TcxCustomComboBoxProperties Class

The base class for all classes that implement combo box editor settings.

Declaration

TcxCustomComboBoxProperties = class(
    TcxCustomDropDownEditProperties,
    IcxValueByItemIndexProvider
)

Remarks

Combo box settings allow you to customize appearance and behavior of the following editors that display a drop-down window populated with menu items:

TcxComboBox | TcxDBComboBox: A general purpose combo box editor.
TcxFontNameComboBox | TcxDBFontNameComboBox: A combo box editor that allows users to switch between font typefaces.
TcxColorComboBox | TcxDBColorComboBox: A combo box designed to select a color.
TcxMRUEdit | TcxDBMRUEdit: A text editor designed to display a list of most recently used (MRU) items in a drop-down window.
TcxLookupComboBox | TcxDBLookupComboBox: A combo box editor whose drop-down window is populated with field values from the bound dataset.

Main API Members

The list below outlines key members of the TcxCustomComboBoxProperties class that allow you to configure a drop-down menu and related functionality.

Specify if the drop-down menu automatically adjusts its width to display menu items in full (DropDownAutoWidth).
Explicitly define drop-down window width (DropDownWidth).
Allow users to resize the drop-down window (DropDownSizeable).
Switch between available user input modes (DropDownListStyle).
Disable the drop-down window in read-only mode (AllowDropDownWhenReadOnly).
Change the number of simultaneously visible menu items in the drop-down window (DropDownRows).
Populate the list of expressions for automatic user input completion (Items).
Allow users to double-click the editor to switch between items (Revertable).
Adjust the height of individual drop-down menu items (OnMeasureItem).
Custom draw drop-down menu items (OnDrawItem).

Terminal TcxCustomComboBoxProperties Class Descendants

Do not use the TcxCustomComboBoxProperties class directly. Use the following descendants instead:

TcxComboBoxProperties: Stores combo box editor settings.
TcxColorComboBoxProperties: Stores color combo box settings.
TcxFontNameComboBoxProperties: Stores settings of a font name combo box editor (also called font picker).
TcxImageComboBoxProperties: Contains settings specific to image combo box editors.
TcxCustomLookupEditProperties: Contains settings specific to lookup editors.
TcxMRUEditProperties: Contains settings specific to MRU editors.