<link rel="stylesheet" href="/kindeditor/themes/default/default.css" /><script charset="utf-8" src="/kindeditor/kindeditor-all.js"></script><script charset="utf-8" src="/kindeditor/lang/zh_CN.js"></script><script>var editor;KindEditor.ready(function (K) {editor = K.create('#textarea1', {//上传处理程序的路径uploadJson: '/KindEditor/asp.net/upload_json.ashx',imageSizeLimit: '10MB', //批量上传图片单张最大容量imageUploadLimit: 30, //批量上传图片同时上传最多个数//文件管理处理程序的路径fileManagerJson: '/KindEditor/asp.net/file_manager_json.ashx',allowFileManager: true,//要取值设置这里 这个函数就是同步KindEditor的值到textarea文本框afterCreate: function () {var self = this;K.ctrl(document, 13, function () {self.sync();K('form[name=example]')[0].submit();});K.ctrl(self.edit.doc, 13, function () {self.sync();K('form[name=example]')[0].submit();});},//上传后执行的回调函数,获取上传图片的路径//afterUpload: function (data) {//    alert(data);//},width: '900px;',height: '500px;',//编辑工具栏
                     items: ['source', '|', 'undo', 'redo', '|', 'preview', 'print', 'template', 'code', 'cut', 'copy', 'paste','plainpaste', 'wordpaste', '|', 'justifyleft', 'justifycenter', 'justifyright','justifyfull', 'insertorderedlist', 'insertunorderedlist', 'indent', 'outdent', 'subscript','superscript', 'clearhtml', 'quickformat', 'selectall', '|', 'fullscreen', '/','formatblock', 'fontname', 'fontsize', '|', 'forecolor', 'hilitecolor', 'bold','italic', 'underline', 'strikethrough', 'lineheight', 'removeformat', '|', 'image', 'multiimage','flash', 'media', 'insertfile', 'table', 'hr', 'emoticons', 'baidumap', 'pagebreak','anchor', 'link', 'unlink', '|', 'about'],afterCreate: function () { //kindeditor创建后，将编辑器的内容设置到原来的textarea控件里this.sync();},afterChange: function () { //编辑器内容发生变化后，将编辑器的内容设置到原来的textarea控件里this.sync();},afterBlur: function () { //编辑器聚焦后，将编辑器的内容设置到原来的textarea控件里this.sync();}});});</script>

<textarea id="textarea1" name="textarea1" style="width:100%;height:200px;border: 0 none;visibility:hidden;"></textarea>

 <asp:Button ID="submit" runat="server" Text="确&nbsp;认" class="btn btn-primary" Style="margin-right: 20px"  OnClick="submit_Click"  />

 string notes = Request.Form["textarea1"];

<textarea id="textarea1" name="textarea1" style="width:100%;height:200px;border: 0 none;visibility:hidden;"><%=newsConcent%></textarea>