.net core 中的局部视图组件是ViewComponent，可以用于建制重复使用公共功能组件

一、新建一个类DemoViewComponent(必须以ViewComponent结尾)且继承ViewComponent

using Microsoft.AspNetCore.Mvc;using NetCoreApiDemo.Model;using System;using System.Collections.Generic;using System.Linq;using System.Threading;using System.Threading.Tasks;namespace NetCorePortal.Components{ public class DemoViewComponent : ViewComponent { public async Task<IViewComponentResult> InvokeAsync() { List<tbl_page> pageList = new List<tbl_page>(); for (int i = 0; i < 10; i++) { pageList.Add(new tbl_page() { page_no = i.ToString(), page_name = i.ToString() }); } return View(pageList);//此处没有返回ViewName 对应的视图文件是Default.cshtml //return View("D", pageList);//此处返回的ViewName 是“D” 对应的视图文件是D.cshtml } }}

二、在View/Share目录下建立Components目录，并在此目录下建立Demo目录及对应Default.cshtml文件  

@model IEnumerable<NetCoreApiDemo.Model.tbl_page><h1>Demo IViewComponentResult</h1><table> <tr> <th>page_no</th> <th>page_name</th> </tr> @foreach (var item in Model) { <tr> <td>@item.page_no</td> <td>@item.page_name</td> </tr> }</table>