Partial Views and Child Actions are one the most used features of ASP.NET MVC. Partial Views provides us a way to create a reusable component that can be used in multiple Views. There are Actions which can be marked as Child Actions and these cannot be invoked via URL but inside views or partial views. Child Actions are no more available with ASP.NET Core. View Components are new way to implement this feature in ASP.NET Core.
services.AddDNTScheduler(options =>
{
// DNTScheduler needs a ping service to keep it alive. Set it to false if you don't need it.
options.AddPingTask = true;
options.AddScheduledTask<DoFillDataTask>(
runAt: utcNow =>
{
var schedulerTask = _config.GetSection("SchedulerTask");
var now = utcNow.AddHours(4.5);
return now.Hour == 10 && now.Minute == 0 && now.Second == 0;
},
order: 1);
}); 
@import url('open-iconic/font/css/open-iconic-bootstrap.min.css'); dotnet tool update -g Microsoft.Web.LibraryManager.Cli libman init libman install bootstrap --provider unpkg --destination wwwroot/lib/bootstrap libman install open-iconic --provider unpkg --destination wwwroot/lib/open-iconic libman install jquery --provider unpkg --destination wwwroot/lib/jquery libman install toastr --provider unpkg --destination wwwroot/lib/toastr
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta
name="viewport"
content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"
/>
<title>BlazorWasm.Client</title>
<base href="/" />
<link href="lib/toastr/build/toastr.min.css" rel="stylesheet" />
<link
href="lib/open-iconic/font/css/open-iconic-bootstrap.min.css"
rel="stylesheet"
/>
<link href="lib/bootstrap/dist/css/bootstrap.min.css" rel="stylesheet" />
<link href="css/app.css" rel="stylesheet" />
<link href="BlazorWasm.Client.styles.css" rel="stylesheet" />
</head>
<body>
<div id="app">Loading...</div>
<div id="blazor-error-ui">
An unhandled error has occurred.
<a href="" class="reload">Reload</a>
<a class="dismiss">🗙</a>
</div>
<script src="lib/jquery/dist/jquery.min.js"></script>
<script src="lib/toastr/build/toastr.min.js"></script>
<script src="js/common.js"></script>
<script src="_framework/blazor.webassembly.js"></script>
</body>
</html> .valid.modified:not([type="checkbox"]) {
outline: 1px solid #26b050;
}
.invalid {
outline: 1px solid red;
}
.validation-message {
color: red;
}
#blazor-error-ui {
background: lightyellow;
bottom: 0;
box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
display: none;
left: 0;
padding: 0.6rem 1.25rem 0.7rem 1.25rem;
position: fixed;
width: 100%;
z-index: 1000;
}
#blazor-error-ui .dismiss {
cursor: pointer;
position: absolute;
right: 0.75rem;
top: 0.5rem;
}
.spinner {
border: 16px solid silver !important;
border-top: 16px solid #337ab7 !important;
border-radius: 50% !important;
width: 80px !important;
height: 80px !important;
animation: spin 700ms linear infinite !important;
top: 50% !important;
left: 50% !important;
transform: translate(-50%, -50%);
position: absolute !important;
}
@keyframes spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
.room-image {
display: block;
width: 100%;
height: 150px;
background-size: cover !important;
border: 3px solid green;
position: relative;
}
.room-image-title {
position: absolute;
top: 0;
right: 0;
background-color: green;
color: white;
padding: 0px 6px;
display: inline-block;
} window.ShowToastr = (type, message) => {
if (type === "success") {
toastr.success(message, "Operation Successful", { timeOut: 10000 });
}
if (type === "error") {
toastr.error(message, "Operation Failed", { timeOut: 10000 });
}
}; @using BlazorWasm.Client.Utils
@inherits LayoutComponentBase <NavMenu /> <div> @Body </div>
<nav class="navbar navbar-expand-sm navbar-dark bg-dark p-0">
<a class="navbar-brand mx-4" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse"
data-target="#navbarSupportedContent"
aria-controls="navbarSupportedContent"
aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse pr-2" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto"></ul>
<ul class="my-0 navbar-nav">
<li class="nav-item p-0">
<NavLink class="nav-link" href="registration">
<span class="p-2">
Register
</span>
</NavLink>
</li>
<li class="nav-item p-0">
<NavLink class="nav-link" href="login">
<span class="p-2">
Login
</span>
</NavLink>
</li>
</ul>
</div>
</nav> 
@page "/"
<form>
<div class="row p-0 mx-0 mt-4">
<div class="col-12 col-md-5 offset-md-1 pl-2 pr-2 pr-md-0">
<div class="form-group">
<label>Check In Date</label>
<input type="text" class="form-control" />
</div>
</div>
<div class="col-8 col-md-3 pl-2 pr-2">
<div class="form-group">
<label>No. of nights</label>
<select class="form-control">
@for (var i = 1; i <= 10; i++)
{
<option value="@i">@i</option>
}
</select>
</div>
</div>
<div class="col-4 col-md-2 p-0 pr-2">
<div class="form-group">
<label> </label>
<input type="submit" value="Go" class="btn btn-success btn-block" />
</div>
</div>
</div>
</form> using System;
namespace BlazorWasm.Client.Models.ViewModels
{
public class HomeVM
{
public DateTime StartDate { get; set; } = DateTime.Now;
public DateTime EndDate { get; set; }
public int NoOfNights { get; set; } = 1;
}
} using BlazorWasm.Client.Models.ViewModels
@code{
HomeVM HomeModel = new HomeVM();
} <EditForm Model="HomeModel"> // ... </EditForm>
<InputDate min="@DateTime.Now.ToString("yyyy-MM-dd")"
@bind-Value="HomeModel.StartDate"
type="text"
class="form-control" /> <select @bind="HomeModel.NoOfNights">
dotnet add package Blazored.LocalStorage
namespace BlazorWasm.Client
{
public class Program
{
public static async Task Main(string[] args)
{
var builder = WebAssemblyHostBuilder.CreateDefault(args);
// ...
