December 2014
Intermediate to advanced
512 pages
17h 4m
English
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Sharing the Source with DataContext
It’s common for many elements in the same user interface to bind to the same source object (different source properties, but the same source object). For this reason, Binding supports an implicit data source rather than explicitly marking every one with a Source, RelativeSource, or ElementName. This implicit data source is also known as a data context.
To designate a source object as a data context, you find a common parent element and set its DataContext property to the source object. (All FrameworkElements have this DataContext property of type Object.) When the system encounters a Binding without an explicit source object, it traverses up the element tree until it finds a non-null DataContext.
Therefore, ...
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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.