Changes

* "Properties.XItems" is not a real collection. The most frequently used collections are Properties.AllItems, Properties.VisibleItems, Properties.EditableItems, and Properties.ImportantItems (properties which fall into the [[UBIK_WinX_Client_Basics#High_priority_properties|Priority threshold]]). The number of properties delivered to a content object in each collection (for example; all, 80%, 40% and 10%, respectively) is also a consideration when estimating the performance impact of binding to these collections; simply put, use the smallest collection possible where the desired property is consistently located.

This collection was created to overcome the performance impact arising from using Properties.XItems, by individually loading the PropertyViewModel for the named property. However, note that the benefit only lasts while the binding is used sparingly; rendering performance will be roughly the same as loading the Properties collection after 3-5 uses on a single item template.

{{Hint|The Values[ ] collection delivers the property's value as a string. The equivalent for the other bindings (above shown as '...') is <code>{Binding Collection[PROPERTY_NAME].'''DisplayValue'''}</code>, however, the capability of these viewmodels goes far beyond the DisplayValue. Use [[Developer_Mode]] to learn more.}}

==== * Troubleshooting null property values ====