Assembly: Forms;
The ITreeControl interface contains base properties and methods of components displaying tree-like hierarchical structures.
ITreeControl
The interface is a base one for the following development environment components:
These components implement the events, the list of which is represented in this section.
Property name | Brief description | |
The AdjustWidthOnlyVisible property determines the method of auto adjusting column width. | ||
The AutoCheckParent property determines whether the parent nodes of the component automatically receive an indefinite state, if not all of the child elements are selected. | ||
The BorderStyle property determines a style of the frame that outlines the component. | ||
The Checkboxes property determines whether component elements have checkboxes. | ||
The ColumnClick property determines whether column headers can be displayed as buttons. | ||
The Columns property returns the collection of component columns. | ||
The DropTargetNode property determines the node of the component, over which user is dragging another node at the moment. | ||
The EnableFindDialog property determines whether pressing CTRL+F or F3 hot keys opens a standard dialog box of elements search. | ||
The FindMode property determines the mode of selection of found elements. | ||
The FocusedNode property determines the node that is focused at the moment. | ||
The GridLines property determines whether the grid is displayed. | ||
The HeaderMenu property determines the context menu that opens on clicking the additional mouse button on the component column header. | ||
The HideSelection property determines whether the selection is displayed in the component when the focus is passed to another component. | ||
The HighlightTrack property determines whether to highlight element on mouse over. | ||
The HotTrack property determines whether the element, over which the mouse cursor hovers, is underlined. | ||
The HotTrackAutoExpand property determines whether the state of the child elements tree is changed on clicking on the selected element. | ||
The Images property determines a list of images displayed next to the elements of component tree. | ||
The InnerRoot property returns parameters of the inner root node of the tree. | ||
The Locked property determines whether it is possible to change selection and edit element text in the component. | ||
The Nodes property returns the collection of component elements. | ||
The ReadOnly property determines whether text of elements of the TreeList component can be edited. | ||
The RowSelect property determines whether it is necessary to highlight the whole string of the selected element. | ||
The Selected property returns the last selected element of the tree. | ||
The Selection property returns the selection of the elements tree. | ||
The SelectionMode property determines the mode of selection of component elements. | ||
The ShowButtons property determines whether the buttons of expanding and collapsing of the nodes child tree are displayed. | ||
The ShowColumnHeaders property determines whether column headers are displayed. | ||
The ShowHeaderButton property determines whether to show the button that opens column headers menu. | ||
The ShowHints property determines whether tooltips are displayed when the mouse hovers over elements. | ||
The ShowLines property determines whether the line that connects the node with its children is displayed. | ||
The SortColumn property determines index of the column, by which sorting is executed. | ||
The Sorted property determines whether it is possible to sort by the column specified in the SortColumn property. | ||
The SortType property determines a type of sorting for the component. | ||
The StateImages property determines a list of images that are used to indicate the condition of component tree elements. |
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 a 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 a component background color. | |
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 a 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 a 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 that opens 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 a 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 determines horizontal size of a component in pixels. |
Property name | Brief description | |
ComponentCount | The ComponentCount property returns the number of child components located on the parent component. | |
Components | The Components property returns the child component, which index is passed by the input parameter. | |
Data | The Data property is used to store any custom data. | |
Name | The Name property determines a component name. | |
Tag | The compiler does not use the Tag property. The user can change the value of the Tag property and use it as he wishes. |
Method name | Brief description | |
AdjustWidth | The AdjustWidth method automatically adjusts width of the column taking into account its contents. | |
GetItemAt | The GetItemAt method checks if there is an element in the specified point of client component area. | |
HitTest | The HitTest method checks if there is an element in the specified point of client component area and returns check result. | |
Sort | The Sort method sorts elements of the specified column in the specified direction. | |
SortDefault | The SortDefault method executes ascending sorting of component elements. |
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. |
See also: