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public:
event System::Windows::DependencyPropertyChangedEventHandler ^ DataContextChanged;
public event System.Windows.DependencyPropertyChangedEventHandler DataContextChanged;
member this.DataContextChanged : System.Windows.DependencyPropertyChangedEventHandler
Public Custom Event DataContextChanged As DependencyPropertyChangedEventHandler
Event Type
For an explanation of data contexts and data binding, see
Data Binding Overview
.
Important
When the
DataContext
for an element changes, all data-bound properties on this element are potentially affected. This applies to any elements that are child elements of the current element in the logical tree, which inherit the data context, and also the current element itself. All such existing bindings must re-interpret the new
DataContext
and will reevaluate the binding results. The data binding engine is not deterministic about the order of these reevaluations, relative to the raising of the
DataContextChanged
event. The reevaluations can occur before the event, after the event, or in any mixture.
