A fixed and always expanded CommandBar in UWP

Is it possible to show a CommandBar in UWP that… …is always expanded and fixed so the label of your AppBarButtons are always visible …has no ellipsis button to open or collapse it Yes, it is! I had to achieve… Continue Reading →

Gotcha: opening default app for file in UWP

Doing UWP development, when you’ve been doing WPF/WinForms development for years, can cause some confusion sometimes. A colleague of mine got stuck when trying to launch the default application for a particular file he generated in code:

Now, although… Continue Reading →

Distributing WPF/WinForms applications using AppCenter and msix

Some time ago, Microsoft announced WPF and WinForms support for Visual Studio AppCenter. I almost immediately tried it out in order to share my experiences on my blog. But, unfortunately, I was halted because of a bug I discovered and… Continue Reading →

Simple data validation in Xamarin Forms

In this post I would like to share how I’ve implemented user input data validation in Xamarin Forms. Over the years I’ve tried a few approaches, some with success, others without. This one is an implementation I’ve used in my… Continue Reading →

Image classification with WinML and UWP (update)

Little over a year ago, I blogged about how to do image classification using WinML in UWP. Since then we got some updates of Windows and Visual Studio which result in some changes. Windows May 2019 Update (1809) Over time… Continue Reading →

Get Geo Location in background with Xamarin.Essentials on iOS

Getting the Geo Location by using Xamarin.Essentials doesn’t work when the app is in the background. Let’s see how we can ‘fix’ this (on iOS)! Xamarin.Essentials Xamarin.Essentials is a fantastic library containing many cross-platform APIs for mobile applications. Things like… Continue Reading →

Multi targeting, am I falling in love?

♥Februari is the month of love and friendship. That’s why the Xamarin community is sharing some Xamarin Love every day of this month: Xamarin Month of love and friendship! ♥ A lot has been told the past years about code… Continue Reading →

Fixing AppCenter Android Build Error: /usr/bin/jarsigner failed with return code: 1

Error: /usr/bin/jarsigner failed with return code: 1 This issue bugged me for an entire day. The real sad thing about it is, is that I faced this same issue some months ago… So after I set up my AppCenter Android… Continue Reading →

Using Android Linkify to add inline links to a Xamarin Forms Label

A loooong time ago (at least, this is what it feels like…), I created this custom Xamarin Forms control HyperlinkLabel (Blog post, GitHub repo) that can show one or multiple hyperlinks inline with other text. The links can be defined… Continue Reading →

Image classification with Azure Custom Vision Service and CoreML

In my previous blogpost I created a small PoC to show you how to work with the Azure Custom Vision Service and WinML. In this blogpost we are going to take the same model that I have trained back then,… Continue Reading →

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