blazor-call-js.razor

<button class="btn btn-primary" @onclick="ReadBarcodes">Read Barcodes from Files</button>
@code {
    private static String result = "No Barcode Found";
 
    protected override void OnInitialized()
    {
        JSRuntime.InvokeVoidAsync("jsFunctions.init", DotNetObjectReference.Create(this));
    }
     
    public async Task ReadBarcodes()
    {
        await JSRuntime.InvokeVoidAsync(
                "jsFunctions.selectFile");
    }
}