DBLookupComboBox

The DBLookupComboBox class implements the DBLookupComboBox development environment component that edits data by using the values formed from the element of the other data set and displayed as a combobox.

Properties inherited from IDBLookupComboBox

Properties inherited from IDBLookupControl

	Property name	Brief description
	DataField	The DataField property determines the field of the data source, which should be displayed by this component.
	DataSource	The DataSource property binds a component of the Data Access group to the data set stored in the DataField field.
	Field	The Field property returns the parameters of the field, with which the component is connected.
	KeyField	The KeyField property determines the field in the ListSource data set, which value must correspond to value of the DataField field.
	KeyValue	The KeyValue property determines the value of a key field in the active row of the data source.
	ListField	The ListField property determines one or more fields, which values are displayed in this component.
	ListSource	The ListSource property determines data source for the search component, that is the source that contains the KeyField and ListField fields.
	ReadOnly	The ReadOnly property determines whether component data can be edited.

Properties inherited from IControl

	Property name	Brief description
	Align	The Align property determines component alignment within its parent component.
	AllowDrag	The AllowDrag property determines whether an object can be dragged from a component.
	AllowDrop	The AllowDrop property determines whether the component can accept a dragged object.
	Anchors	The Anchors property returns settings determining % of the resize for the current component when the parent component is resized.
	Brush	The Brush property determines the brush that is used to fill the component area.
	ClientHeight	The ClientHeight property determines the height of the client component area.
	ClientWidth	The ClientWidth property determines the width of the client component area.
	Color	The Color property determines color of the component background.
	Cursor	The Cursor property determines how the cursor looks like when is it hovered over a component during form execution.
	Enabled	The Enabled property determines whether a component is available for the user.
	Focused	The Focused property returns True if the focus is set to the component.
	Font	The Font property determines parameters of the font that is used to display text in the component.
	Height	The Height property determines component height in pixels.
	HelpContext	The HelpContext property determines a unique index for a section of a context help for this component.
	Hint	The Hint property determines a tooltip text displayed on hovering over the component.
	HintTimeout	The HintTimeout property determines for how long a tooltip is displayed.
	Left	The Left property determines a coordinate of the component left edge in pixels.
	Parent	The Parent property determines a parent component.
	ParentColor	The ParentColor property determines whether a component inherits the color of the parent component.
	ParentFont	The ParentFont property determines whether a component uses the font of the parent component.
	ParentShowHint	The ParentShowHint property determines when a tooltip is displayed.
	PopupMenu	The PopupMenu property determines the context menu displayed when the component is clicked with the right mouse button.
	Scrolls	The Scrolls property returns parameters of component's scrollbars.
	ShowHint	The ShowHint property determines whether a tooltip is displayed when the component is hovered.
	TabOrder	The TabOrder property determines a component position in a tab order.
	TabStop	The TabStop property determines whether the component must be focused when the Tab button is pressed.
	Text	The Text property determines a row identifying a component for the user.
	Top	The Top property determines a coordinate of the component top edge in pixels.
	Visible	The Visible property determines whether the component is displayed when a form is executed.
	Width	The Width property sets component width in pixels.

Properties inherited from IComponent

Methods inherited from IControl

	Method name	Brief description
	ClientToScreen	The ClientToScreen method converts point coordinates specified relative to the component's coordinate system into screen coordinates.
	DoDragDrop	The DoDragDrop method enables the user to start dragging operation.
	GetImage	The GetImage method returns a graphic presentation of a component together with all child components.
	ScreenToClient	The ScreenToClient method converts point's screen coordinates into coordinates specified relative to the component's coordinate system.
	SetFocus	The SetFocus method sets focus to this component.

Events

Events inherited from IControl

	Event name	Brief description
	OnBeginDrag	The OnBeginDrag event occurs for the component when the user starts to drag an object from the component.
	OnClick	The OnClick event occurs if the user clicks the component area.
	OnControlMove	The OnControlMove event occurs when the component is moved.
	OnControlResize	The OnControlResize event occurs when the component is resized.
	OnDblClick	The OnDblClick event occurs if the user double-clicks the component area.
	OnDragDrop	The OnDragDrop event occurs for the component if the user drops a dragged object over it.
	OnDragEnter	The OnDragEnter event occurs when a dragged object enters the component area.
	OnDragLeave	The OnDragLeave event occurs when a dragged object leaves component borders.
	OnDragOver	The OnDragOver event occurs for the component when the user drags an object over it.
	OnEnter	The OnEnter event occurs when the component receives focus.
	OnExit	The OnExit event occurs when the component loses focus.
	OnHScroll	The OnHScroll event occurs when horizontal scrollbar slider changes its position.
	OnKeyDown	The OnKeyDown event occurs if the component is focused and a keyboard key is pressed.
	OnKeyPress	The OnKeyPress event occurs if the component is focused when the user presses a character key.
	OnKeyPreview	The OnKeyPreview event occurs prior to each event related to key pressing.
	OnKeyUp	The OnKeyUp event occurs if the component is focused and the user releases any button previously pressed.
	OnMouseDown	The OnMouseDown event occurs if the pointer is in the component area and a mouse key is pressed.
	OnMouseEnter	The OnMouseEnter event occurs when mouse cursor enters the component area.
	OnMouseHover	The OnMouseHover event occurs when mouse cursor is held in the component area.
	OnMouseLeave	The OnMouseLeave event occurs when mouse cursor leaves the component area.
	OnMouseMove	The OnMouseMove event occurs when the cursor is moved over the component.
	OnMouseUp	The OnMouseUp event occurs when the mouse button is released and the cursor is in the component area.
	OnMouseWheel	The OnMouseWheel event occurs if the component is focused when the user rotates a mouse wheel.
	OnVScroll	The OnVScroll event occurs when vertical scrollbar slider changes its position.

	Property name	Brief description
	DropDownRows	The DropDownRows property determines the number of displayed elements of a combobox.
	ListVisible	The ListVisible property returns the value of visibility of combobox elements.

	Property name	Brief description
	ComponentCount	The ComponentCount property returns the number of child components located on the parent component.
	Components	The Components property returns a child component, which index is passed via the input parameter.
	Data	The Data property is used to store any custom data.
	Name	The Name property determines the component name.
	Tag	The Tag property is not used by the compiler. The user can change the value of this property and use it at his discretion.

	Event name	Brief description
	OnCloseUp	The OnCloseUp event occurs on collapsing the DBLookupComboBox component list.
	OnDropDown	The OnDropDown event occurs on expanding the DBLookupComboBox component list.