(MVVM) - How To Bind to DataContext from ContextMenu within DataTemplate [C#] IP Address Validation in WPF [ERROR] Specified Visual is already a child of another Visual or the root of a CompositionTarget [MSBuild] error MC3000: XML is "undeclared" prefix - how to fix? [MVVM pattern, W...
is removed are when an item is removed from the underlying collection and when virtualization is enabled on theItemsControl. In these cases, theDataContextproperty of the item container will be set to the sentinel object that is returned by theBindingOperations.DisconnectedSourcestatic property. You ...
So SolidColorBrush in this example has no parent, so it didn't inherit property values from anyone. At first this may seem academic -- who cares if SolidColorBrush inherits? Actually, there's a couple reasons it matters, the DataContext property and the Loaded event. DataContext is an ...
The FrameworkElement.DataContextChanged event has been added. You can use this event to detect when the data context for an element has changed. The UpdateSourceTrigger.PropertyChanged enumeration value has been added. This indicates to update the binding source whenever the binding target value change...
The FrameworkElement.DataContextChanged event has been added. You can use this event to detect when the data context for an element has changed. The UpdateSourceTrigger.PropertyChanged enumeration value has been added. This indicates to update the binding source whenever the binding target value change...
TheFrameworkElement.DataContextChangedevent has been added. You can use this event to detect when the data context for an element has changed. TheUpdateSourceTrigger.PropertyChangedenumeration value has been added. This indicates to update the binding source whenever the binding target value changes. Th...
TheFrameworkElement.DataContextChangedevent has been added. You can use this event to detect when the data context for an element has changed. TheUpdateSourceTrigger.PropertyChangedenumeration value has been added. This indicates to update the binding source whenever the binding target value changes. Th...
The new API surface is as follows: Copy public class Control {+ [BindableAttribute(true)]+ public virtual object DataContext { get; set; }+ [BrowsableAttribute(true)]+ public event EventHandler DataContextChanged;+ protected virtual void OnDataContextChanged(EventArgs e);+ protected virtual void ...
As the title of this article suggests, using the PlacementTarget won’t help you when you need to get to an “outer” DataContext in a nested situation. (i.e. Grid, ListBox, ListItem) This diagram below illustrates a typical WPF pattern. The “enclosing” UserControl has a DataContext of...
labelDataContext.Text = formatted; return labelDataContext; } [/csharp] Changes to the VisibleRangeChanged handling model In order to allow tracking VisibleRange changes in some advanced scenarios (e.g. updating a Slider which controls chart zoom level), the VisibleRangeChanged event is fired for...