.NET MAUI iOS Bug – Release Mode Bindings Not Working
This content has 2 years. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.Software bugs can sometimes manifest in specific environments or platforms, leading to unexpected behavior. In this blog post, we will discuss a bug in .NET MAUI specifically affecting iOS platforms. The bug causes bindings between Views and ViewModels to fail in Release mode, resulting in empty Views without the expected data. We’ll explore the symptoms of this bug and present a workaround that involves utilizing the XamlCompilation attribute with the Skip option. Symptoms The bug we are addressing affects the binding functionality in .NET MAUI apps running on iOS platforms in Release mode. When encountering this issue, Views fail to bind with their associated ViewModels, resulting in empty Views that appear as if no BindingContext is present. What is XamlCompilation? XamlCompilation is an attribute provided by Xamarin.Forms that allows developers to specify how XAML files should be compiled. It offers three options: None, XamlC, and Skip. Providing workaround To mitigate this bug, we can utilize the XamlCompilation attribute with the Skip option on the affected Views. This attribute is used to control the compilation behavior of XAML files in .NET MAUI applications. Identify the Affected View First, identify the View(s) in your .NET MAUI app that are experiencing the binding issue specifically on iOS platforms in Release mode. Add XamlCompilation Attribute Add the XamlCompilation attribute to the affected View’s code-behind…
The easiest and best MVVM toolkit also for .NET MAUI.
This content has 3 years. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.Guys, this is unbelievable. Microsoft Community toolkit has added a tool that means you never have to worry about which MVVM framework you’re voting for. None can be as good as this one. It can be used not only for .NET MAUI, but also for other technologies (e.g. WPF). But before I sing your praises, let’s look at what this package has to offer us: Introducing CommunityToolkit.Mvvm First of all, you don’t need to implement INotifyPropertyChanged in ViewModels. And by that I mean not even its parent classes. Since this component is a code generator, it’s enough to make your classes partial, and the INotifyPropertyChanged implementation is done by it, instead of you. This means that your class will be supplemented with the best implementation so that you can easily use common methods like SetProperty in the setter branch of your properties. Okay, okay, but almost any MVVM framework could do this, and you didn’t even need to use a code generator, just simply derive from a parent class. I’ll do you one better: what if you didn’t have to write the setter and getter branches of the properties at all? What if the toolkit made them itself? If you could implement a property declaration from two lines of code?Well, that’s what makes this toolkit good: It does all that…
Xamarin.Forms: Lazy loaded Command snippet for Visual Studio
This content has 4 years. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.Use xamcomm tab tab to generate commands in ViewModels with this snippet Save the snippet file as {name}.snippet in Visual Studio’s folder: C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC#\Snippets\1033\Visual C#
Hi, I am András,
I am a seasoned software engineer from Budapest, Hungary with a strong focus on mobile app development using .NET MAUI and Xamarin.Forms. My expertise also extends to website building for my happy customers and other complex system designing. I am passionate about developing well-organized, maintainable software solutions.
