HyperLesson/Teacher/MyMail-T.aspx.cs

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using BLL;
using Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace HyperLesson
{
    public partial class MyMail_T : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            //加载隐藏的学生账户表
            if(!IsPostBack)
            {
                if((Session["userinfo"] as teacher).TeacherName!=null)
                {
                    Mail mail = new Mail
                    {
                        Sender = (Session["userinfo"] as teacher).TeacherName
                    };
                    this.numlist.DataSource = MailManager.getSnumList(mail);
                    DataBind();
                }
            }
        }
        //发送按钮
        protected void btnSend_Click(object sender, EventArgs e)
        {
            //判断内容非空
            if (this.Mailcontent.Text == "")
            {
                Response.Write("<script>alert('请输入邮件内容！');</script>");
                return;
            }
            //判断是否填了收件人号码
            if (this.ConsignNum.Text == "")
            {
                Response.Write("<script>alert('请输入收件人号码！');</script>");
                return;
            }
            //设置数据
            Mail mai = new Mail
            {
                Sender = (Session["userinfo"] as teacher).TeacherName,
                Maicontent = this.Mailcontent.Text,
                SendDate = DateTime.Now,
                MailState="未读",
                ConsigNum = int.Parse(this.ConsignNum.Text),
                SenderNum = (Session["userinfo"] as teacher).TeacherNum,
            };
            //接收数据并判断数据库中是否存在此用户！
            if (StudentManager.getName(mai.ConsigNum) == null && TeacherManager.getName(mai.ConsigNum) == null)
            {
                Response.Write("<script>alert('该用户不存在！');</script>");
                return;
            }