The Load method implements the following algorithm for determining the character encoding or character set of the XML document: If there is a 2-byte Unicode byte-order mark, it assumes the encoding is UTF
Instead I want to spread the word about a little known gem called QuickConverter. QuickConverter is awesome because it allows you to write C code directly in your XAML; this means no need for creating an explicit converter class. The traditional approach This post shows the code for how you would traditionally accomplish this.
Man, that is a lot of work to flip a bit! Just for reference, this is what step 4 might look like in the xaml: How freaking cool is that! This also allows us to skip steps 1, 2, and 3 of the traditional approach, allowing you to get more done.
The QuickConverter documentation page shows many more examples, such as a Visibility converter: And there is even limited support for using lambdas, which allows LINQ to be used: Once you have it installed in your project, there are 2 things you need to do: Register assemblies for the types that you plan to use in your quick converters For example, if you want to use the Visibility converter shown above, you need to register the System.
Windows assembly, since that is where the System. Visibility enum being referenced lives. You can register the System. Windows assembly with QuickConverter using this line: Visibility ; In order to avoid a XamlParseException at run-time, this line needs to be executed before the quick converter executes.
That way I know they have been registered before any quick converter expressions are evaluated. AddNamespace typeof object ; QuickConverter.
Add the QuickConverter namespace to your Xaml files As with all controls in xaml, before you can use a you a control you must create a reference to the namespace that the control is in.
Here are a few scenarios where you would likely want to stick with traditional converters: You need some very complex logic that is simply easier to write using a traditional converter.
For example, we have some converters that access our application cache and lock resources and do a lot of other logic, where it would be tough impossible?
Also, by writing it using the traditional approach you get things like VS intellisense and compile-time error checking.
If the converter logic that you are writing is very complex, you may want it enclosed in a converter class to make it more easily reusable; this allows for a single reusable object and avoids copy-pasting complex logic all over the place.
Perhaps the first time you write it you might do it as a QuickConverter, but if you find yourself copy-pasting that complex logic a lot, move it into a traditional converter. Summary So QuickConverter is super useful and can help speed up development time by allowing most, if not all, of your converters to be written inline.
This means fewer files and classes cluttering up your projects. If you need to do complex logic or debug your converters though, then you may want to use traditional converters for those few cases. So, writing C inline in your xaml; how cool is that! One of the hardest things to believe is that Johannes Moersch came up with this idea and implemented it while on a co-op work term in my office!
I hope you find QuickConverter as helpful as I have, and if you have any suggestions for improvements, be sure to leave Johannes a comment on the CodePlex page.How to create a simple Browser Enabled WPF application.
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