Wpf textbox validating

And then, beyond deciding whether or not the Error symbol would blink (I always the blinking exclamation point), there wasn’t a lot of pizzazz we could add. Getting Started Before I go any further, you can find most of the basics in these articles: I recommend reading these articles.

wpf textbox validating-36

So if I type in a value that is out of range, the target property is still invalidly set with the bad value.

This means that I have to do extra work to correct the error.

Second, this interface uses a custom indexer, which frankly just feels like magic.

It’s a personal preference, and a fear of the unknown, but I just don’t like it.

Consuming Custom Validation Rules Now that we have an class, let’s add it to our XAML so we can put it into action.

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