ตัวดูเอกสารที่ทำงานภายใน Blazor

// Program.cs — order matters
builder.Services.AddDoconut(options =>
{
    options.LicensePath = "Doconut.Viewer.lic";
});
builder.Services.AddSession();

app.UseSession();          // before UseDoconut()
app.UseDoconutResources(); // before UseDoconut()
app.UseDoconut();

// Viewer.razor — open server-side, hand the token to the widget
@inject Doconut.Viewer Viewer
@inject IJSRuntime JS

<div id="divDocViewer"><div id="div_ctlDoc"></div></div>

@code {
    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (!firstRender) return;

        // Authorize first — the viewer renders whatever you hand it.
        string token = await Viewer.OpenDocumentAsync("wwwroot/files/Sample.pdf");
        await JS.InvokeVoidAsync("doconutHost.mount", token);
    }
}