ValidatableType complex modal validation is not working with Blazor Web Assembly (Standalone) 10 RC1

[Chandradev819]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

Hi Team,

As per as Microsoft documentation, I had created two sample projects, one in Blazor Web App and Blazor WebAssembly Standalone application.

[ValidatableType] validation attribute for complex modal validation is working as expected in Blazor Web App 10.0 RC1 but not working in Blazor Web Assembly 10.0 RC1.

is it known issue?

Expected Behavior

In Blazor Web Assembly also complex Modal validation should work.

Steps To Reproduce

No response

Exceptions (if any)

No response

.NET Version

10.0.100-rc.1.25451.107

Anything else?

No response

[oroztocil]

@Chandradev819 Hi, thank you for contacting us.

We are investigating an issue in the Microsoft.NET.Sdk.BlazorWebAssembly SDK. In the meantime, could you please provide your project that reproduces the issue?

[Chandradev819]

Live URL:

https://proud-pond-0d050e910.6.azurestaticapps.net/validationdemo

GitHub Source Code:

https://github.com/Chandradev819/WASM10_Test.git

[oroztocil]

@Chandradev819 Thank you for the reproduction.

The issue is caused by the fact that the source generator which creates the necessary validation metadata was not packaged in the Microsoft.Extensions.Validation NuGet package. This is not a problem for projects based on the Web SDK (such as Blazor Server/Web App projects) because that SDK itself comes with the source generator. However, for projects based on the Blazor WebAssembly SDK we need to add the source generator into the Validation NuGet package. We plan to fix this in the RC2 release.