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

# TCustomComboBox.Select

Signals the OnSelect event handler when ItemIndex is changed.

## Declaration

Source position: stdctrls.pp line 359

`protected procedure TCustomComboBox.Select; virtual;`

## Description

Select is a procedure called when the item selection in the drop-down list for the control has changed. This can happen when text is entered and auto-completion is enabled, or when a new value is selected from the drop-down list.

Select signals the OnSelect event handler (when assigned). For Delphi compatibility, the event handler is not signalled when ItemIndex contains -1 (Text is not located in the Items for the control).

## See also

TCustomComboBox.OnSelect |  | Handler invoked when an item is selected.
TCustomComboBox.Items |  | The list of items displayed in the combo-box control.
TCustomComboBox.ItemIndex |  | The index of the currently selected item, or -1 if no item is selected.
TCustomComboBox.AutoComplete |  | Positions the list box using partial text matching.
TCustomComboBox.AutoCompleteText |  | Options for the behavior of the Auto-Complete feature.
TCustomComboBox.Text |  | The value in the edit box for the control.
TCustomComboBox.SelText |  | The selected text in the edit box for the control.
TCustomComboBox.SelStart |  | zero-based index to the UTF-8 character at the beginning of the selected text in the edit box.
TCustomComboBox.SelLength |  | The number of selected UTF-8 characters in the edit box.