DBComboBox

Description

The DBComboBox class implements the DBComboBox development environment component that displays and edits data organized as a combined list.

Properties inherited from IDBComboBox

	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 links the DBComboBox component to the data set that contains the DataField field.
	Field	The Field property returns the parameters of the field, with which the component is connected.
	ReadOnly	The ReadOnly property determines, whether a user can change the value of the field of the current record.

Properties inherited from IComboBox

	Property name	Brief description
	DropDownCount	The DropDownCount property determines the maximum number of items, simultaneously displayed in a drop-down list.
	DroppedDown	The DroppedDown property returns True if the drop-down list of a component is expanded.
	ItemCount	The ItemCount property returns the number of rows in a drop-down list.
	ItemHeight	The ItemHeight property returns the height of elements (rows) of a drop-down list.
	ItemIndex	The ItemIndex property determines the index of the selected element of the list.
	Items	The Items property returns the component rows collection.
	MaxLength	The MaxLength property determines the maximum length of the entered text.
	SelLength	The SelLength property determines the length in characters of the selected text in the component.
	SelStart	The SelStart property determines the position to start text selection in the component.
	SelText	The SelText property determines text selected in the component.
	Sorted	The Sorted property determines whether the rows in the drop-down list must be automatically sorted in alphabetical order.
	Style	The Style property determines the display style of the component.

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 that determine the percentage of the size change for the current component when the parent component is resized.
	Brush	The Brush property specifies the brush 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 the background color of a component.
	Cursor	The Cursor property determines how the cursor looks like when you hover over a component during form execution.
	Enabled	The Enabled property determines whether a component is available for a user.
	Focused	The Focused property returns True if the focus is set on the component.
	Font	The Font property defines the parameters of the font used to display text in a component.
	Height	The Height property determines the component height (pixels).
	HelpContext	The HelpContext property determines the unique index for a section of a context help for this component.
	Hint	The Hint property determines the tip text displayed if the mouse pointer is hovered over a component.
	HintTimeout	The HintTimeout determines the time for which the tooltip is displayed.
	Left	The Left property determines the coordinate of the component left edge (pixels).
	Parent	The Parent property determines the 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 should use 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 a component is clicked using the right mouse button.
	Scrolls	The Scrolls property returns parameters of component's scroll bars.
	ShowHint	The ShowHint property determines whether a tool tip should be displayed when you hover over a component.
	TabOrder	The TabOrder property determines the position of a component in a tab order.
	TabStop	The TabStop property determines whether the focus is set to a component when the Tab button is pressed.
	Text	The Text property determines the row identifying a component for a user.
	Top	The Top property determines the coordinate of the component upper edge (pixels).
	Visible	The Visible property determines whether a component is displayed when a form is executed.
	Width	Свойство Width определяет ширину компонента в пикселях.

Properties inherited from IComponent

	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, the index of which 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.

Methods inherited from IComboBox

	Method name	Brief description
	ClearEdit	The ClearEdit method clears the input field.
	SelectAll	The SelectAll method selects all component items.

Methods inherited from IControl

	Method name	Brief description
	BringToFront	Outdated. The BringToFront method brings a component to the foreground.
	ClientToScreen	The ClientToScreen method converts the coordinates of a point specified relative to the component coordinate system to screen coordinates.
	DoDragDrop	The DoDragDrop method enables to start drag-and-drop operation.
	GetImage	The GetImage method returns a graphic presentation of a component together with all children.
	ScreenToClient	The ScreenToClient method converts screen coordinates of a point to coordinates specified relative to the component coordinate system.
	SendToBack	Outdated. The SendToBack method is used to send a component to the background.
	SetFocus	The SetFocus method sets focus to this component.

Events inherited from ComboBox

	Event name	Brief description
	OnChange	The OnChange event occurs when the text in the component edit field is changed.
	OnDropDown	The OnDropDown event occurs at zooming combined list .
	OnItemSelect	The OnItemSelect event occurs when an element is selected from the list.

Events inherited from IControl

	Event name	Brief description
	OnBeginDrag	The OnBeginDrag event occurs for a component, when a user starts to drag an object from the component.
	OnClick	The OnClick event occurs if a user clicks a component area using the main mouse button.
	OnControlMove	The OnControlMove event occurs when a component is moved.
	OnControlResize	The OnControlResize event occurs when a component is resized.
	OnDblClick	The OnDblClick event occurs if a user double-clicks a component area using the mouse button.
	OnDragDrop	The OnDragDrop event occurs for a component if a user drops a dragged object over it.
	OnDragEnter	The OnDragEnter event occurs when a dragged object crosses the borders of this component.
	OnDragLeave	The OnDragLeave event occurs when a dragged object leaves the borders of this component.
	OnDragOver	The OnDragOver event occurs for this component when a user drags a dragged object over it.
	OnEnter	The OnEnter event occurs when a component receives focus.
	OnExit	The OnExit event occurs when a component loses focus.
	OnHScroll	The OnHScroll event occurs when the horizontal scrollbar thumb changes its position.
	OnKeyDown	The OnKeyDown event occurs if a component is focused and a keyboard key is pressed.
	OnKeyPress	The OnKeyPress event occurs if a component is focused when a user presses a character key.
	OnKeyPreview	The OnKeyPreview event occurs prior to each event requiring clicking.
	OnKeyUp	The OnKeyUp event occurs if a component is focused and a user releases any button previously pressed.
	OnMouseDown	The OnMouseDown event occurs if the pointer is in component's 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 the 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 on moving the cursor over component.
	OnMouseUp	The OnMouseUp event occurs on releasing mouse button when the pointer is in component area.
	OnMouseWheel	The OnMouseWheel event occurs if the component has focus when the mouse wheel is rotated.
	OnVScroll	The OnVScroll event occurs when the vertical scrollbar thumb changes its position.

See also:

ExtCtrls Assembly Classes