protected void uploadBtn_Click(object sender, EventArgs e)
 {
     classdetailBLL ClassDetailBLL = new classdetailBLL();
     int result = ClassDetailBLL.Add(this, excelFU);
     if (result == 0) MessageBox.Show(this, "上传失败!");
     else MessageBox.ShowAndRedirect(this, "成功导入" + result + "门课程信息","class.aspx");
 }
 /// <summary>
 /// 增加excel数据库
 /// </summary>
 public int Add(Page page, FileUpload fu)
 {
     classtypeBLL ClassTypeBLL=new classtypeBLL();
     classdetailBLL ClassDetailBLL = new classdetailBLL();
     try
     {
         int i = 0;
         if (fu.HasFile == false)
         {
             MessageBox.Show(page, "请选择您要上传的Excel文件!");
             return 0;//当无文件时,返回
         }
         string IsXls = System.IO.Path.GetExtension(fu.FileName).ToString().ToLower();
         if (IsXls != ".xls")
         {
             MessageBox.Show(page, "只可以上传Excel文件!");
             return 0;//当选择的不是Excel文件时,返回
         }
         string path = page.Server.MapPath("storage/classInput/");
         string strpath = fu.PostedFile.FileName.ToString();   //获取Execle文件路径
         string filename = "批量课程信息" + System.DateTime.Now.ToString("yyyyMMddHHmmss").Trim() + ".xls"; //从时间获取文件路径
         fu.PostedFile.SaveAs(path + filename);
         DataSet ds = Tools.ExecleDs(path + filename, filename);
         DataRow[] dr = ds.Tables[0].Select();                        //定义一个DataRow数组
         int rowsnum = ds.Tables[0].Rows.Count;
         if (rowsnum == 0)
         {
             //Response.Write("<script>alert('Excel表为空表,无数据!')</script>");
             MessageBox.Show(page, "Excel表为空表,无数据!");//当Excel表为空时,对用户进行提示
             return 0;
         }
         else
         {
             for (i = 0; i < dr.Length; i++)
             {
                 classdetail ClassDetail = new classdetail();
                 string name = dr[i]["课程名称"].ToString();
                 if (name.Length < 1)
                 {
                     MessageBox.Show(page, "导入第" + (i + 1).ToString() + "门课程信息失败,课程名称不能为空,请检查数据");
                     return i;
                 }
                 else ClassDetail.name = name;
                 int classType=0;
                 try
                 {
                     classType = Convert.ToInt32(dr[i]["课程类别"]);
                 }
                 catch {
                     MessageBox.Show(page, "导入第" + (i + 1).ToString() + "门课程信息失败,课程类别必须为数字,请检查数据");
                     return i;
                 }
                 if (!(ClassTypeBLL.Exists(classType.ToString())))
                 {
                     MessageBox.Show(page, "导入第" + (i + 1).ToString() + "门课程信息失败,课程类别不存在,请检查数据");
                     return i;
                 }
                 else ClassDetail.type = classType;
                 ClassDetail.teacher = dr[i]["教师姓名"].ToString();
                 try
                 {
                     ClassDetail.startTime = Convert.ToDateTime(dr[i]["开始时间"]);
                 }
                 catch {
                     MessageBox.Show(page, "导入第" + (i + 1).ToString() + "门课程信息失败,开始时间格式不正确,请确保为“yyyy/mm/dd  hh:mm:ss”,请检查数据");
                     return i;
                 }
                 try
                 {
                     ClassDetail.endTime = Convert.ToDateTime(dr[i]["结束时间"]);
                 }
                 catch
                 {
                     MessageBox.Show(page, "导入第" + (i + 1).ToString() + "门课程信息失败,结束时间格式不正确,请确保为“yyyy/mm/dd  hh:mm:ss”,请检查数据");
                     return i;
                 }
                 ClassDetail.period = dr[i]["学时"].ToString();
                 ClassDetail.credit = dr[i]["学分"].ToString();
                 ClassDetail.location = dr[i]["开课地点"].ToString();
                 ClassDetail.remark = dr[i]["备注"].ToString();
