[Overview][Constants][Types][Classes][Index] | Reference for unit 'fgl' (#rtl)

# TFPGMapObject.Keys

Indexed access to the keys in the list.

## Declaration

Source position: fgl.pp line 382

`public property TFPGMapObject.Keys[Index: Integer] : TKey read GetKey write PutKey;`

## Description

Keys provides indexed access to the key values in the list. Valid values for Index are in the range [0..Count-1]. Key values can always be read, but can only be written if the list is unsorted.

## Errors

If the index AIndex is out of range [0..Count-1], an EListError exception will be raised. The same exception is raised if a key is written and the list is sorted.

## See also

TFPSList.Count |  | Current element count
TFPGMapObject.Data |  | Indexed access to the data in the list
TFPGMapObject.KeyData |  | Access to data based on key

Documentation generated on: May 14 2021