builder.Services.AddBlazoredLocalStorage();
// ...
}
}
} @using Blazored.LocalStorage
@page "/" @inject ILocalStorageService LocalStorage @inject IJSRuntime JsRuntime <EditForm Model="HomeModel" OnValidSubmit="SaveInitialData">
@code{
HomeVM HomeModel = new HomeVM();
private async Task SaveInitialData()
{
try
{
HomeModel.EndDate = HomeModel.StartDate.AddDays(HomeModel.NoOfNights);
await LocalStorage.SetItemAsync("InitialRoomBookingInfo", HomeModel);
}
catch (Exception e)
{
await JsRuntime.ToastrError(e.Message);
}
}
} 
namespace BlazorServer.Common
{
public static class ConstantKeys
{
public const string LocalInitialBooking = "InitialRoomBookingInfo";
}
} <Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
<ItemGroup>
<ProjectReference Include="..\..\BlazorServer\BlazorServer.Common\BlazorServer.Common.csproj" />
</ItemGroup>
</Project> @using BlazorServer.Common
await LocalStorage.SetItemAsync(ConstantKeys.LocalInitialBooking, HomeModel);
@page "/hotel/rooms"
<h3>HotelRooms</h3>
@code {
} @page "/"
@inject ILocalStorageService LocalStorage
@inject IJSRuntime JsRuntime
@inject NavigationManager NavigationManager
@code{
HomeVM HomeModel = new HomeVM();
private async Task SaveInitialData()
{
try
{
HomeModel.EndDate = HomeModel.StartDate.AddDays(HomeModel.NoOfNights);
await LocalStorage.SetItemAsync(ConstantKeys.LocalInitialBooking, HomeModel);
NavigationManager.NavigateTo("hotel/rooms");
}
catch (Exception e)
{
await JsRuntime.ToastrError(e.Message);
}
}
} What are Closures in JavaScript?
for name in ["Vahid", "Hamid", "Saeid"]
alert "Hi #{name}" var i, len, name, ref;
ref = ["Vahid", "Hamid", "Saeid"];
for (i = 0, len = ref.length; i < len; i++) {
name = ref[i];
alert("Hi " + name);
} for name, i in ["Vahid", "Hamid", "Saeid"]
alert "#{i} - Hi #{name}" alert name for name in ["Vahid", "Hamid", "Saeid"]
names = ["Vahid", "Hamid", "Saeid"] alert name for name in names when name[0] is "V"
var i, len, name, names;
names = ["Vahid", "Hamid", "Saeid"];
for (i = 0, len = names.length; i < len; i++) {
name = names[i];
if (name[0] === "V") {
alert(name);
}
} names = "Vahid": "Mohammad Taheri", "Ali": "Ahmadi"
alert("#{first} #{last}") for first, last of names var first, last, names;
names = {
"Vahid": "Mohammad Taheri",
"Ali": "Ahmadi"
};
for (first in names) {
last = names[first];
alert(first + " " + last);
} num = 6 minstrel = while num -= 1 num + " Hi"
var minstrel, num;
num = 6;
minstrel = (function() {
var _results;
_results = [];
while (num -= 1) {
_results.push(num + " Hi");
}
return _results;
})(); range = [1..5]
var range; range = [1, 2, 3, 4, 5];
firstTwo = ["one", "two", "three"][0..1]
var firstTwo; firstTwo = ["one", "two", "three"].slice(0, 2);
numbers = [0..9] numbers[3..5] = [-3, -4, -5]
my = "my string"[0..2]
words = ["Vahid", "Hamid", "Saeid", "Ali"] alert "Stop" if "Hamid" in words
@name = "Vahid"
this.name = "Vahid";
User::first = -> @records[0]
User.prototype.first = function() {
return this.records[0];
}; alert "OK" if name?
