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

# TCustomComboBox.CloseUp

Called when the drop-down list is closed.

## Declaration

Source position: stdctrls.pp line 363

`protected procedure TCustomComboBox.CloseUp; virtual;`

## Description

CloseUp is a method called whenever the drop-down list for the control is closed. CloseUp is called when a CN_Command message with a CBN_CLOSEUP notification code is received in the control.

CloseUp does not perform any actions in the method at design-time, when the component is being loaded using LCL streaming, or when the control is freed.

CloseUp signals the OnEditingDone event handler when an edit box is enabled in the Style property in the control. The OnCloseUp event handler is signalled (when assigned).

When AutoSelect is enabled, the SelectAll method is called and the AutoSelected property is updated.

## See also

TComboBox.OnEditingDone |  | Event handler signalled when editing is completed for the control.
TCustomComboBox.OnCloseUp |  | Handler invoked when the drop-down list closes.
TCustomComboBox.DroppedDown |  | Indicates whether the drop-down list has been displayed.
TCustomComboBox.DropDown |  | Signals the OnDropDown event handler.
TCustomComboBox.Style |  | Controls the appearance and behavior for the combo-box.
TCustomComboBox.SelectAll |  | Selects the text content in the edit box for the control.
TCustomComboBox.AutoSelect |  | Selects the entire content of the edit box when the control receives the focus.
TCustomComboBox.AutoSelected |  | True indicates that the selection was marked automatically by the control.