ASP.NET Core 2.1 strange submenu appears in Manage page

问题

This is my Manage page that was generated by the Scaffolded Identity.

Previously this weird Manage your account header with the subheading: Change your account settings and menu did not appear.

The only thing that showed was the form in the image and the Manage Account header located directly above the form but I'm not sure why suddenly this extra header and menu appears. I've tried searching on the page itself but it doesn't show up in the code. Is this a configuration somewhere?

EDIT:

Added structure of Manage

回答1:

You can try to open the file _Layout.cshtml in the folder Manage, maybe there is something like this:

<h2>Manage your account</h2>

<div>
    <h4>Change your account settings</h4>
    <hr />
    <div class="row">
        <div class="col-md-3">
            <partial name="_ManageNav" />
        </div>
        <div class="col-md-9">
            @RenderBody()
        </div>
    </div>
</div>

@section Scripts {
    @RenderSection("Scripts", required: false)
}

---

Based on your update, I think the problem comes from the way you add scaffolded item.

I suggest you to follow these steps to add all scaffolded items, then deleting which one you don't use.

1. Right-click on the solution -> Add -> New Scaffolded Item... -> Identity -> Identity -> Add

2. Check with the option: Override all files.

3. In the layout input, clicking on the ... button to select the default layout:

4. In the Data context class input, clicking on + button to create new context class:

After scaffolding, you will receive all the files:

---

Lastly, you can open the file _Layout.cshtml to check the title, the file content could be:

@{ 
    Layout = "/Areas/Identity/Pages/_Layout.cshtml";
}

<h2>Manage your account</h2>

<div>
    <h4>Change your account settings</h4>
    <hr />
    <div class="row">
        <div class="col-md-3">
            <partial name="_ManageNav" />
        </div>
        <div class="col-md-9">
            @RenderBody()
        </div>
    </div>
</div>

@section Scripts {
    @RenderSection("Scripts", required: false)
}

来源：https://stackoverflow.com/questions/53358389/asp-net-core-2-1-strange-submenu-appears-in-manage-page