2.5. Tables and trees - Table and tree features
Tables and trees (lists) are multiple data source controls, which require specific handling.
Functions
- changeDefaultOrder - Change order
 - changeOrderColumn - Change order column
 - descending - Order direction
 - expandAll - Expand all items in tree
 - expandToItem - Expand tree for selected item
 - itemKey - Get key value for selected item in list
 - line - Get currently selected line
 - orderColumn - Order column
 - rowCount - Number of rows
 - setFilter - Activate instance filter
 

