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Note: property, method and event names should be referred to in lowercase in case-sensitive scripting languages.


Shown below in a standalone Form. Click the image to see in a Custom Section in a Lianja Page.


Treeitems are hierarchical nodes in a Tree grid.


This class supports the Common Properties plus the following:

Property Access (R/RW) Value Description
Checkstate RW Boolean Whether the item is checked or not
ChildCount R Numeric Number of child items below this item
Picture RW Character Filename of image displayed
Showchildindicator RW Boolean Whether indicator should be displayed if item has child items
Text RW Character Text displayed in the item
Tooltiptext RW Character Text displayed when mouse hovers over item
Value RW Character Value of the item


This class supports the Common Methods plus the following:

Method Args Description
Additem [icon as Character,] caption as Character Add an item, specifying the item caption and optionally an icon filename
Additems selectstring as Character | items as Array[, icon as Character] Add items based on an SQL SELECT query or from an array, optionally including an icon filename
Addobject existing as Object | newobject as Character, class as Character Add an existing object or a new object, in which case the object's class must also be specified
Clear None Clear the item
Collapse None Collapse the item to hide any child items
Expand None Expand the item to display any child items
Removeobject existing as Object Remove the specified object
Text column as Numeric Text displayed at the specified item column


This class supports the Common Events plus the following:

Event Args Description