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I want to use Blazor Component in my ASP.NET MVC App. So, I follow article like this one : https://fizzylogic.nl/2019/08/18/integrating-blazor-in-an-existing-asp-net-core-application/

The behavior is quite strange, because I have no errors in my console, and my breakpoint put in OnInitializedAsync is fired, but I never reach my breakpoint in OnAfterRenderAsync...

I put breakpoints in BuildRenderTree & OnParametersSet, all of them are fired. My parameters are correctly set, and the ShouldRender method returns true. I also add a StateHasChanged() in OnInitializedAsync, but my component is still not rendering.

For testing, I replace all my component code by and still nothing render...

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2 Answers 2

Reset to default
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Use the new way of rendering components in mvc razor pages:

<component type="typeof(Namespace.Pages.Component)" render-mode="ServerPrerendered" param-AnyParameter="parameterValue" />
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5 Comments

Thanks for this answer. In fact, I also already try this, without success...
Can you share your other setup? I have done the same process in my project and it works fine.
I've done the same myself, what I don't understand is why all my component's method are called except AfterRenderAsync ...
That's odd, have you tried this in a blank default new project and if possible share that project on github?
Figure it out that I was loading blazor script in head section instead of bottom of body. After moving it to bottom of body, my component render !
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I discover that loading blazor server client javascript file MUST be done in the bottom of the file. I was loading it in the of my HTML, which makes my component not rendering.

Moving it to my Scripts section of my razor view make it works !

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Thank you so much, was starting to pull my hair out a bit haha

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