TMyDataSetOptions Properties

Properties of the TMyDataSetOptions class.

For a complete list of the TMyDataSetOptions class members, see the TMyDataSetOptions Members topic.


Name Description

CacheCalcFields (inherited from TDADataSetOptions)

Used to enable caching of the TField.Calculated and TField.Lookup fields.

CompressBlobMode (inherited from TDADataSetOptions)

Used to store values of the BLOB fields in compressed form.

DetailDelay (inherited from TDADataSetOptions)

Used to get or set a delay in milliseconds before refreshing detail dataset while navigating master dataset.

FieldsOrigin (inherited from TDADataSetOptions)

Used for TCustomDADataSet to fill the Origin property of the TField objects by appropriate value when opening a dataset.

FlatBuffers (inherited from TDADataSetOptions)

Used to control how a dataset treats data of the ftString and ftVarBytes fields.

InsertAllSetFields (inherited from TDADataSetOptions)

Used to include all set dataset fields in the generated INSERT statement

LocalMasterDetail (inherited from TDADataSetOptions)

Used for TCustomDADataSet to use local filtering to establish master/detail relationship for detail dataset and does not refer to the server.

LongStrings (inherited from TDADataSetOptions)

Used to represent string fields with the length that is greater than 255 as TStringField.

MasterFieldsNullable (inherited from TDADataSetOptions)

Allows to use NULL values in the fields by which the relation is built, when generating the query for the Detail tables (when this option is enabled, the performance can get worse).

UpdateAllFields (inherited from TDADataSetOptions)

Used to include all dataset fields in the generated UPDATE and INSERT statements.

UpdateBatchSize (inherited from TDADataSetOptions)

Used to get or set a value that enables or disables batch processing support, and specifies the number of commands that can be executed in a batch.


Name Description


Used to execute automatic TCustomDADataSet.Prepare on a query execution.


Used to automatically refresh dataset every AutoRefreshInterval seconds.


Used to define in what time interval in seconds the Refresh or TCustomMyDataSet.RefreshQuick method of a DataSet is called.


Used to specify a method of representation of the BINARY and VARBINARY fields.


Used to determine whether a dataset checks for rows modifications made by another user on automatic generation of SQL statement for update or delete data.


Used to specify if an additional connection to a server should be established to execute an additional query in the TCustomMyDataSet.FetchAll=False mode.


Used to fill the DefaultExpression property of TField objects with appropriate value.


Used to specify the method of representation of the TINYINT(1) fields.


Used to store all non-BLOB fields as string (native MySQL format).


Used to specify the fields to include in automatically generated SQL statement when calling the TCustomDADataSet.RefreshRecord method. Default value is false.


Used for MySQL server to represent the value for for datetime fields with invalid values as Null or '0001-01-01' ('0100-01-01' for CLR).


Used to set the MaxValue and MinValue properties of TIntegerField and TFloatField to appropriate values.


Used for TCustomDADataSet to perform additional query to get record count for this SELECT so the RecordCount property reflects the actual number of records.


Used for TCustomMyDataSet to quote all field names in autogenerated SQL statements.


Used for dataset to remove a record locally if the RefreshRecord procedure can't find necessary record on the server.


Used for TCustomDADataSet to set the Required property of TField objects for NOT NULL fields.


Used to return the new value of the fields to dataset after insert or update.


Used to save BLOB data in hexadecimal format in a database after calling the TMyQuery.SaveToXML method.


Force replace of empty strings with NULL values in data. The default value is False.


Used to specify whether fields not belonging to the current updating table get read-only attribute.


Used for TCustomDADataSet to raise an exception when the number of updated or deleted records does not equal 1.


Used to specify whether to discard all trailing spaces in string fields of the dataset.


Used to specify whether to discard all trailing spaces in the variable-length string fields of a dataset.

See Also

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