MVC如何将用户控件(分部视图，RenderPartial,ViewUserControl)内容转换为字符串并输出

 

// 将用户控件转换为字符串

01    public static string RenderPartialToString(string file, object view)

02    {

03         ViewDataDictionary vd = new ViewDataDictionary(view);

04         ViewPage viewPage  = new ViewPage { ViewData= vd };

05         Control control = viewPage.LoadControl(file);

06     

07         viewPage.Controls.Add(control);

08     

09         StringBuilder str = new StringBuilder();

10         using (StringWriter stringWriter = new StringWriter(str))

11         {

12             using (HtmlTextWriter htmlTextWriter = new HtmlTextWriter(stringWriter))

13             {

14                 viewPage.RenderControl(htmlTextWriter );

15             }

16         }

17     

18         return str.ToString();

19    }

// 调用它

1    public string GetHtmlFromPartial()

2    {

3          

4        

5     

6         string s = RenderPartialToString("~/Views/usercart.ascx", null);

7     

8         return s;

9    }