后台获取视图对应的字符串

1.帮助类

    /// <summary>

    /// 后台获取视图对应的字符串

    /// </summary>

    public class ViewHelper

    {



        /// <summary>

        /// 将View输出为字符串

        /// (注：不会执行对应的action方法)

        /// </summary>

        /// <param name="controller">Controller实例</param>

        /// <param name="viewName">如果view文件在当前Controller目录下，则直接输入文件名(例如：Toolbar)

        /// 否则，从根路径开始指定（例如：~/Views/User/Toolbar.cshtml）

        /// </param>

        /// <param name="masterName">模板页文件名（注：显示指定可修改Layout）</param>

        /// <returns></returns>

        public static string RenderViewToString(Controller controller, string viewName, string masterName)

        {

            IView view = ViewEngines.Engines.FindView(controller.ControllerContext, viewName, masterName).View;



            using (StringWriter sw = new StringWriter())

            {

                ViewContext viewContext = new ViewContext(controller.ControllerContext, view, controller.ViewData, controller.TempData, sw);

                viewContext.View.Render(viewContext, sw);

                return sw.ToString();

            }

        }

        /// <summary>

        /// 将PartialView输出字符串

        /// </summary>

        /// <param name="controller">controller实例</param>

        /// <param name="viewName">如果PartialView文件在当前Controller目录下，则直接输入文件名（例如：Toolbar）；

        /// 否则，从根路径开始指定（例如：~/View/User/Toolbar.cshtml）

        /// </param>

        /// <param name="model">构造页面所需要的实体参数</param>

        /// <returns>字符串</returns>

        public static string ReaderPartialViewToString(Controller controller, string viewName, object model)

        {

            IView view = ViewEngines.Engines.FindPartialView(controller.ControllerContext, viewName).View;

            controller.ViewData.Model = model;

            using (StringWriter sw = new StringWriter())

            {

                ViewContext viewContext = new ViewContext(controller.ControllerContext, view, controller.ViewData, controller.TempData, sw);



                viewContext.View.Render(viewContext, sw);



                return sw.ToString();

            }

        }

    }

View Code

 

2.使用验证

1.

        public ActionResult Index()

        {

            //后台加载其他视图为字符串没有母版页

            ViewBag.tempOne = ViewHelper.RenderViewToString(this, "TempOne", null);

            return View();

        }

        public ActionResult IndexTwo()

        {

            //后台加载其他视图的字符串，带有母版页

            //ViewBag.tempTwo = ViewHelper.RenderViewToString(this, "TempTwo", null);



            //后台指定修改母版页 ，并生成字符串

            ViewBag.tempTwo = ViewHelper.RenderViewToString(this, "TempTwo", "_Layout");

            return View();

        }

        //不使用母版页

        public ActionResult TempOne()

        {

            return View();

        }

        //使用母版页

        public ActionResult TempTwo()

        {

            ////获取 可用字体字符数组

            //string[] nameList = FontFamily.Families.Select(q => q.Name).ToArray();

            //ViewBag.nameList = nameList;

            return View();

        }

2.

        public ActionResult Index()

        {

            //后台加载其他controller 的 视图，并生成字符串

            ViewBag.tempTwo = ViewHelper.RenderViewToString(this, "~/Views/ViewOne/TempTwo.cshtml", null);



            return View();

        }

3.

        public ActionResult Index()

        {

            //显示主视图

            //ViewBag.tempOne = ViewHelper.RenderViewToString(this, "~/views/viewone/TempOne.cshtml", null);

            //作为主视图显示，会加载母版页

            //ViewBag.tempTwo = ViewHelper.RenderViewToString(this, "PartialTwo",null);





            //作为部分视图显示，不会加载母版页,会过滤到部分标签(head,body)

            //ViewBag.tempTwo = ViewHelper.ReaderPartialViewToString(this, "PartialTwo", null);

            //ViewBag.tempTwo = ViewHelper.ReaderPartialViewToString(this, "~/views/viewone/TempOne.cshtml", null);



            //作为部分视图显示，传递参数

            ViewBag.tempTwo = ViewHelper.ReaderPartialViewToString(this, "PartialTwo", new int[] { 1, 2, 3 });



            return View();

        }

        //部分视图

        public PartialViewResult PartialTwo()

        {

            return PartialView();

        }