For those familiar with JavaScript Promises, jQuery’s Deferred.fail() handling can act unexpectedly. Standard Promises implementations allow the first catch handler to deal with the error and then return to normal execution flow (see JavaScript Promises: There and back again). jQuery on the other hand appears to execute all fail handlers, in the order they were defined with no chance to recover normal flow.
Read ArticleHere’s some useful templates for managing Scrum projects using Excel. Why use Excel? For simplicity. Sometimes great software and tools are necessary, sometimes they just over complicate the process.
Read ArticleBackbone.Spark provides computed property support for Backbone.js, the goal of the extension is to make computed properties behave in the same way as a normal attribute so your other code doesn’t need to know the difference.
The latest version of Backbone.Spark and examples can be found at GitHub
Read ArticleIt bugs me when developers check in files to TFS that haven’t been modified. It’s easy to do, you open a file, edit it, change your mind and ctrl-z it. Now you have a checked out file with no changes and when you do your next check in you’ll probably check that file in too, unless you’re really on the ball and compare each file manually first. TFS makes no distinction between checked in files that were modified and those that weren’t, which makes the job of reviewing code that much harder.
Read ArticleSo you’ve been working on your code from Team Foundation Server (TFS), made changes then realised you should really have started a branch for it.
I couldn’t find a good tutorial anywhere for how to do this so here’s the best workflow I found.
Read ArticleThis post is based on Entity Framework 4.1 Code First Fluent API.
I have an Entity Framework model being used in the business layer called Patient, it has a collection of dependent entities called Responses, when a response needs to be deleted I simply remove it from the collection and expect that it’ll get deleted from the database. It doesn’t.
Need to perform validation on a model’s property based on some other state of the model? Here’s a way to achieve it using the IValidatableObject interface and data annotations.
Read ArticleThere’s plenty of examples on how to find duplicates using LINQ’s GroupBy method, but usually they use a projection to return a new object, like this:
_filteredSubmissions = (from s in _filteredSubmissions
group s by s.Email
into g
where g.Count() > 1
select new { Emails = g.Key, DuplicateCount = g.Count() }Unindenting in Expression Blend drove me mad, I just couldn’t get it to work. Today I figured out why.
The code I am copying from Visual Studio uses spaces for indentation, in Blend I was using tabs, this means when I paste code from VS, Blend doesn’t see any tabs to ‘unindent’.
Simple solution - make sure your Visual Studio indentation settings match your Blend settings.
Read ArticleI wasted a few development hours discovering this strange behaviour when binding to the IsChecked property of a RadioButton in WPF when using MVVM. You can read about the issue on the MSDN forum, but from my experience if you have a two way binding on the is IsChecked property of a RadioButton which is part of a group, then after you set the bound property in code a couple of times, the RadioButton loses it’s binding all together.
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