Added a sample for Blazor list box

App.razor

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+
+<Router AppAssembly="@typeof(Program).Assembly">
+    <Found Context="routeData">
+        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
+    </Found>
+    <NotFound>
+        <LayoutView Layout="@typeof(MainLayout)">
+            <p>Sorry, there's nothing at this address.</p>
+        </LayoutView>
+    </NotFound>
+</Router>

BlazorExample.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.Blazor" Version="18.1.0.36-beta" />
+  </ItemGroup>
+
+</Project>

Data/WeatherForecast.cs

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+using System;
+
+namespace BlazorExample.Data
+{
+    public class WeatherForecast
+    {
+        public DateTime Date { get; set; }
+
+        public int TemperatureC { get; set; }
+
+        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+
+        public string Summary { get; set; }
+    }
+}

Data/WeatherForecastService.cs

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+using System;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BlazorExample.Data
+{
+    public class WeatherForecastService
+    {
+        private static readonly string[] Summaries = new[]
+        {
+            "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
+        };
+
+        public Task<WeatherForecast[]> GetForecastAsync(DateTime startDate)
+        {
+            var rng = new Random();
+            return Task.FromResult(Enumerable.Range(1, 5).Select(index => new WeatherForecast
+            {
+                Date = startDate.AddDays(index),
+                TemperatureC = rng.Next(-20, 55),
+                Summary = Summaries[rng.Next(Summaries.Length)]
+            }).ToArray());
+        }
+    }
+}

Pages/Counter.razor

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+@page "/counter"
+
+<h1>Counter</h1>
+
+<p>Current count: @currentCount</p>
+
+<button class="btn btn-primary" @onclick="IncrementCount">Click me</button>
+
+@code {
+    private int currentCount = 0;
+
+    private void IncrementCount()
+    {
+        currentCount++;
+    }
+}

Pages/Error.razor

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+@page "/error"
+
+
+<h1 class="text-danger">Error.</h1>
+<h2 class="text-danger">An error occurred while processing your request.</h2>
+
+<h3>Development Mode</h3>
+<p>
+    Swapping to <strong>Development</strong> environment will display more detailed information about the error that occurred.
+</p>
+<p>
+    <strong>The Development environment shouldn't be enabled for deployed applications.</strong>
+    It can result in displaying sensitive information from exceptions to end users.
+    For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
+    and restarting the app.
+</p>

Pages/FetchData.razor

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+@page "/fetchdata"
+
+@using BlazorExample.Data
+@inject WeatherForecastService ForecastService
+
+<h1>Weather forecast</h1>
+
+<p>This component demonstrates fetching data from a service.</p>
+
+@if (forecasts == null)
+{
+    <p><em>Loading...</em></p>
+}
+else
+{
+    <table class="table">
+        <thead>
+            <tr>
+                <th>Date</th>
+                <th>Temp. (C)</th>
+                <th>Temp. (F)</th>
+                <th>Summary</th>
+            </tr>
+        </thead>
+        <tbody>
+            @foreach (var forecast in forecasts)
+            {
+                <tr>
+                    <td>@forecast.Date.ToShortDateString()</td>
+                    <td>@forecast.TemperatureC</td>
+                    <td>@forecast.TemperatureF</td>
+                    <td>@forecast.Summary</td>
+                </tr>
+            }
+        </tbody>
+    </table>
+}
+
+@code {
+    private WeatherForecast[] forecasts;
+
+    protected override async Task OnInitializedAsync()
+    {
+        forecasts = await ForecastService.GetForecastAsync(DateTime.Now);
+    }
+}

Pages/Index.razor

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+@page "/"
+
+<div class="control_wrapper">
+    <SfListBox DataSource="@Games" TValue="string[]" TItem="GamesData">
+        <ListBoxFieldSettings Value="ID" Text="Name">
+        </ListBoxFieldSettings>
+    </SfListBox>
+
+    @*Remote Data Source code snippet*@
+    @*<SfListBox TValue="string[]" TItem="EmployeeData">
+            <ListBoxFieldSettings Value="EmployeeID" Text="FirstName">
+            </ListBoxFieldSettings>
+            <SfDataManager Url="https://ej2services.syncfusion.com/production/web-services/api/Employees"
+                           Adaptor="Syncfusion.Blazor.Adaptors.WebApiAdaptor"
+                           CrossDomain=true>
+            </SfDataManager>
+        </SfListBox>*@
+</div>
+
+
+
+@code {
+
+    //Remote Data Source code snippet
+
+    //public class EmployeeData
+    //{
+    //    public int EmployeeID { get; set; }
+    //    public string FirstName { get; set; }
+    //    public string Designation { get; set; }
+    //    public string Country { get; set; }
+    //}
+
+    public class GamesData
+    {
+        public string ID { get; set; }
+        public string Name { get; set; }
+    }
+
+    List<GamesData>
+    Games = new List<GamesData>
+        {
+        new GamesData() { ID= "Game1", Name= "Badminton" },
+        new GamesData() { ID= "Game2", Name= "Basketball" },
+        new GamesData() { ID= "Game3", Name= "Cricket" },
+        new GamesData() { ID= "Game4", Name= "Football" },
+        new GamesData() { ID= "Game5", Name= "Golf" },
+        new GamesData() { ID= "Game6", Name= "Hockey" },
+        new GamesData() { ID= "Game7", Name= "Tennis"},
+        };
+        }
+
+        <style>
+            .control_wrapper {
+                width: 250px;
+                margin-left: 35%;
+                margin-right: 35%;
+                margin-top: 12%;
+                margin-bottom: 15%;
+            }
+        </style>

