9
Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another.
adErrInvalidConnection
3709-21468245790x 800A 0E7D
Operation is not allowed on an object referencing a closed or invalid connection.
adErrInvalidParamInfo
3708-21468245800x 800A 0E 7C
Parameter object is improperly defined. Inconsistent or incomplete information was provided.
adErrInvalidTransaction
3714-21468245740x 800A 0E82
Coordinating transaction is invalid or has not started.
adErrInvalidURL
3729-21468245590x 800A 0E91
URL contains invalid characters. Make sure the URL is typed correctly.
adErrItemNotFound
3265-21468250230x 800A 0CC1
Item cannot be found in the collection corresponding to the requested name or ordinal.
adErrNoCurrentRecord
3021-21468252670x 800A 0BCD
Either BOF or EOF is True, or the current record has been deleted. Requested operation requires a current record.
adErrNotExecuting
3715-21468245730x 800A 0E83
Operation cannot be performed while not executing.
adErrNotReentrant
3710-21468245780x 800A 0E7E
Operation cannot be performed while processing event.
adErrObjectClosed
3704-21468245840x 800A 0E78
Operation is not allowed when the object is closed.
adErrObjectInCollection
3367-21468249210x 800A 0D27
Object is already in collection. Cannot append.
adErrObjectNotSet
3420-21468248680x 800A 0D 5C
Object is no longer valid.
adErrObjectOpen
3705-21468245830x 800A 0E79
Operation is not allowed when the object is open.
adErrOpeningFile
3002-21468252860x 800A 0BBA
File could not be opened.
adErrOperationCancelled
3712-21468245760x 800A 0E80
Operation has been cancelled by the user.
adErrOutOfSpace
3734-21468245540x 800A 0E96
Operation cannot be performed. Provider cannot obtain enough storage space.
adErrPermissionDenied
3720-21468245680x 800A 0E88
Insufficent permission prevents writing to the field.
adErrPropConflicting
3742-21468245460x 800A 0E9E
Property value conflicts with a related property.
adErrPropInvalidColumn
3739-21468245490x 800A 0E9B
Property cannot apply to the specified field.
adErrPropInvalidOption
3740-21468245480x 800A 0E 9C
Property attribute is invalid.
adErrPropInvalidValue
3741-21468245470x 800A 0E9D
Property value is invalid. Make sure the value is typed correctly.
adErrPropNotAllSettable
3743-21468245450x 800A 0E 9F
Property is read-only or cannot be set.
adErrPropNotSet
3744-21468245440x 800A 0EA0
Optional property value was not set.
adErrPropNotSettable
3745-21468245430x 800A 0EA1
Read-only property value was not set.
adErrPropNotSupported
3746-21468245420x 800A 0EA2
Provider does not support the property.
adErrProviderFailed
3000-21468252880x 800A 0BB8
Provider failed to perform the requested operation.
adErrProviderNotFound
3706-21468245820x 800A 0E 7A
Provider cannot be found. It may not be properly installed.
adErrReadFile
3003-21468252850x 800A 0BBB
File could not be read.
adErrResourceExists
3731-21468245570x 800A 0E93
Copy operation cannot be performed. Object named by destination URL already exists. Specify adCopyOverwrite to replace the object.
adErrResourceLocked
3730-21468245580x 800A 0E92
Object represented by the specified URL is locked by one or more other processes. Wait until the process has finished and attempt the operation again.
adErrResourceOutOfScope
3735-21468245530x 800A 0E97
Source or destination URL is outside the scope of the current record.
adErrSchemaViolation
3722-21468245660x 800A 0E 8A
Data value conflicts with the data type or constraints of the field.
adErrSignMismatch
3723-21468245650x 800A 0E8B
Conversion failed because the data value was signed and the field data type used by the provider was unsigned.
adErrStillConnecting
3713-21468245750x 800A 0E81
Operation cannot be performed while connecting aynchronously.
adErrStillExecuting
3711-21468245770x 800A 0E 7F
Operation cannot be performed while executing asynchronously.
adErrTreePermissionDenied
3728-21468245600x 800A 0E90
Permissions are insufficient to access tree or subtree.
adErrUnavailable
3736-21468245520x 800A 0E98
Operation failed to complete and the status is unavailable. The field may be unavailable or the operation was not attempted.
adErrUnsafeOperation
3716-21468245720x 800A 0E84
Safety settings on this computer prohibit accessing a data source on another domain.
adErrURLDoesNotExist
3727-21468245610x 800A 0E 8F
Either the source URL or the parent of the destination URL does not exist.
adErrURLNamedRowDoesNotExist
3737-21468245510x 800A 0E99
Record named by this URL does not exist.
adErrVolumeNotFound
3733-21468245550x 800A 0E95
Provider cannot locate the storage device indicated by the URL. Make sure the URL is typed correctly.
adErrWriteFile
3004-21468252840x 800A 0BBC
Write to file failed.
adWrnSecurityDialog
3717-21468245710x 800A 0E85
For internal use only. Don't use.
adWrnSecurityDialogHeader
3718-21468245700x 800A 0E86
For internal use only. Don't use.
