Programmatically add to Window.Resources in WPF

Question

Is there a way to add a ResourceDictionary at the Window level instead of the Application level?

I see many examples for something like this:

Application.Current.Resources.MergedDictionaries.Add(myResourceDictionary);

However, nothing like what I would expect there to be, such as:

Window.Resources.MergedDictionaries.Add(myResourceDictionary);

Thanks in advance,

Reed Copsey · Accepted Answer · 2010-07-17 00:44:59Z

8

You can't do:

Window.Resources

However, you can do:

this.Resources.MergedDictionaries.Add(myResourceDictionary);

Resources is a property of FrameworkElement, and is shared by Application and Window (and most other user interface classes in WPF). However, it is an instance property, not a static property, so you need to work with the resources of a specific instance. When you typed "Window.Resources" you were trying to add to the "window" type, not to a specific Window.

This works in your Application line since Application.Current returns the current instance of an Application, so you're working with the correct, specific instance (not the type).

answered Jul 17, 2010 at 0:44

Reed Copsey

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2 Comments

TheGeekYouNeed Over a year ago

If I do this, are the references to the resources now DynamicResource instead of StaticResource? (I took the styles off the window pages themselves and put them into a Dictionary)

Reed Copsey Over a year ago

@TheGeekYouNeed: Yes, basically. THere's no way for them to be resolvable at compile time, so they have to be treated dynamically...

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