private string DoSubmit()
        {
            string result = "";

            Model.CCOM.Homework work_model = new BLL.CCOM.Homework().GetModel(Homework_id);
            this.type.InnerText = new BLL.CCOM.Datum_type().GetModel(work_model.DatumType_id).DatumType_name;
            if (work_model.DatumType_id == 1)//周志
            {
                Model.CCOM.Week_log week_model = new BLL.CCOM.Week_log().GetModel(CheckId);
                week_model.Advice = this.txtAdvice.InnerText;
                if (!new BLL.CCOM.Week_log().Update(week_model))
                {
                    result = "评价发生异常";
                }
            }
            else                            //其他
            {
                Model.CCOM.Datum datum_model = new BLL.CCOM.Datum().GetModel(CheckId);
                datum_model.Tutor_advice = this.txtAdvice.InnerText;
                if (!new BLL.CCOM.Datum().Update(datum_model))
                {
                    result = "评价发生异常";
                }
            }

            return(result);
        }
        public void ShowInfo()
        {
            Model.CCOM.Homework work_model = new BLL.CCOM.Homework().GetModel(Homework_id);
            this.type.InnerText = new BLL.CCOM.Datum_type().GetModel(work_model.DatumType_id).DatumType_name;
            if (work_model.DatumType_id == 1)//周志
            {
                this.fileTR.Visible         = false;
                this.logTRcontent.Visible   = true;
                this.logTRproblem.Visible   = true;
                this.logTRplan.Visible      = true;
                this.logTRstarttime.Visible = true;
                this.logTRendtime.Visible   = true;

                Model.CCOM.Week_log       week_model = new BLL.CCOM.Week_log().GetModel(CheckId);
                Model.CCOM.Topic_relation rela_model = new BLL.CCOM.Topic_relation().GetModel(week_model.Topic_relation_id);
                this.name.InnerText         = new BLL.CCOM.User_information().GetModel(rela_model.Student_id).User_realname;
                this.time.InnerText         = week_model.Submit_time.ToString("yyyy年MM月dd日 ddd HH:mm");
                this.txtAdvice.InnerText    = week_model.Advice;
                this.txtStarttime.InnerText = week_model.Start_time.ToString("yyyy-MM-dd");
                this.txtEndtime.InnerText   = week_model.End_time.ToString("yyyy-MM-dd");
                this.lbContent.InnerText    = week_model.Work_condition;
                this.lbProblem.InnerText    = week_model.Problem;
                this.lbPlan.InnerText       = week_model.Work_plan;
            }
            else                            //其他
            {
                this.fileTR.Visible         = true;
                this.logTRcontent.Visible   = false;
                this.logTRproblem.Visible   = false;
                this.logTRplan.Visible      = false;
                this.logTRstarttime.Visible = false;
                this.logTRendtime.Visible   = false;

                Model.CCOM.Datum          datum_model = new BLL.CCOM.Datum().GetModel(CheckId);
                Model.CCOM.Topic_relation rela_model  = new BLL.CCOM.Topic_relation().GetModel(datum_model.Topic_relation_id);
                this.name.InnerText      = new BLL.CCOM.User_information().GetModel(rela_model.Student_id).User_realname;
                this.time.InnerText      = datum_model.Submit_time.ToString("yyyy年MM月dd日 ddd HH:mm");
                this.txtAdvice.InnerText = datum_model.Tutor_advice;

                //this.file.InnerHtml = "<p><a href='" +
                //                "/home/news/Attach.aspx?id=" + DESEncrypt.Encrypt(datum_model.Datum_id.ToString()) +
                //                ("&address=") + (HttpUtility.UrlEncode(datum_model.File_path)) +
                //                ("&name=") + (HttpUtility.UrlEncode(datum_model.File_name)) +
                //                ("' target='_blank' >") +
                //                (datum_model.File_name) +
                //                ("</a>") +
                //                (OnlineViewHelper.GetOnlineViewWrapLink(datum_model.File_path, datum_model.File_name)) + ("</p>");
                this.lbtnDownLoad.Text = datum_model.File_name;
            }
        }
        private string DoAction()
        {
            string result = "";

            #region   文件
            if (this.txtUserUpload.PostedFile.FileName == "")
            {
                return("请选择上传文件");
            }
            string path = "../../../upload/file/";

            //取出所选文件的本地路径
            string fullFileName = this.txtUserUpload.PostedFile.FileName;
            //从路径中截取出文件名
            string fileName = fullFileName.Substring(fullFileName.LastIndexOf("\\") + 1);
            //限定上传文件的格式
            string type         = fullFileName.Substring(fullFileName.LastIndexOf(".") + 1);
            string saveFileName = "";
            if (type == "doc" || type == "docx" || type == "xls" || type == "xlsx" || type == "ppt" || type == "pptx" || type == "pdf" || type == "jpg" || type == "bmp" || type == "gif" || type == "png" || type == "txt" || type == "zip" || type == "rar")
            {
                //将文件保存在服务器中根目录下的files文件夹中
                saveFileName = Server.MapPath(path) + "\\" + fileName;
                this.txtUserUpload.PostedFile.SaveAs(saveFileName);
            }
            else
            {
                return("请选择正确的文件格式");
            }
            #endregion

            Model.CCOM.Homework   work_model = new BLL.CCOM.Homework().GetModel(homeworkId);
            Model.CCOM.View_Datum model      = new BLL.CCOM.View_Datum().GetModel(" Homework_id=" + homeworkId);
            try
            {
                if (model == null)          //增加一条数据
                {
                    Model.CCOM.Datum datum_model = new Model.CCOM.Datum();
                    datum_model.Homework_id       = homeworkId;
                    datum_model.Submit_time       = DateTime.Now;
                    datum_model.DatumType_id      = work_model.DatumType_id;
                    datum_model.File_name         = fileName;
                    datum_model.File_path         = saveFileName;
                    datum_model.Topic_relation_id = new BLL.CCOM.Topic_relation().GetModel(" Student_id=" + GetAdminInfo_CCOM().User_id).Topic_relation_id;
                    new BLL.CCOM.Datum().Add(datum_model);
                }
                else                        //更新一条数据
                {
                    Model.CCOM.Datum datum_model = new BLL.CCOM.Datum().GetModel(model.Datum_id);
                    FileOperate.FileDel(datum_model.File_path);//删除原有文件
                    datum_model.Submit_time = DateTime.Now;
                    datum_model.File_name   = fileName;
                    datum_model.File_path   = saveFileName;
                    new BLL.CCOM.Datum().Update(datum_model);
                }
            }
            catch {
                result = "提交发生异常";
            }

            return(result);
        }