CRM demo: Profile page throws null exception

Radzen Studio Blazor Server
1

Made my way to the last section of the demo which configures the Profile page.

I can't figure out what is missing that would cause this null exception. I've attached the VS debugger and it fails at the userManager.GetRolesAsync(user) call in the SecurityService.cs file.

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The only debug information I could find was:

dotnet: warn: Microsoft.AspNetCore.Components.Server.Circuits.RemoteRenderer[100]
      Unhandled exception rendering component: Object reference not set to an instance of an object.
      System.NullReferenceException: Object reference not set to an instance of an object.
         at RadzenCrm2.Pages.Profile.<BuildRenderTree>b__0_5(RenderTreeBuilder __builder5)
         at Microsoft.AspNetCore.Components.CascadingValue`1.Render(RenderTreeBuilder builder)
2

Hi @cottomatte,

Check if the form have ${user != null} expression for Visible property.

3

Hi @enchev,

That worked thank you!

I'm confused why this worked. I'm hoping you can help me understand.

I understand the syntax. I get that it's not visible unless the ${user} property is set. My confusion comes from the VS debugger showing the user was not null. It only threw the exception when it reached the call to getRolesAsync().

I apologize if I'm missing something obvious.

4

The exception was raised actually from the .razor code and Visual Studio debugger is confused since it cannot break in razor part of the page.

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