<header>

    <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">

        <div class="container">

            <a class="navbar-brand" asp-area="" asp-controller="Home" asp-action="Index">Keep_Peek_Example</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-controller="Home" asp-action="Index">Home</a>

                    </li>

                    <li class="nav-item">

                        <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Keep">Keep</a>

                    </li>

                    <li class="nav-item">

                        <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Peek">Peek</a>

                    </li>

                </ul>

            </div>

        </div>

    </nav>

</header>

<div class="container">

    <partial name="_CookieConsentPartial" />

    <main role="main" class="pb-3">

        @RenderBody()

    </main>

</div>

<footer class="border-top footer text-muted">

    <div class="container">

        &copy; 2020 - Keep_Peek_Example - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>

    </div>

</footer>

<header>

    <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">

        <div class="container">

            <a class="navbar-brand" asp-area="" asp-controller="Home" asp-action="Index">Keep_Peek_Example</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-controller="Home" asp-action="Index">Home</a>

                    </li>

                    <li class="nav-item">

                        <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Keep">Keep</a>

                    </li>

                    <li class="nav-item">

                        <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Peek">Peek</a>

                    </li>

                </ul>

            </div>

        </div>

    </nav>

</header>

<div class="container">

    <partial name="_CookieConsentPartial" />

    <main role="main" class="pb-3">

        @RenderBody()

    </main>

</div>

<footer class="border-top footer text-muted">

    <div class="container">

        &copy; 2020 - Keep_Peek_Example - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>

    </div>

</footer>

@{

    ViewData["Title"] = "Keep";

}

<h1>@TempData["Temp"]</h1>

@{

    TempData.Keep("Temp");

 }

@{

    ViewData["Title"] = "Peek";

    string  value= Convert.ToString(TempData.Peek("Temp"));

}

<h1>

    @value

</h1>

public class HomeController : Controller

{

    public IActionResult Index()

    {

        return View();

    }

    public IActionResult Keep()

    {

        TempData["Temp"] = "AspSolution.net";

        return View();

    }

    public IActionResult Peek()

    {

        return View();

    }

}