Async programming in C# is something that's been covered in detail by a number of people (google Brandon Minnick or Filip Ekberg), but it's still something I see misused on

A common scenario in apps is to want users to sign in before they get access to the features and functions of the app. In order to sign in, users

A short while back, fellow Xamarin MVP Michael Ridland (@rid00z) published a great post here: http://www.michaelridland.com/xamarin/taskcompletionsource-xamarin-beautiful-async/ on using TaskCompletionSource to 'mimic' async functionality and allow

Wow - it's been a long time since my last post. I've been very busy with something that I hope to chat about before too long... In the meantime, here

If you're trying to do this as per my previous post here http://blog.alectucker.com/post/2014/07/26/using-messageingcenter-in-xamarin-forms-for-viewmodel-to-viewmodel-navigation.aspx and are getting this error: *System.InvalidOperationException: Collection