                 ClassDetailBLL.Add(ClassDetail);
             }
             return i ;
         }
     }
     catch { return 0; }
     finally { }
 }
    protected void addStudentBtn_Click(object sender, EventArgs e)
    {
        classdetail ClassDetail = new classdetail();
        if (isTextBoxEmpty(nameTB, "课程名称")) ClassDetail.name = getText(nameTB);
        else return;
         ClassDetail.type = Convert.ToInt32(typeDDL.SelectedItem.Value);
        if (isTextBoxEmpty(teacherTB, "教师姓名")) ClassDetail.teacher= getText(teacherTB);
        else return;
        string startTimeStr = "";
        if (isTextBoxEmpty(startYearTB, "开始时间-年"))
        {
            string year = getText(startYearTB);
            if (year.Length != 4)
            {
                MessageBox.Show(this, "开始时间-年:格式不正确!");
                return;
            }
            startTimeStr += year+"-";
        }
        if (isTextBoxEmpty(startMonthTB, "开始时间-月"))
        {
            int month = Convert.ToInt32(getText(startMonthTB));
            if (month<1||month>12)
            {
                MessageBox.Show(this, "开始时间-月:格式不正确!");
                return;
            }
            if (month < 10)
                startTimeStr += "0" + month.ToString()+"-";
            else startTimeStr += month.ToString()+"-";
        }
        if (isTextBoxEmpty(startDayTB, "开始时间-日"))
        {
            int day = Convert.ToInt32(getText(startDayTB));
            if (day < 1 || day > 31)
            {
                MessageBox.Show(this, "开始时间-日:格式不正确!");
                return;
            }
            if(day<10)
            startTimeStr += "0"+day.ToString();
            else startTimeStr += day.ToString() ;
        }
            ClassDetail.startTime=Convert.ToDateTime(startTimeStr);
         string endTimeStr = "";
        if (isTextBoxEmpty(endYearTB, "结束时间-年"))
        {
            string year = getText(endYearTB);
            if (year.Length != 4)
            {
                MessageBox.Show(this, "结束时间-年:格式不正确!");
                return;
            }
            endTimeStr += year + "-";
        }
        if (isTextBoxEmpty(endMonthTB, "结束时间-月"))
        {
            int month = Convert.ToInt32(getText(endMonthTB));
            if (month<1||month>12)
            {
                MessageBox.Show(this, "结束时间-月:格式不正确!");
                return;
            }
            if (month < 10)
                endTimeStr += "0" + month.ToString() + "-";
            else endTimeStr += month.ToString() + "-";
        }
        if (isTextBoxEmpty(endDayTB, "结束时间-日"))
        {
            int day = Convert.ToInt32(getText(endDayTB));
            if (day < 1 || day > 31)
            {
                MessageBox.Show(this, "结束时间-日:格式不正确!");
                return;
            }
            if (day < 10)
                endTimeStr += "0" + day.ToString();
            else endTimeStr += day.ToString();
        }
            ClassDetail.endTime=Convert.ToDateTime(endTimeStr);

            if (isTextBoxEmpty(periodTB, "学时")) ClassDetail.period = getText(periodTB);
        else return;
            if (isTextBoxEmpty(creditTB, "学分")) ClassDetail.credit = getText(creditTB);
        else return;
        if (isTextBoxEmpty(locationTB, "开课地点")) ClassDetail.location = getText(locationTB);
        else return;
        ClassDetail.remark=getText(remarkTB);
        try
        {
            classdetailBLL ClassDetailBLL = new classdetailBLL();
            ClassDetailBLL.Add(ClassDetail);
        }
        catch(Exception ex)
        {
            MessageBox.Show(this, "添加失败!");
            Console.WriteLine(ex.Message);

        }
        MessageBox.Show(this, "添加成功!");
    }