[Overview][Constants][Types][Classes][Procedures and functions][Index] | Reference for unit 'contnrs' (#fcl)

# TFPDataHashTable

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Hash table for data pointers

## Declaration

Source position: contnrs.pp line 410

`type TFPDataHashTable = class(TFPCustomHashTable)`
`protected`
`function CreateNewNode(); override;`
`procedure AddNode(); override;`
`procedure SetData(); virtual;`
`function GetData(); virtual;`
`function ForEachCall(); virtual;`
`public`
`procedure Add(); virtual;` |  | Add a data pointer to the list.
`property Items: Pointer; default; [rw]` |  | Key-based access to the items in the table
`end;`

## Inheritance

`TFPDataHashTable` |  | Hash table for data pointers
`TFPCustomHashTable` |  | Hash class
`TObject`

## Description

TFPDataHashTable is a TFPCustomHashTable descendent which stores simple data pointers together with the keys. In case the data associated with the keys are objects, it's better to use TFPObjectHashTable, or for string data, TFPStringHashTable is more suitable. The data pointers are exposed with their keys through the Items property.

## See also

TFPObjectHashTable |  | Hash table for object instances
TFPStringHashTable |  | Hash table for string data.
Items |  | Key-based access to the items in the table

The latest version of this document can be found at lazarus-ccr.sourceforge.net .