净MVC：从任何视图

Question

阅读母版页路径我有一个方法

RenderToString(string pathToView, string pathToMasterPage) 

其中，好像是这个名字已经说，渲染视图，并返回结果为一个字符串。目前，我必须将路径传递到主页面，作为该方法的参数。但由于视图本身包含媒体链接母版页

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %> 

我想知道是否有可能programaticly阅读价值的定义，所以我没有把它作为一个单独的参数了吗？

Answer 1

的RenderToString方法是这样的：

public virtual string RenderToString(string viewPath, string masterPath) 
{ 
    ControllerContext controllerContext = this.ControllerContext; 
    Stream filter = null; 
    ViewPage viewPage = new ViewPage(); 

    viewPage.ViewContext = new ViewContext(this.ControllerContext, new WebFormView(viewPath, masterPath), this.ViewData, this.TempData); 

    //get the response context, flush it and get the response filter. 
    var response = viewPage.ViewContext.HttpContext.Response; 
    response.Flush(); 
    var oldFilter = response.Filter; 

    try 
    { 
     //put a new filter into the response 
     filter = new MemoryStream(); 
     response.Filter = filter; 

     //render the view into the memorystream and flush the response 
     viewPage.ViewContext.View.Render(viewPage.ViewContext, viewPage.ViewContext.HttpContext.Response.Output); 
     response.Flush(); 

     //read the rendered view 
     filter.Position = 0; 
     var reader = new StreamReader(filter, response.ContentEncoding); 
     return reader.ReadToEnd(); 
    } 
    finally 
    { 
     //Clean up. 
     if (filter != null) 
     { 
      filter.Dispose(); 
     } 

     //Now replace the response filter 
     response.Filter = oldFilter; 
    } 
} 

它并不完美。执行该方法后，您不能再执行任何重定向，因为必须刷新响应，因此头文件已经发送。如果您找到解决方法，请在此处发布。