返回剃刀局部视图

Question

在MVC 2与普通视图引擎，我可以通过return Json()

但随着新的Razor .cshtml观点我无法弄清楚返回ASCX局部视图作为字符串这个怎么做。我一直在收到Type 'ASP.CustomerForm_cshtml' does not inherit from 'System.Web.UI.UserControl'.

部分视图继承自System.Web.Mvc.WebViewPage<T>，并且如果我从第一个错误说的System.Web.UI.UserControl<T>继承，则弹出另一个错误。

有关如何使用ASP MVC 3和Razor视图引擎解决此问题的任何想法？

这是我ControlToString功能：

private string ControlToString(string controlPath, object model) 
    { 
     ViewPage page = new ViewPage(); 
     ViewUserControl ctl = (ViewUserControl)page.LoadControl(controlPath); 
     page.Controls.Add(ctl); 
     page.ViewData.Model = model; 
     page.ViewContext = new ViewContext(); 
     System.IO.StringWriter writer = new System.IO.StringWriter(); 
     System.Web.HttpContext.Current.Server.Execute(page, writer, false); 
     string outputToReturn = writer.ToString(); 
     writer.Close(); 
     //return this.Json(outputToReturn.Trim()); 
     return outputToReturn.Trim(); 
    } 

Answer 1

这威力帮助你我都写过了我的头顶部没有测试它除了以验证它返回渲染CSHTML文件。

我认为这是一个控制器中的方法。

private string ControlToString(string controlPath, object model) { 
    CshtmlView control = new CshtmlView(controlPath); 

    HtmlTextWriter writer = new HtmlTextWriter(new System.IO.StringWriter()); 
    control.Render(new ViewContext(this.ControllerContext, control, this.ViewData, this.TempData, writer), writer); 

    string value = ((StringWriter)writer.InnerWriter).ToString(); 

    return value; 
} 

Answer 2

这是代码的MVC 3 Beta版：

private string ControlToString(string controlPath, object model) 
    { 
     //CshtmlView control = new CshtmlView(controlPath); 
     RazorView control = new RazorView(this.ControllerContext, controlPath, null, false, null); 

     this.ViewData.Model = model; 

     HtmlTextWriter writer = new HtmlTextWriter(new System.IO.StringWriter()); 
     control.Render(new ViewContext(this.ControllerContext, control, this.ViewData, this.TempData, writer), writer); 

     string value = ((StringWriter)writer.InnerWriter).ToString(); 

     return value; 
    }