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

# TFPObjectList.IndexOf

Search for an object in the list

## Declaration

Source position: contnrs.pp line 53

`public function TFPObjectList.IndexOf(`
`AObject: TObject`
`):Integer;`

## Arguments

`AObject` |  | Object instance to search for.

## Function result

Index of the object in the list, -1 if not present.

## Description

IndexOf searches for the presence of AObject in the list, and returns the location (index) in the list. The index is 0-based, and -1 is returned if AObject was not found in the list.

## Errors

None.

## See also

TFPObjectList.Items |  | Indexed access to the elements of the list.
TFPObjectList.Remove |  | Remove an item from the list.
TFPObjectList.Extract |  | Extract an object from the list

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