Author Archives: Jesse Liberty

About Jesse Liberty

Jesse Liberty is the Principal Mobile Developer with IFS Core. He has three decades of experience writing and delivering software projects. He is the author of 2 dozen books and a couple dozen Pluralsight & LinkedIn Learning courses, and has been a Senior Technical Evangelist for Microsoft, a Distinguished Software Engineer for AT&T, a VP for Information Services for Citibank and a Software Architect for PBS. He is a Xamarin Certified Mobile Developer and a Xamarin MVP and a Microsoft MVP.

Display A Dialog From The ViewModel

In a previous blog post I discussed the problem of being in your ViewModel yet having to display a dialog to the user. You can’t interact with the page from the ViewModel, but you don’t want the logic of your … Continue reading

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CodeMash Xamarin.Forms Workshop

The code for the 1/2 day workshop at CodeMash is available here.  Thanks.

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Happy Holidays to C Programmers

Not sure where I got this, but still like it:

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Xamarin.Forms Fundamentals: MVVM

In my previous post we started with a blank Xamarin.Forms app and added manual data-binding.   That is, when a button was pressed, we assigned the value in an entry control to the text property of a label.  Yuck. Today we’ll … Continue reading

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Xamarin Fundamentals

In my previous (and first) posting on Learning Xamarin, I demonstrated how to create a pretty cool program out of the box.  Let’s back up now, and start with a blank app, and see what we can build from there. … Continue reading

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I’m Back! With Xamarin.Forms Programming

It has been a few months since I’ve posted, and I hope you missed me as much as I missed you.  To re-launch this blog, I’ve decided to provide a series on Xamarin.Forms programming.   If you prefer to learn by … Continue reading

Posted in Essentials, MVVM, Programming, Xamarin, XAML | 2 Comments

TypeScript for C# Programmers – Slide deck

Here is a link to the slide deck for my presentation at NYC Code Camp. Thanks!

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MVVM Ping Pong

Here’s a problem I come across more often than I would have expected.  I want my buttons to use Commands in the View Model, but in response to the command, I have to interact with the user in a way … Continue reading

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Yet Another Podcast #182: OzCode

OzCode is an extraordinary debugging tool for Visual Studio (Windows).  I’m joined by Omer Raviv, Creator and CTO of OzCode and Alon Fliess, Co-founder of CodeValue and Chief Architect at OzCode. Alon is a Microsoft Regional Director and an Azure MVP. OzCode Website OzCode on VS … Continue reading

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Xamarin Quick Hit: Dimming a button to indicate it is disabled

I often have to dim a button to indicate that it is disabled, and I want to do that via data binding.

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Visual Studio for Mac – my newest Pluralsight Course

  At the core of effective application development is a thorough knowledge of Visual Studio Mac. In this course, Visual Studio for Mac, you will learn how to work with VS Mac to produce enterprise-quality software.  First, you will explore the … Continue reading

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Learn to Program (From Scratch!)

John Papa and I have just released our new Play by Play on Learning To Program.   If you know of someone who has wanted to learn to code but didn’t know where to start, this might be a great option.

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