RAD Studio VCL Reference
TCustomComboBox Class

TCustomComboBox is the base class for combobox components.

TCustomComboBox = class(TCustomCombo);
class TCustomComboBox : public TCustomCombo;

Use TCustomComboBox as a base class when defining a control that represents a specialized Windows combo box. A combo box is an edit box with a scrollable list attached to it; users can select an item from the list or type directly into the edit box. Combo boxes can present the list as a drop-down list or as a list box that is always visible.

Note: To create a combo box class that uses the extended combo box features such as images associated with entries, do not use TCustomComboBox. Instead, use the TCustomComboBoxEx class instead.
Do not create instances of TCustomComboBox. To put a combo box in a form, use a descendant of TCustomComboBox, such as TComboBox


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