MergedDictionaries Property

ResourceDictionary.MergedDictionaries Property


Gets a collection of the ResourceDictionary dictionaries that constitute the various resource dictionaries in the merged dictionaries.

Namespace:   System.Windows
Assembly:  PresentationFramework (in PresentationFramework.dll)

public Collection<ResourceDictionary> MergedDictionaries { get; }

Property Value

Type: System.Collections.ObjectModel.Collection<ResourceDictionary>

The collection of merged dictionaries.

Dictionaries are merged by adding a ResourceDictionary to the generic collection referenced by MergedDictionaries. A merged ResourceDictionary does not have resource elements defined within it in markup. Instead, the merged dictionary is a ResourceDictionary with no markup child elements defined (or with no elements added through code), but with a URI specified for Source. The Source designation enables the merged dictionary to come from an external source, such as a separate resource assembly that ships with the application, "loose XAML", or a specific localization or global resources assembly.

Specifying resource elements within a ResourceDictionary that has Source specified is not supported.

Lookup behavior within the MergedDictionaries collection will search the last-added ResourceDictionary first, and the search stops as soon as a requested key is found. Duplicate keys across the collection of merged dictionaries are not illegal. For more information on merged dictionary behavior, see Merged Resource Dictionaries.



One or more ResourceDictionary object elements. A ResourceDictionary used for MergedDictionaries does not have collection content, and specifies a Source attribute that references the complete ResourceDictionary remotely.

The following example specifies two ResourceDictionary elements to be merged into the primary ResourceDictionary.

.NET Framework
Available since 3.0
Available since 3.0
Windows Phone Silverlight
Available since 7.0
Return to top
© 2015 Microsoft