Hey, I'm Steven a .NET Developer in Switzerland. I am a Microsoft MVP. Also, this blog is open source on GitHub.

Older Posts

2/15/2022
6 minute read

Just imagine you have your beautiful model in a form. And Blazor is very kind and does validation for you. It is really straight forward because you can annotate your model with some attributes like RequiredAttribute to tell Blazor: "Hey this property has to be set, otherwise the form will not be submitted."

But what if you want to have that easy setup with attributes but also want to say to Blazor: "Hey this property has to be set, if the other property is true.* Well, that does not work out of the box. So let's make it together!

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2/13/2022
- MSBuild
- C#
3 minute read

MSBuild has several extensibility hooks to customize your build and today we discover one which let you centralized repeating aspects of your C# projects. Directory.Build.props

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2/10/2022
3 minute read

With the DebuggerTypeProxy we have the possibility to show more complex states. This can be helpful in certain cases where an object for example has a lot of properties.

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2/5/2022
12 minute read

Blazor is a beautiful framework for building SPA's. One advantage is that those SPA's feel like native applications. We do not feel that stuff is necessarily loading. But for that we have to keep our code performant.

This guide will highlight some of the techniques to keep your Blazor app running smoothly. We will also cover some more advanced use cases.

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1/24/2022
7 minute read

In this article I will shade some lights on some of the most used terms which seems very confusing especially for beginners: heap, stack and boxing and unboxing.

Furthermore we will also encounter internet wisdom like:

Value types get stored on the stack. Reference types on the heap

We discuss why this is wrong and what the hell performance has to do with it?

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1/19/2022
7 minute read

Blazor comes with the option to prerender your webpage on the server. This works for the client-side version as well as the server side version of Blazor.

Let's have a look how does it work and what might be some pitfalls and how can we come around those.

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1/11/2022
6 minute read

Did you know that you can spend 100x times longer depending how you compare your enums?

Of course we are speaking here in terms of nanoseconds but this story is much more then just numbers. We'll also talk about boxing and unboxing. So let's dive right into it.

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1/2/2022
8 minute read

Since .NET5 we have the ability to "virtualize" a component.

But what exactly is that and how do we use it? This blog post will show you a lot of details about the <Virtualize> tag.

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12/16/2021
9 minute read

Since the introduction of C# 2.0 we have the yield keyword with in combination with the IEnumerable<T> type works as a generator function. We can return elements one by one.

But how does that thing work internally? And what does it have to do with async / await?

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12/5/2021
4 minute read

Since .NET Core 2.0 the Type ValueTask. It seems that there is a lot of overlap between Task and ValueTask. So let's have a deeper look into ValueTask. Where should we use it and how should we use it properly? And also: where we should not use is.

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Older Posts

RequiredIf - Extend the validation in Blazor

Directory.Build.props - Centralize your builds

DebuggerTypeProxy - Displaying complex states in the debugger

Blazor Performance Tuning - Good practices and advanced use cases

Heap, Stack, Boxing and Unboxing, Performance ... let's order things!

Prerendering Blazor Apps - How does it work / tips and tricks

Enum.Equals - Performance analysis

Lazy load components with Blazor - Virtualize in Action

Generator-Function in C# - What does yield do?

Task vs ValueTask - The what's, when's and how's