Listbox not updating when datasource changes wpf

Posted by / 17-May-2020 22:32

The first step is to make a class deriving from IValue Converter. There are two interface members - one of them to convert to the target type, and one of them to convert back.We don't need to convert back, so we just need to implement Convert To: Now the numbers show up with positional text in them (45 becomes 45th, for example).If we do that, however, the parameter value becomes useless -- binding to the "Is Checked" property only tells us that the checkbox is checked, not which enum flag it represents.

You can even pass parameters to them, so that you can combine data in the value converter. We also record whether or not the enum is a flags enum (as can be determined by checking for the "Flags" attribute on the type) to vary the logic later.Get Dynamic Member Names() and Try Get Member() are fairly straightforward.Here's what the XAML for that looks like: This code looks more complicated than it is. First note that we need to check explicitly if we're dealing with an enum type.It's not possible to do this with a type constraint.

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