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Component rendering/positioning problem in the new blazor web application template #49387

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@bub-bl

Description

@bub-bl

Is there an existing issue for this?

  • I have searched the existing issues

Describe the bug

The problem is related to component rendering in blazor preview 6 with the new template project (blazor web application).

A blink effect is visible when the component is rendered and the component has a positioning problem.
The second Counter component is moved at the top of <h1>Hello, world!</h1>

Expected Behavior

Both components should be rendered below the text "Welcome to your new app."

Steps To Reproduce

<button type="button" @onclick="IncrementCount">Current count: @_currentCount</button>

@code {

    int _currentCount = 0;

    [Parameter]
    public int IncrementAmount { get; set; } = 1;

    void IncrementCount()
    {
        _currentCount += IncrementAmount;
    }

}
  • In the Index.razor, insert the following code:
@page "/"

<PageTitle>Index</PageTitle>

<h1>Hello, world!</h1>

Welcome to your new app.

<Counter IncrementAmount="2" @rendermode="@(RenderMode.Server)" />
<Counter IncrementAmount="2" @rendermode="@(RenderMode.Server)" />
  • Build and run the app
  • Browse to /

Exceptions (if any)

No response

.NET Version

8.0.100-preview.6.23330.14

Anything else?

Additional infos

SDK .NET

Version: 8.0.100-preview.6.23330.14
Commit: ba97796b8f

Environnement d'exécution :
OS Name: Windows
OS Version: 10.0.23493
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\8.0.100-preview.6.23330.14\

.NET workloads installed:
Il n'y a aucune charge de travail installée à afficher.

Host:
Version: 8.0.0-preview.6.23329.7
Architecture: x64
Commit: 5340be2ccc

.NET SDKs installed:
7.0.304 [C:\Program Files\dotnet\sdk]
7.0.400-preview.23330.10 [C:\Program Files\dotnet\sdk]
8.0.100-preview.6.23330.14 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 6.0.19 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.7 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.0-preview.5.23302.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.0-preview.6.23329.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.19 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.0-preview.5.23280.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.0-preview.6.23329.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 6.0.19 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.7 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.8 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.0-preview.5.23302.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.0-preview.6.23329.4 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

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area-blazorIncludes: Blazor, Razor ComponentsbugThis issue describes a behavior which is not expected - a bug.feature-full-stack-web-uiFull stack web UI with Blazor

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