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Index

@page "/"

<h1>Hello, world!</h1>

<MatSelect TValue="Guid" 
           @bind-Value="@SomeViewModelValue.Customer"
           Disabled="@(!IsAdmin || HasProducts)">
    <MatOption Value="new Guid()" Disabled="true">Please select</MatOption>
    @foreach(var customer in AvailableCustomers)
    {
        <MatOption Value="customer.Id">@customer.Name</MatOption>
    }
</MatSelect>
<p>
    HasProducts: @HasProducts
</p>
<p>
    IsAdmin: @IsAdmin
</p>
<p>
    Disabled: @(!IsAdmin || HasProducts)
</p>
<MatButton OnClick="ChangeProducts">Change Products</MatButton>

@code {
    SomeViewModel SomeViewModelValue = new()
    {
        Customer = new Guid("a7a5a780-1f97-4683-9cf6-1ad956c3da29")
    };

    public bool IsAdmin {get;set;} = true;
    public bool HasProducts {get;set;} = true;

    List<Customer> AvailableCustomers = new List<Customer>()
    {
        new Customer() {
            Id = new Guid("a7a5a780-1f97-4683-9cf6-1ad956c3da29"),
            Name = "Test 1"
        },
        new Customer() {
            Id = new Guid("54649c26-c4dc-41fb-b8b7-46711c50cc04"),
            Name = "Test 2"
        },
        new Customer() {
            Id = new Guid("f8292032-a376-44c2-bcdf-e97e5e6f80b8"),
            Name = "Test 3"
        },
        new Customer() {
            Id = new Guid("5b034fd8-0541-4e70-94fb-83d5212e7921"),
            Name = "Test 4"
        },
        new Customer() {
            Id = new Guid("738ffb94-89d5-4351-a705-c71a2e087836"),
            Name = "Test 5"
        }
    };

    public void ChangeProducts()
    {
        HasProducts = HasProducts ? false : true;
    }

    class SomeViewModel
    {
        public Guid Customer {get;set;}
    }

    class Customer
    {
        public Guid Id {get;set;}
        public string Name {get;set;}
    }
}

namespace BlazorFiddleProject
{
    using Microsoft.Extensions.DependencyInjection;


    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
        }

        // Warning: IComponentsApplicationBuilder - not the original .NET 6.0 interface. This was done to make old saves work. 
        public void Configure(IComponentsApplicationBuilder app)
        {
            app.AddComponent<App>("app");
        }
    }
}

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <meta name="viewport" content="width=device-width">
    <title>BlazorFiddleProject</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">

    <link href="_content/MatBlazor/dist/matBlazor.css" rel="stylesheet" />
    <script src="_content/MatBlazor/dist/matBlazor.js"></script>    

    <style>
        app { }
    </style>

    <script type="text/javascript">
    </script>
</head>
<body>
<app>Loading...</app>

<script src="_framework/blazor.webassembly.js"></script>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</body>
</html>

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