The attributeName property represents the name of the property within the collection of items to be displayed in the part.

The backgroundColor property is the name of the RGB color for the background of the part.

The borderWidth property is the width of the border, specified in pixels, that surrounds the part on all four sides. A width of zero means that a border does not show.

On some platforms, the border width is limited to 1 pixel and any nonzero value is set to 1.

The defaultGraphicsDescriptor property specifies the descriptor for a default icon or bitmap that displays when an item in the tree view is not selected. Items that are added to the tree view can override the instance method abtCwTreeNode to supply customized characteristics for the node that is added to the tree view. If this method is not overridden, the defaultGraphicsDescriptor is used by the tree view to determine the icon/bitmap that is displayed when the node is unselected.

The defaultSelectedGraphicsDescriptor property specifies the descriptor for a default icon or bitmap that displays when an item in the tree view is selected. Items that are added to the tree view can override the instance method abtCwTreeNode to supply a customized instance of AbtCwTreeNode which can be used to set the #selectedGraphicsDescriptor for the item. If abtCwTreeNode method is not overridden, the defaultSelectedGraphicsDescriptor is used by the tree view to determine the icon/bitmap that is displayed when the node is selected.

For more information on the dragDropSpec attribute, refer to Using the dragDropSpec attribute

The enabled property specifies whether or not the part is available for selection. If true, the part's contents are available for selection.

The fontName property is the name of the font to use for the text displayed in the part.

The foregroundColor property is the name of the RGB color for the foreground of the part.

The framingSpec property represents the values specified for the edge specifications of the part. The edge specifications determine the width, height, and position of the part.

The helpFile property is the name of the help file associated with the part.

The helpKeysId property is the ID of the keys help associated with the part. The ID can be a string or an integer value.

The ID must exist in the help file associated with the part.

The helpTitle property is the title of the help window associated with the part.

The helpTopicId property is the ID of the help topic associated with the part. The ID can be a string or an integer value.

The ID must exist in the help file associated with the part.

The indentation property specifies the amount each node should be indented.

The partName property specifies the name you want to use to describe the part. For nonvisual parts, this text appears under the icon for the part on the free-form surface.

The name of the part can consist of alphanumeric characters, and must be different from those of all other parts on the layout surface.

If you do not specify a part name, VA Smalltalk generates a unique name based on the class name of the part.

The showImages property specifies whether the part displays images.

The showLines property specifies whether lines should appear between the nodes.

The showPlusMinus property specifies whether the part displays plus/minus icons. Labels are always displayed.

The showRootLines property specifies whether lines should appear between the root nodes of the Tree View.

The tabGroup property specifies whether or not the part is included as a tab stop so users can use the Tab and Backtab keys to access the part.

The traversalOn property specifies whether users can access the part using the cursor movement keys. If the part is specified as a tab stop by using the tabGroup property, users also can use the Tab and Backtab keys to access the part.

The visibleItemCount property specifies the number of list items that can fit in the visible work space. The part uses the value from the visibleItemCount property to determine the height when the top or bottom of the part is not attached.