February 2017
Intermediate to advanced
568 pages
14h 19m
English
Content preview from Mastering Windows Presentation FoundationBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Customizing the error template
In addition to the essential Errors and HasError properties, the Validation class also declares an ErrorTemplate Attached Property of type ControlTemplate. The default template assigned to this property is responsible for defining the red rectangle that surrounds UI fields that have validation errors associated with them.
However, this property enables us to change this template and so, we are able to define how validation errors are highlighted to the application users. As this property is an Attached Property, this effectively means that we could apply a different template to be displayed for each control in the UI. However, this cannot be recommended, because it could make the application look less consistent. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.