视图组件:
public class WidgetViewComponent : ViewComponent
{
private readonly IWidgetService _WidgetService;
private WidgetViewComponent(IWidgetService widgetService)
{
_WidgetService = widgetService;
}
public async Task<IViewComponentResult> InvokeAsync(int widgetId)
{
var widget = await _WidgetService.GetWidgetById(widgetId);
return View(widget);
}
}
在视图~/Views/Employees/Details.cshtml中
@await Component.InvokeAsync("Widget", new { WidgetId = Model.WidgetId } )
视图组件位于 ~Views/Shared/Components/Widget/Default.cshtml
我收到的错误如下:
InvalidOperationException: 找不到适合类型 'MyApp.ViewComponents.WidgetViewComponent' 的构造函数。确保该类型是具体的,并且为公共构造函数的所有参数注册了服务。
internal
或protected
会导致相同的错误。 - LCIII