TDAMemDataTable

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Overview

TDAMemDataTable is a TDADataTable implementation based on the TDAMemoryDataset class.

TDAMemDataTable = class(TDADataTable,IDAMemDatasetBatchAdding,IDARangeController)

Property	Type	Description
AutoCompactRecords	boolean	Allows to compact records for decreasing required memory and increasing performance. Is recommended for read-only datatables. New mode is more appropriated for textdata which has a big string fields and is filled only partially and less appropriate for "numeric" data (integer/datatable/float/etc).
IndexDefs	TIndexDefs	Contains information about the indexes for the datatable.
IndexName	string	Identifies an index for the datatable.
IndexFieldNames	string	Lists the fields to use as an index.

Method	Description
ApplyRange	Applies a range to the datatable.
CancelRange	Removes any ranges currently in effect for the datatable.
CloneCursor	Shares the data belonging to another datatable.
EditKey	Enables modification of the search key buffer.
EditRangeEnd	Enables changing the ending value for an existing range.
EditRangeStart	Enables changing the starting value for an existing range.
FindKey	Searches for a record containing specified field values.
FindNearest	Moves the cursor to the record that most closely matches a specified set of key values.
GotoKey	Moves the cursor to a record specified by the current key.
GotoNearest	Moves the cursor to the record that most closely matches the current key.
LocateByIndex	Searches the datatable for a specified record by specified index and makes that record the current record.
LookupByIndex	Retrieves field values from a record that matches specified search values by specified index.
PrepareIndexForSorting	prepare specified index
SetKey	Enables setting of keys and ranges for a datatable prior to a search.
SetRange	Sets the starting and ending values of a range, and applies it.
SetRangeEnd	Indicates that subsequent assignments to field values specify the end of the range of rows to include in the datatable.
SetRangeStart	Indicates that subsequent assignments to field values specify the start of the range of rows to include in the datatable.