Lazy Load XAML content from External File and Vice Versa

XAML is the most flexible language built ever. More I see XAML, more I know about it. Today while tweaking around with XAML code, I found XAML could be loaded dynamically from any XML string. That means if you have a xaml in a xml file you can probably load the part of the XAML into your ContentControl or to any control element you want and the UI will appear instantly.

Once you compile a XAML it produces BAML. BAML is in binary format for the XML, so if you can pass a BAML into the UI separately somehow during runtime,you would be seeing the content instantly in the Window. In this post I am going to discuss how easily you could load a Dynamic content of XAML file into a normal WPF ContentControl just like what we do for normal htmls.

What is XamlReader and XamlWriter?

If you look into the implementation of these classes you could wonder how flexible these are. They are highly capable of parsing the whole content of the file. It uses a XAMLDictionary which holds all the XAML elements that a XAML can see. The Reader parses the Xml content very cautiously to ensure it makes the XAML file to contain no reference of outside. Thus the class is used to Refactor the XAML from outside and hence allows you to put the content anywhere such that everything will be applied on that instantly.

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