if (typeof name !== "undefined" && name !== null) {
alert("OK");
} name = myName ? "-"
var name; name = typeof myName !== "undefined" && myName !== null ? myName : "-";
user.getAddress()?.getStreetName()
var ref;
if ((ref = user.getAddress()) != null) {
ref.getStreetName();
} user.getAddress().getStreetName?()
var base;
if (typeof (base = user.getAddress()).getStreetName === "function") {
base.getStreetName();
} We finished week 2 of the 9-week boot camp. This week was AngularJS week. We covered building the front-end of a Single Page App with the AngularJS framework. In particular, we covered topics such as client-side routing, making Ajax calls using the $http service and the $route factory, building custom AngularJS services, working with Google Maps, using Angular UI Bootstrap, and uploading files to services such as FilePicker.io.
private static void Query10()
{
using (var context = new StoreDbContext())
{
var customers = context.Customers;
foreach (var customer in customers)
{
Console.WriteLine("Customer Name: {0}, Customer Family: {1}", customer.Name, customer.Family);
foreach (var order in customer.Orders)
{
Console.WriteLine("\t Order Date: {0}", order.Date);
}
}
}
}private static void Query11()
{
using (var context = new StoreDbContext())
{
var customer = context.Customers.First();
Console.WriteLine("Customer Name: {0}, Customer Family: {1}", customer.Name, customer.Family);
foreach (var order in customer.Orders)
{
Console.WriteLine("\t Order Date: {0}", order.Date);
}
}
}context.Configuration.LazyLoadingEnabled = false;
private static void Query12()
{
using (var context = new StoreDbContext())
{
var customers = context.Customers;
foreach (var customer in customers)
{
Console.WriteLine("Customer Name: {0}, Customer Family: {1}", customer.Name, customer.Family);
foreach (var order in customer.Orders)
{
Console.WriteLine("\t Order Date: {0}", order.Date);
}
}
}
}private static void Query13()
{
using (var context = new StoreDbContext())
{
var customers = context.Customers.Include(c => c.Orders);
//var customers = context.Customers.Include("Orders");
foreach (var customer in customers)
{
Console.WriteLine("Customer Name: {0}, Customer Family: {1}", customer.Name, customer.Family);
foreach (var order in customer.Orders)
{
Console.WriteLine("\t Order Date: {0}", order.Date);
}
}
}context.OrderDetails.Include(o => o.Order.Customer)
context.Orders.Include(o => o.OrderDetail.Select(od => od.Product))
context.Orders.Include(o => o.Customer).Include(o => o.OrderDetail)
private static void Query14()
{
using (var context = new StoreDbContext())
{
var customer = context.Customers.First(c => c.Family == "Jamshidi");
context.Entry(customer).Collection(c => c.Orders).Load();
foreach (var order in customer.Orders)
{
Console.WriteLine(order.Date);
}
}
}private static void Query15()
{
using (var context = new StoreDbContext())
{
var order = context.Orders.First();
context.Entry(order).Reference(o => o.Customer).Load();
Console.WriteLine(order.Customer.FullName);
}
}if (context.Entry(order).Reference(o => o.Customer).IsLoaded)
context.Entry(order).Reference(o => o.Customer).Load();private static void Query16()
{
using (var context = new StoreDbContext())
{
var customer = context.Customers.First(c => c.Family == "Jamshidi");
IQueryable<Order> query = context.Entry(customer).Collection(c => c.Orders).Query();
var order = query.First();
}
}The view 'Index' or its master was not found or no view engine supports the searched locations. The following locations were searched: ~/Areas/Biography/Views/My/Index.cshtml ~/Areas/Biography/Views/Shared/Index.cshtml ~/Views/My/Index.cshtml ~/Views/Shared/Index.cshtml ~/Areas/Biography/Views/My/Index.vbhtml ~/Areas/Biography/Views/Shared/Index.vbhtml ~/Views/My/Index.vbhtml ~/Views/Shared/Index.vbhtml
Come learn the top 7 reasons to use Visual Studio 2017 if you are a C++ developer. Whether you are using the product and are looking to upgrade, or you never used it before but you are considering it now, join us to discover how Visual Studio 2017 raises the bar in terms of C++ productivity. From C++ standards conformance to coding productivity, cross-platform development for Windows, Linux, Android, and iOS and CMake support, these are only a few of the topics we discuss in this demo-packed session.