Pages/_Host.cshtml

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+@page "/"
+@namespace BlazorExample.Pages
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
+@{
+    Layout = null;
+}
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>BlazorExample</title>
+    <base href="~/" />
+    <link rel="stylesheet" href="css/bootstrap/bootstrap.min.css" />
+    <link href="css/site.css" rel="stylesheet" />
+    <link href="_content/Syncfusion.Blazor/styles/material.css" rel="stylesheet" />
+</head>
+<body>
+    <app>
+        <component type="typeof(App)" render-mode="ServerPrerendered" />
+    </app>
+
+    <div id="blazor-error-ui">
+        <environment include="Staging,Production">
+            An error has occurred. This application may no longer respond until reloaded.
+        </environment>
+        <environment include="Development">
+            An unhandled exception has occurred. See browser dev tools for details.
+        </environment>
+        <a href="" class="reload">Reload</a>
+        <a class="dismiss">🗙</a>
+    </div>
+
+    <script src="_framework/blazor.server.js"></script>
+</body>
+</html>

Program.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace BlazorExample
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
+    }
+}

Properties/launchSettings.json

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+{
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:63664",
+      "sslPort": 44323
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "BlazorExample": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:5001;http://localhost:5000",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

README.md

@@ -1 +1,14 @@
-# blazor-list-box-getting-started-example
+# Add a Blazor ListBox Component to a Blazor Server App
+
+A quick overview on how to create and configure the Syncfusion Blazor ListBox in a Blazor Server app using Visual Studio Code. You will learn how to add a simple Blazor ListBox to a Blazor Server app. You will also learn how to populate it with list data and remote data sources to the ListBox. 
+
+Example: https://blazor.syncfusion.com/demos/listbox/default-functionalities
+
+Documentation: https://blazor.syncfusion.com/documentation/listbox/getting-started 
+
+## Project pre-requisites
+Make sure that you have the compatible versions of Visual Studio 2019 and .NET Core SDK 3.1.2 in your machine before starting to work on this project.
+
+## How to run this application?
+To run this application, you need to first clone the `blazor-list-box-getting-started-example` repository and then open it in Visual Studio 2019. Now, simply build and run your project to view the output.
+

Shared/MainLayout.razor

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+@inherits LayoutComponentBase
+
+<div class="sidebar">
+    <NavMenu />
+</div>
+
+<div class="main">
+    <div class="top-row px-4">
+        <a href="https://docs.microsoft.com/aspnet/" target="_blank">About</a>
+    </div>
+
+    <div class="content px-4">
+        @Body
+    </div>
+</div>

Shared/NavMenu.razor

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+<div class="top-row pl-4 navbar navbar-dark">
+    <a class="navbar-brand" href="">BlazorExample</a>
+    <button class="navbar-toggler" @onclick="ToggleNavMenu">
+        <span class="navbar-toggler-icon"></span>
+    </button>
+</div>
+
+<div class="@NavMenuCssClass" @onclick="ToggleNavMenu">
+    <ul class="nav flex-column">
+        <li class="nav-item px-3">
+            <NavLink class="nav-link" href="" Match="NavLinkMatch.All">
+                <span class="oi oi-home" aria-hidden="true"></span> Home
+            </NavLink>
+        </li>
+        <li class="nav-item px-3">
+            <NavLink class="nav-link" href="counter">
+                <span class="oi oi-plus" aria-hidden="true"></span> Counter
+            </NavLink>
+        </li>
+        <li class="nav-item px-3">
+            <NavLink class="nav-link" href="fetchdata">
+                <span class="oi oi-list-rich" aria-hidden="true"></span> Fetch data
+            </NavLink>
+        </li>
+    </ul>
+</div>
+
+@code {
+    private bool collapseNavMenu = true;
+
+    private string NavMenuCssClass => collapseNavMenu ? "collapse" : null;
+
+    private void ToggleNavMenu()
+    {
+        collapseNavMenu = !collapseNavMenu;
+    }
+}

Shared/SurveyPrompt.razor

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+<div class="alert alert-secondary mt-4" role="alert">
+    <span class="oi oi-pencil mr-2" aria-hidden="true"></span>
+    <strong>@Title</strong>
+
+    <span class="text-nowrap">
+        Please take our
+        <a target="_blank" class="font-weight-bold" href="https://go.microsoft.com/fwlink/?linkid=2112271">brief survey</a>
+    </span>
+    and tell us what you think.
+</div>
+
+@code {
+    // Demonstrates how a parent component can supply parameters
+    [Parameter]
+    public string Title { get; set; }
+}