判斷kindeditor 是否爲空，如果爲空不提交

        KindEditor.ready(function (K) {
            var editor = K.create('#description', {
                //上傳管理
                uploadJson: '/kindeditor/asp.net/upload_json.ashx',
                //文件管理
                fileManagerJson: '/kindeditor/asp.net/file_manager_json.ashx',
                allowFileManager: true,
                //設置編輯器創建後執行的回調函數
                afterCreate: function () {
                    //alert("after");
                    $("#dailyRecordCreateSub").click(function () {
                        var conCon = $(".ke-content").html();
                        if (editor.isEmpty()) {
                            alert("is null");
                        }
                        else {
                            alert(editor.html());
                        }
                        return false;
                    })



                    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();
                    });
                },
                //上傳文件後執行的回調函數,獲取上傳圖片的路徑
                afterUpload: function (url) {
                    //alert(url);
                },
                //編輯器高度
                width: '786px',
                //編輯器寬度
                height: '300px;',
                //配置編輯器的工具欄
                items: [
                'formatblock', 'fontname', 'fontsize', '|', 'forecolor', 'hilitecolor', 'bold', 'italic', 'underline',
                'removeformat', '|', 'justifyleft', 'justifycenter', 'justifyright', 'insertorderedlist',
                'insertunorderedlist', '|', 'emoticons', 'image', 'link', 'unlink'
                ]
            });
            prettyPrint();
        });

<div class="editor-label storeDailyDesc">
                <div class="storeDailyDescLeft">描述：</div>             
                <div class="storeDailyDescRight">
                @Html.TextAreaFor(model => model.description)      
                @Html.ValidationMessageFor(model => model.description)
                </div>
            </div>