Issue
I suspect this is very simple, but I searched and didn't find and/or didn't understand. I'm working on a Razor Pages app to learn web dev, and I'm trying to put a navbar in the _Layout.cshtml, but while the default declaration of it works fine, if I change it to "navbar-inverse" bootstrap class then it doesn't work any more. I thought if it might be the version of bootstrap, and I then installed the latest (bootstrap 5) as a Nuget package. What I would need now is how to reference the new version 5 of bootstrap in my _Layout.cshtml file (<link rel="..." and <script src="...") and I want to reference from the file system (or whatever it is that works). Also I would like you to confirm if actually the problem in my code is because of the bootstrap old version. The navbar with "navbar-inverse" class doesn't work and before with a default class it did.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>@ViewData["Title"] - WebAppPersonas</title>
<link rel="stylesheet" href="~/css/bootstrap.css" />
<link rel="stylesheet" href="~/css/site.css" />
<script src="~/lib/jquery-ui-1.12.1.custom/external/jquery/jquery.js"></script>
<script src="~/js/bootstrap.js"> </script>
@RenderSection("Head", false)
</head>
<body>
<script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
<script src="~/js/site.js" asp-append-version="true"></script>
<header>
<nav class="navbar navbar-inverse">
<div class="container">
<a class="navbar-brand" asp-area="" asp-page="/Index">WebAppPersonas</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".navbar-collapse" aria-controls="navbarSupportedContent"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse d-sm-inline-flex flex-sm-row-reverse">
<ul class="navbar-nav flex-grow-1">
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-page="/Index">Home</a>
</li>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-page="/Privacy">Privacy</a>
</li>
</ul>
</div>
</div>
</nav>
</header>
<div class="container">
<main role="main" class="pb-3">
@RenderBody()
</main>
</div>
<footer class="border-top footer text-muted">
<div class="container">
© 2021 - WebAppPersonas - <a asp-area="" asp-page="/Privacy">Privacy</a>
</div>
</footer>
<script src="~/lib/jquery/dist/jquery.min.js"></script>
<script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
<script src="~/js/site.js" asp-append-version="true"></script>
@await RenderSectionAsync("Scripts", required: false)
</body>
</html>Thank you in advance Pablo
Solution
When using bootstrap from nuget, you can use the Solution Explorer to see, where the nuget files are being located. Click on Dependencies > Packages > bootstrap > Content Files.
Under there you should see links like in the image below: any/any/wwwroot/css/bootstrap.css. Since asp.net core stores and looks for static files in the wwwroot folder as the root folder per default, your css link would look like this:
<link rel="stylesheet" href="~/css/bootstrap.css" />
Analog for the js files:
<script src="~/js/bootstrap.bundle.min.js"></script>
Answered By - Marco
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