The PPComboBox component is an analog of the ComboBox component that has its own style similar to that of Prognoz Platform 9.
Unlike ComboBox, style of the PPComboBox component does not depend on style and settings of the operating system. Functional settings and features of the PPComboBox and ComboBox components are identical.
| 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 the component. | |
AllowDrop |
The AllowDrop property determines whether the component can accept the 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 the component. | |
ComponentCount |
The ComponentCount property returns the number of child components. | |
Components |
The Components property returns a child component. | |
Cursor |
The Cursor property determines how the cursor looks like when you hover over a component during form execution. | |
Data |
The Data property is used to store any custom data. | |
DropDownCount |
The DropDownCount property determines the maximum number of items, simultaneously displayed in a drop-down menu. | |
DroppedDown |
The DroppedDown property returns True if the drop-down menu of a component is expanded. | |
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 this component. | |
Font |
The Font property determines the set of characteristics, describing the font, used to display text. | |
Height |
The Height property determines the component height. | |
HelpContext |
The HelpContext property determines the unique index for a section of a context help for this component. | |
Hint |
The Hint property determines the hint text for the component. | |
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 determines the component element collection. | |
Left |
The Left property determines the coordinate of the left border of the component. | |
MaxLength |
The MaxLength property determines the maximum length of the entered text. | |
Name |
The Name property determines the component name. | |
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 whether a tooltip is displayed. | |
PopupMenu |
The PopupMenu property determines the context menu to be displayed on right-click. | |
Scrolls |
The Scrolls property returns parameters of component's scrollbars. | |
SelLength |
The SelLength property determines the number of characters selected in the component text. | |
SelStart |
The SelStart property determines the position of the cursor from where the selection of the component text is started. | |
SelText |
The SelText property determines text, selected in the component. | |
ShowHint |
The ShowHint property enables and disables showing a hint for the component. | |
Sorted |
The Sorted property determines whether the rows in the drop-down menu must be automatically sorted in alphabetical order. | |
Style |
The Style property determines the display style of the component. | |
TabOrder |
The TabOrder property determines the component position in the tab order. | |
TabStop |
The TabStop property determines whether the focus is set to a component when the TAB button is pressed. | |
Tag |
The Tag property is not used by the compiler. A user can change the value of the Tag property and use it as he wishes. | |
Text |
The Text property determines the row identifying a component for a user. | |
Top |
The Top property determines the coordinate of the top border of the component. | |
Visible |
The Visible property determines the visibility of the component during execution. | |
Width |
The Width property determines the component width. |
| Method name | Brief description | |
BringToFront |
The BringToFront method brings a component to front. | |
ClearEdit |
The ClearEdit method allows to clear the input field. | |
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 dragging operation. | |
GetImage |
The GetImage method returns the image of the component with all the child components. | |
SelectAll |
The SelectAll method allows to select all component items. | |
ScreenToClient |
The ScreenToClient method converts screen coordinates of a point to coordinates specified relative to the component coordinate system. | |
SendToBack |
The SendToBack method sends a component to back. | |
SetFocus |
The SetFocus method sets focus to this component. |
| Event name | Brief description | |
OnBeginDrag |
The OnBeginDrag event occurs for a component, when a user starts to drag an object from the component. | |
OnChange |
The OnChange event occurs when the text in the component edit field is changed. | |
OnClick |
The OnClick event occurs if a user clicks a component area using the main mouse button. | |
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. | |
OnDropDown |
The OnDropDown event occurs when a drop-down menu appears. | |
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 on changing position of horizontal scrollbar slider. | |
OnItemSelect |
The OnItemSelect event occurs, when an element is selected from the list. | |
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 cursor is in component's area and a mouse button is pressed. | |
OnMouseEnter |
The OnMouseEnter occurs when the mouse cursor enters the component's area. | |
OnMouseHover |
The OnMouseHover event occurs when the mouse cursor lingers in component area. | |
OnMouseLeave |
The OnMouseLeave event occurs when the mouse cursor leaves the component area. | |
OnMouseMove |
The OnMouseMove event occurs when the mouse cursor is moved over the component. | |
OnMouseUp |
The OnMouseUp event occurs if user releases mouse button when the cursor is in the component area. | |
OnMouseWheel |
The OnMouseWheel event occurs if a component is focused when a user rotates mouse wheel. | |
OnVScroll |
The OnVScroll event occurs on changing position of vertical scrollbar slider. |
See also: