Tree Control S Directive
/documentation/pages/Ref/Desktop_Api/UI Functions/XDialog/Controls/Tree/Tree Control S Directive.xml
The formatting string %S=BLR% is used to specify that a tree control should be displayed with the familiar boxes and lines.
A Simple Tree Control
/documentation/pages/Guides/Desktop/Xdialog/Controls/Tree Control/A Simple Tree Control.xml
The formatting string %S=BLR% is used to specify that tree should be displayed with the familiar boxes and lines. The "B" directive indicates that open/close boxes should be displayed; the "L" directive indicates that lines should be drawn on the tree control, and the "R" directive indicates that the open/close boxes should be drawn at the root level.
Tree Control Syntax
/documentation/pages/Ref/Desktop_Api/UI Functions/XDialog/Controls/Tree/Tree Control Syntax.xml
The formatting string %S=BLR% is used to specify that a tree control should be displayed with the familiar boxes and lines. To set the default choice for the tree control, set the value of Node before running UI_DLG_BOX(). In the following example, setting node to "b.1.A" would cause the tree to open so that "b.1.A" was visible and highlighted.
Adding Navigator Icons to a Tree Control
/documentation/pages/Guides/Desktop/Xdialog/Controls/Tree Control/Adding Navigator Icons to a Tree Control.xml
The formatting string %S=BLR% is used to specify that tree should be displayed with the familiar boxes and lines. The "B" directive indicates that open/close boxes should be displayed; the "L" directive indicates that lines should be drawn on the tree control, and the "R" directive indicates that the open/close boxes should be drawn at the root level.
Tree Control I Directive
/documentation/pages/Ref/Desktop_Api/UI Functions/XDialog/Controls/Tree/Tree Control I Directive.xml
Specifies image used in a tree control.
Tree Control Events
/documentation/pages/Guides/Desktop/Xdialog/Controls/Tree Control/Tree Control Events.xml
In some situations, where the tree control will display a lot of data, and it would take a long time to compute all of the data to be shown in the tree control, it would be advantageous to delay populating the branches in the tree until the user actually opens that node.
Tree Controls
/documentation/pages/Guides/Desktop/Xdialog/Controls/Tree Control/Tree Controls.xml
A tree control is a variation of a list box. The tree control is very familiar to all Windows uses as many of the standard Windows user interfaces (such as the Explorer) utilize a tree control. Like a list box, a tree control displays an array of value. In the case of the tree control however, the array of values must be specially formatted to represent the hierarchy of the tree.
Creating a Tree Control Based on a Set
/documentation/pages/Guides/Desktop/Design/Data/DBF/Creating a Tree Control Based on a Set.xml
This example shows how to create a tree control that shows the contents of a set. The set has four levels, as Described in this picture.
Displaying Values from a Set in a Tree Control
/documentation/pages/Guides/Desktop/Xdialog/Controls/Tree Control/Displaying Values from a Set in a Tree Control.xml
This sample demonstrates several different programming techniques.
Tree Control Functions
/documentation/pages/Ref/Api/Functions/Utility/Tree Control Functions/index.xml
Alpha Anywhere provides the following tree control functions.