TFS undo checkout of unedited files

It 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.

Delete Dependents When Removing an Entity From Entity Framework

This 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.

Using LINQ to list all duplicates

There’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() }

WPF RadioButton Binding to IsChecked Property

I 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.

phreplace Goes Open Source

I’ve decided to release phreplace as open source software in order to continue it’s development, I no longer have the time to give it the attention it requires.

The VB6 source code will be released under the GNU Lesser General Public License (LGPL), in my understanding this means that anyone can use phreplace and even include the library in a greater works (e.g. PSPad), however if they modify the code it must be released under a similar open source library, in order that everyone will benefit from the changes.

The source code is available at Assembla, feel free to send any code changes to me to be included in the project.