Wpf oneway binding not updating code for dating bone china
Update the control's XAML: As the one way binding only reads from the source, you'll see that the text box is initialised on loading.
Its contents also change if you edit the text in the first text box.
Windows Presentation Foundation (WPF) data binding provides a simple and consistent way for applications to present and interact with data.
Elements can be bound to data from a variety of data sources in the form of common language runtime (CLR) objects and XML.
Normally my View Models inherit from my View Model Base base class, which provides a Raise Property Changed method and, when in debug mode, uses reflection to check if the property name is valid.
Now I’d recently refactored the code so this particular View Model wasn’t using the base class, so my first instinct was that I’d simply mistyped the property name magic string in the event – but that was all fine.
Because of the depth of this topic I have decided to split this tutorial up into a series of blog posts, each of which explore a different aspect of the binding framework.
I don't usually write tutorial blog posts and series, preferring instead to develop new controls or novel techniques.
After a few minutes of head scratching I noticed that although my class was firing the Property Changed event correctly, I hadn’t added INotify Property Changed to my class declaration when I removed the base class!
My name is Steven Robbins, and this is my allegedly technical blog.
These days I generally work in C# and SQL, but in the past I’ve developed in everything from Assembly Language (68000 and x86) through to VB. I’ve also done my time in the support/engineering side of IT, so I’m pretty much a geek through and through 🙂 I’m a firm believer that reading and “best practices” are no substitute for using your brain!
The ninety-fourth part of the Windows Presentation Foundation Fundamentals tutorial adds to the description of data binding.
This article describes two common options for data binding that allow control of the direction of data flow and the timing of updates.