Gets or sets a brush that describes the background of a control. Gets a value that indicates whether at least one touch is pressed over this element or any child elements in its visual tree. Gets a value that indicates whether at least one touch is pressed over this element. Gets a value that indicates whether at least one touch is captured to this element or to any child elements in its visual tree. Gets a value that indicates whether at least one touch is captured to this element. Gets or sets the number of alternating item containers in the ItemsControl, which enables alternating containers to have a unique appearance. Gets or sets a value indicating whether this element can be used as the target of a drag-and-drop operation. Gets the rendered height of this element. Identified by the Unselected routed event. Identifies the IsSelectionActive dependency property. Identifies the IsSelected dependency property. Identifies the IsExpanded dependency property. Initializes a new instance of the TreeViewItem class. You can find a list of visual properties in the Changing the Visual Structure of a Control section in the Customizing the Appearance of an Existing Control by Creating a ControlTemplate article. Setting a visual property only has an effect if that property is both present in the control's default template and is set by using a TemplateBinding. The default style is determined by which desktop theme is used when the application is running. If a property is set by a default style, the property might change from its default value when the control appears in the application. To see the parts and states that are specific to the TreeViewItem, see TreeView Styles and Templates.ĭependency properties for this control might be set by the control's default style. For more information about creating a ControlTemplate, see Customizing the Appearance of an Existing Control by Creating a ControlTemplate. You can modify the default ControlTemplate to give the control a unique appearance. To apply the same property settings to multiple TreeViewItem controls, use the Style property. To expand or collapse a TreeViewItem, use the IsExpanded property.įor more information about the TreeView control, see the TreeView Overview. The following illustration shows a hierarchy of TreeViewItem controls inside a TreeView. TreeViewItem controls can be embedded inside other TreeViewItem controls to create a hierarchy of nodes inside a TreeView control. For more information, see the HeaderedItemsControl class. TreeViewItem is a HeaderedItemsControl, which means its header and collection of objects can be of any type (such as string, image, or panel). The following example shows how to create a hierarchy of TreeViewItem controls in a TreeView control. IHierarchicalVirtualizationAndScrollInfo Examples Implements IHierarchicalVirtualizationAndScrollInfo Inheritance Inherits HeaderedItemsControl Public Class TreeViewItem Interface IHierarchicalVirtualizationAndScrollInfo Public Class TreeViewItem Interface VirtualizingStackPanel.IProvideStackingSize Public class TreeViewItem :, .IHierarchicalVirtualizationAndScrollInfo public ref class TreeViewItem : System::Windows::Controls::HeaderedItemsControl public ref class TreeViewItem : System::Windows::Controls::HeaderedItemsControl, System::Windows::Controls::Primitives::IHierarchicalVirtualizationAndScrollInfo WPF Radio Buttons.Implements a selectable item in a TreeView control.Jasema - The XAMLPadX plugin for building Path Geometry.Net Client Profile astoria Blend C# 3.0 clickonce css3 friends html5 HTML5 for XAML guys javascript lambda LINQ MEF MEFedMVVM mvvm silverlight silverlight 2 beta 1 silverlight for wpf guys silverlight tips and tricks threading tips and tricks tools Uncategorized WPF WPF Custom Controls wpf disciples wpf tools XBAP Search Top Posts Please contact me if you need any help □ The most important part of this ControlTemplate is the Trigger on the attached property local: we are making the RootNodes for the treeview look different from all other nodes… Once we have the property IsRootNode set we can restyle the TreeView as we want by using a Control Template. all other nodes are generated by the TreeViewItems themselves (Remember that the TreeViewItems are ItemsControl as well :)). Because the Treeview only generate root nodes. You would be wondering, But wouldn’t this make all TreeViewItems root nodes?!!? And the answer is, NO. So the most important part is where we set the Attached property IsRootNode to true (Please also note that by default the Attached property is set to false).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |