asp.net - Ajax 与 ViewComponent

Question

如何在Asp.Net Core中为ViewComponent使用AJAX？即调用方法 @Component.Invoke("ComponentName", SomeData); ViewComponent 将涉及依赖于 SomeData 的各种 View ，而无需重新启动主视图。

更新

我的解决方案是:

$(function () {
      $(Container).load('ControllerName/ControllerAction', {
                ArgumentName: ArgumentValue });
                                                 });

Controller :

public IActionResult ControllerAction(string value)
        {
           return ViewComponent("ViewComponent", value);
        }

以前的版本有没有办法直接使用ViewComponent作为AjaxHelpers？

Answer 1

您的解决方案是正确的。 From the docs:

[ViewComponents are] not reachable directly as an HTTP endpoint, they're invoked from your code (usually in a view). A view component never handles a request.

While view components don't define endpoints like controllers, you can easily implement a controller action that returns the content of a ViewComponentResult.

所以正如你所建议的，a lightweight controller可以充当我们的 ViewComponent 的 AJAX 代理。

public class MyViewComponentController : Controller 
{
    [HttpGet]
    public IActionResult Get(int id) 
    {
        return ViewComponent("MyViewComponent", new { id });
    }
}