System.Web.UI.WebControls Namespace   TreeView Class

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.NET Framework version 2.0

Sets or retrieves the style properties for a parent node in a TreeView control.

Script	TreeView.ParentNodeStyle.Property [ = enumValue ]

A TreeNodeStyle object that defines the style properties for a parent node in a TreeView.

Use the ParentNodeStyle property to specify the appearance of a parent node in a TreeView control. Common style attributes that can be set include forecolor, backcolor, font, and content alignment within the tree. Providing different node styles enhances the appearance of the TreeView control.

The ParentNodeStyle subproperties can be set declaratively using either of the following methods:

• Include an attribute in the opening tag of the TreeView control in the form ParentNodeStyle-Property

  <asp:treeview ... 
     parentnodestyle-property=value
     ... >
  
  </asp:treeview>

• Include a <ParentNodeStyle> element between the opening and closing tags of the TreeView control

  <asp:treeview ... >
  
     <parentnodestyle
        ... property definitions here />
  
  </asp:treeview>

The subproperties can also be set programmatically in the form ParentNodeStyle.Property.

Style properties are applied in the following order of precedence:

• NodeStyle
• RootNodeStyle, ParentNodeStyle, or LeafNodeStyle, depending on the node type. If the LevelStyles collection is defined, it is applied at this time, overriding the other node style properties.
• SelectedNodeStyle
• HoverNodeStyle

If you need to generate table of contents-style navigation menus where nodes at a certain level should have the same appearance, regardless of whether they have child nodes, you might consider using the LevelStyles property instead of setting the individual style properties.

For a list of style properties that can be set, see the TreeNodeStyle class.

TreeView Members

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