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FileUploadComponent

@page "/"
@using System.ComponentModel.DataAnnotations;
<h3>FIleUploadTestPage</h3>

<EditForm Model="_myModel" OnSubmit="HandleSubmit">
    <DataAnnotationsValidator/>
    <ValidationSummary />
    <div class="form-group">
        <FileUploadComponent @bind-Value="_myModel.File" AllowedTypes="@(new(){".png"})" Label="File"/>
        <ValidationMessage For="()=>_myModel.File" />
    </div>
    <button type="submit">Submit</button>
</EditForm>
@if(_success is not null)
{
    @if (_success.Value)
    {
        <h3>Success</h3>
    }
    else
    {
        <h3>Failed</h3>
    }
}


@code {
    FileModel _myModel = new();
    bool? _success = null;
    public class FileModel
    {
        public IBrowserFile? File { get; set; }
        public IReadOnlyList<IBrowserFile>? Files { get; set; }
    }
    void HandleSubmit(EditContext context)
    {
        if (context.Validate())
        {
            SuccessAction();
        }
        else
        {
            UnSuccessAction();
        }
    }
    void SuccessAction() =>_success = true;
    void UnSuccessAction() => _success = false;
}


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");
        }
    }
}

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<html>
<head>
    <meta charset="utf-8"/>
    <meta name="viewport" content="width=device-width">
    <title>BlazorFiddleProject</title>
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    <link href="_content/MatBlazor/dist/matBlazor.css" rel="stylesheet" />
    <script src="_content/MatBlazor/dist/matBlazor.js"></script>    

    <style>
        app { }
    </style>

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    </script>
</head>
<body>
<app>Loading...</app>

<script src="_framework/blazor.webassembly.js"></script>
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</body>
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