simasaurucevicius
Member
- Joined
- Aug 14, 2021
- Messages
- 18
- Programming Experience
- Beginner
Hello.Did exactly like the tutorial said and still it doesnt work,checked the spelling,still doesnt work.Any suggestions? Thank you very much.If somebody finds the solution,you're doing God's work.
Index.cshtml code:
C#:
@{
ViewData["Title"] = "Home Page";
}
<div class="text-center">
<h1 class="display-4">Welcome</h1>
<p>Learn about <a href="ASP.NET documentation">building Web apps with ASP.NET Core</a>.</p>
</div>
@section Summary {
<div class="bg-info text-white m-2 p-2">
@await Component.InvokeAsync("ProductSummary")
</div>
}_Layout.cshtml code:
C#:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>@ViewData["Title"] - ViewComponentsdemo</title>
<link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />
<link rel="stylesheet" href="~/css/site.css" />
</head>
<body>
<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">ViewComponentsdemo</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 justify-content-between">
<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="Privacy">Privacy</a>
</li>
</ul>
</div>
</div>
</nav>
</header>
<div class="container">
<main role="main" class="pb-3">
@RenderBody()
</main>
</div>
@if (IsSectionDefined("Summary"))
{
@RenderSection("Summary", false)
}
<footer class="border-top footer text-muted">
<div class="container">
© 2021 - ViewComponentsdemo - <a asp-area="" asp-controller="Home" asp-action="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>
@RenderSectionAsync("Scripts", required: false)
</body>
</html>Productsdata code:
C#:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace ViewComponentsdemo.Models
{
public class Productsdata
{
private List<Product> _Products = new List<Product>
{
new Product {
ProductID = 1,
ProductName = "AMD Ryzen 3990",
Quantity=100,
UnitsInStock=50,
Discontinued = false,
Cost=3000,
LaunchDate=new DateTime(2019,10,1)
},
new Product {
ProductID = 2,
ProductName = "AMD Ryzen 3970",
Quantity=100,
UnitsInStock=70,
Discontinued = false,
Cost=2500,
LaunchDate=new DateTime(2019,10,5)
},
new Product {
ProductID = 3,
ProductName = "AMD Ryzen 3960",
Quantity=100,
UnitsInStock=80,
Discontinued = false,
Cost=2000,
LaunchDate=new DateTime(2019,10,15)
},
new Product {
ProductID = 4,
ProductName = "AMD Ryzen 3950",
Quantity=100,
UnitsInStock=40,
Discontinued = false,
Cost=1500,
LaunchDate=new DateTime(2019,10,25)
}
};
public IEnumerable<Product> Products => _Products;
}
}ProductSummary code:
C#:
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using ViewComponentsdemo.Models;
namespace ViewComponentsdemo.Components
{
public class ProductSummary : ViewComponent
{
private Productsdata data;
public ProductSummary(Productsdata pdata)
{
data = pdata;
}
public string Invoke()
{
return $"{data.Products.Count()} Products, "
+ $"{data.Products.Sum(c => c.Cost)} Worth of Stock";
}
}
}Attachments
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