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There are countless example snippets of how to do this – some are rather extensive, but most are some variation on a standard boilerplate template.There is no shortage of information out there on how to speed up the performance of WPF applications, but too often the focus is on the weird stuff instead of the simpler issues.I’m not going to talk about things like writing to to optimize drawing—it’s a topic covered to death elsewhere.
Typically we would have one View per View Model, but that’s not a requirement at all (more like a generalized observation), and in fact there are some situations where we might want to have multiple Views for the same View Model (or break a complex View Model into multiple parts while still connecting to a single View).
The View Models are supposed to capable of standing alone, and we use data bindings and command bindings to connect the two.
Blend-style behaviors also have their own set of lifetime problems.
Then there are some problems (like this and this) where WPF leaks for you too.
During the implementation of the sample, I came across an annoying issue: You cannot nest static or dynamic resources within a custom markup extension due to a framework bug.
I’d like to share a really awesome bit of code that I’ve been using in my XAML applications for a while now…
The general idea is that your code which handles application logic, business rules, etc.
gets placed into View Model classes, and all visual widgets/controls get placed into XAML views.
For this example, we’d like to register the bound control with some kind of handler class.
We could also do this with an attached property, but this is more fun 😉 First, I created a custom extension called property just like with the original regular binding expression.
He codes in both C# and Java, and applies the lessons learned from each to the other.Tags: Adult Dating, affair dating, sex dating