Properties associated with the rows of a TreeView control

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Help / Developing an application or website / Controls, windows and pages / Controls: Available types / TreeView control

Overview
Available properties
Properties available in a window
Properties available in a page (server code)

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The TreeView control

Properties associated with the rows of a TreeView control

Overview

The rows of TreeView controls in a window or page can be manipulated using different WLanguage properties.

Note To manipulate a line in a TreeView control with WLanguage properties, use:

The notation is: <Tree field name>[<Element index>]..<Property>.
Let the notation: <Tree Field Name>[<Element Path>]..<Property>.

Available properties

Properties available in a window

The following properties can be used with the rows of a TreeView control:


AddChildDelayed	The AddChildDelayed property indicates the procedure to be called when a row in a TreeView or TreeView Table control is clicked to be expanded.
BackgroundColor	The BackgroundColor property is used to set the background color of a control, window, page or block of a report.
Checked	The Checked property gets and sets the checkmark state of an element.
CheckmarkVisible	The CheckmarkVisible property is used to: Determine whether a checkmark is displayed to the left of a row in a TreeView control. Show or hide a checkmark to the left of a row in a TreeView control.
Color	The Color property gets or sets the font color of: a Font variable. text displayed in a Static or Calculated control of a report. text displayed in a window control. text displayed in a page control.
FolderImageWidth	The FolderImageWidth property gets and sets the folder image width in TreeView and TreeView Table controls.
Font	The Font property is used to Get the identifier of the font used in a control in a report, page or window. Change the font used in a control in a report, page or window.
FontBold	The FontBold property is used to: Determine if the text is bold. Change the weight of the text.
FontCharset	The FontCharset property is used to: Find out the character set used by the screen fonts of a control. Modify the character set used by the screen fonts of a control.
FontCondensed	The FontCondensed property is used to: Determine if characters in a text are condensed. Condense (or not) the characters in a text.
FontExtended	The FontExtended property is used to: Find out whether the spacing between characters in a text is increased. Increase the spacing between characters in a text.
FontItalic	The FontItalic property is used to: Determine if the text is italicized. Apply or remove italic formatting from the text.
FontLarge	The FontLarge property is used to: Determine if the text is expanded. Expand the text.
FontName	The FontName property is used to: Identify the font used in a control. Change the font used in a control.
FontSize	The FontSize property is used to: Identify the size of the font used in a control. Change the size of the font used in a control.
FontStrikeOut	The FontStrikeOut property is used to: Determine if the text displayed is struck through. Apply strikethrough formatting (or not) the text displayed in a control.
FontUnderlined	The FontUnderlined property is used to: Determine if the text is underlined. Underline (or not) a text.
FullName	The FullName property is used to find out the full name: of a control. of a window. of a menu option. of a table column.
Grayed	The Grayed property is used to: Determine if a control (or a group of controls) is grayed out. Gray out or ungray a control, a group of controls or a window.
Height	The Height property gets and sets the height: of a control or block in a report. of a control (in a window), window, row of a Table, List Box or ListView control, option of a Radio Button or Check Box control, break header or footer of a Table or Looper control. of a control (in a page), break header or footer in a Table or Looper control. The control can be overlayable or not. of a break cell in a Table or Looper control.
HelpNumber	The HelpNumber property is used to identify and modify the help number associated with a control.
State	The State property gets and sets the state of an element.
StoredValue	The StoredValue property is used to get the value currently stored by: a row in a List Box, ListView or Combo Box control. a "Text token" Edit control. a row of a Table control. an input suggestion in an Edit control (if the suggestion is selected).
ToolTip	The ToolTip property gets and sets the text displayed in a tooltip. This tooltip can be associated with: a control in a window or page, New in SaaS a control in a report. In this case, the tooltip will only be visible in the report viewer. Note: This feature is only available from WINDEV Suite SaaS 2025 Update 3.
TotalNbChildren	The TotalNbChildren property returns the total number of children in a branch: of a Treeview control, of a TreeView Table control.
Value	The Value property is used to: Find out and modify the value of a report control. Find out and modify the value of a control or the title of a window. Find out the identifier of a stream. Find out and modify the value of a control or the title of a page.
WinEditAllowed	The WinEditAllowed property is used to determine and configure the actions allowed on a control when the window switches to "Allow end users to modify the UI" mode.

Properties available in a page (server code)

The following properties can be used with the rows of a TreeView control:


BackgroundColor	The BackgroundColor property is used to set the background color of a control, window, page or block of a report.
Color	The Color property gets or sets the font color of: a Font variable. text displayed in a Static or Calculated control of a report. text displayed in a window control. text displayed in a page control.
FullName	The FullName property is used to find out the full name: of a control. of a window. of a menu option. of a table column.
URL	The URL property is used to: Get the address associated with a control. Change the address associated with a control.
Value	The Value property is used to: Find out and modify the value of a report control. Find out and modify the value of a control or the title of a window. Find out the identifier of a stream. Find out and modify the value of a control or the title of a page.