在cshtml中显示FCKeditor编辑器控件

步骤：
1.    导入文件夹fckeditor
2.    导入dll文件（FredCK.FCKeditorV2.dll）
3.    在cshtml中的代码
@Html.Raw(ViewBag.FckEditor)
4．在Controller中的代码
        public void FCK()
        {
            FredCK.FCKeditorV2.FCKeditor editor = new FredCK.FCKeditorV2.FCKeditor();
            editor.ID = "MyFck";

            System.Web.UI.HtmlControls.HtmlForm hf = new System.Web.UI.HtmlControls.HtmlForm();
            hf.Controls.Add(editor);
            System.Web.UI.Page page = new System.Web.UI.Page();
            string controlOutput = string.Empty;
            page.Controls.Add(hf);
            StringBuilder sb = new StringBuilder();
            using (System.IO.StringWriter sw = new System.IO.StringWriter(sb))
            {
                using (System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw))
                {
                    Server.Execute(page, htw, false);// 调用这个方法将page内容转化成输入流
                    controlOutput = sb.ToString();//将html输出流转化为字符串
                }
            }
            ViewBag.FckEditor = controlOutput;
        }