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How to use Tabs in ASP.NET CORE

I want to show Components in a tabs , so first of all create few components. In this project we have three components, First View Component  public class AllViewComponent : ViewComponent     {         private readonly UserManager<ApplicationUser> _userManager;         public AllViewComponent(UserManager<ApplicationUser> userManager)         {             _userManager = userManager;         }         public async Task<IViewComponentResult> InvokeAsync()         {             List<StudentViewModel> allUsers = new List<StudentViewModel>();             var items = await _userManager.Users.ToListAsync();             foreach (var item in items)             {                 allUsers.Add(new StudentViewModel {Id=item.Id, EnrollmentNo = item.EnrollmentNo, FatherName = item.FatherName, Name = item.Name, Age = item.Age, Birthdate = item.Birthdate, Address = item.Address, Gender = item.Gender, Email = item.Email });             }            

How to use ValidationSummary Control in ASP.NET

Introduction
The ValidationSummary control collects all the validation control error message (known as summary) and displays it collectively on the screen . The display of the summary , which can be a list , a bulleted list , or a single paragraph , can be set by using the DisplayMode property . You can also specify whether the summary should be displayed in the web page or in a message box by setting the ShowSummary and ShowMessageBox properties respectively . The validationSummary control exists within the System.Web.UI.WebControls namespace.
Public Properties of  ValidationSummary Class

DisplayMode : Obtains or set the display mode of the ValidationSummary Control.

EnableClientScript : Obtains or set a value indicating whether the ValidationSummary  control updates itself using the client-side script.

ForeColor : Obtains or sets the foreground color of the control.

HeaderText : Obtains or sets the header text displayed at the top of the summary.

ShowMessageBox : Obtains or sets a value showing whether the validation summary is displayed in a message box.

ShowSummary : Obtains or sets a value showing whether the validation summary is displayed in line.

ValidationGroup : Obtains or set the group of controls for which the ValidationSummary object displays validation message.

Example :

<p>
<h2>Login for security</h2></p>
<asp:ValidationSummary ID="ValidationSummary1" runat="server" BackColor="#CCCC00" BorderColor="Black" BorderStyle="Solid" BorderWidth="4px" />
<p>
Enter member username :&nbsp;
<asp:TextBox ID="usrtxt" runat="server" Width="182px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="usrtxt" ErrorMessage="Enter Username" ForeColor="Maroon">*</asp:RequiredFieldValidator>
</p>
<p>
Enter&nbsp; member password : <asp:TextBox ID="pwd" runat="server" TextMode="Password" Width="182px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="usrtxt" ErrorMessage="Enter password" ForeColor="Maroon">*</asp:RequiredFieldValidator>
</p>
<p>
<asp:Button ID="Button1" runat="server" Text="Member Login" OnClick="Button1_Click" />
</p>
<p>
&nbsp;</p>


Output
validationSummary




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