返回剃刀局部視圖

Question

在MVC 2與普通視圖引擎，我可以通過return Json()

但隨着新的Razor .cshtml觀點我無法弄清楚返回ASCX局部視圖作爲字符串這個怎麼做。我一直在收到Type 'ASP.CustomerForm_cshtml' does not inherit from 'System.Web.UI.UserControl'.

部分視圖繼承自System.Web.Mvc.WebViewPage<T>，並且如果我從第一個錯誤說的System.Web.UI.UserControl<T>繼承，則彈出另一個錯誤。

有關如何使用ASP MVC 3和Razor視圖引擎解決此問題的任何想法？

這是我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

這威力幫助你我都寫過了我的頭頂部沒有測試它除了以驗證它返回渲染CSHTML文件。

我認爲這是一個控制器中的方法。

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

這是代碼的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; 
    }