Namespace:System.Windows Assembly:PresentationFramework (in PresentationFramework.dll) XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
A single XAML element as the immediate child of the FrameworkTemplate subclass. Templates must have a single root node. In order to generate a useful template, the element chosen as VisualTreeRootNode is expected to support a content model of its own, often a model that supports multiple child elements.
One or more elements that complete the intended template. If the element chosen as VisualTreeRootNode only supports a single child, then there can only be one element declared as VisualTreeNodeContents. It is also possible (though uncommon) to provide text content if the chosen VisualTreeRootNode supports a text content property.