zyxt/App_Code/TeacherClass.cs

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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

/// <summary>
/// TeacherClass 的摘要说明
/// </summary>
public class TeacherClass
{
	public TeacherClass()
	{
		//
		// TODO: 教师业务类，教师信息实体类
		//
	}

    public string TeacherLogin(string sUid, string sPwd)
    {
        //教师登录验证方法
        string pwd = FormsAuthentication.HashPasswordForStoringInConfigFile(sPwd, "MD5");
        string SqlStr = "SELECT Te_Uid FROM Teachers WHERE Te_Uid='" + sUid + "' AND Te_Pwd='" + pwd + "'";
        DataAccess Das = new DataAccess();
        string Strs = Das.GetStringOne(SqlStr);
        return Strs;
    }
    public string TeacherAnswer(string sUid, string sPwd)
    {
        //教师回答问题验证方法
        string SqlStr = "SELECT Te_Uid FROM Teachers WHERE Te_Uid='" + sUid + "' AND Te_Email='" + sPwd + "'";
        DataAccess Das = new DataAccess();
        string Strs = Das.GetStringOne(SqlStr);
        return Strs;
    }
    public int EditPass(string sUid, string sPwd)
    {
        //修改老师密码
        string pwd = FormsAuthentication.HashPasswordForStoringInConfigFile(sPwd, "MD5");
        string SqlStr = "UPDATE Teachers SET Te_Pwd='" + pwd + "' WHERE Te_Uid='" + sUid + "'";
        DataAccess Das = new DataAccess();
        int nPand = Das.UpdataAccess(SqlStr);
        return nPand;
    }

    public TeacherMessage GetTeacherMessage(string sUid)
    {
        //返回参数sUid　的教信息实体类TeacherMessage 填充
        string SqlStr = "SELECT * FROM Teachers WHERE Te_Uid='" + sUid + "'";
        TeacherMessage Tcm = new TeacherMessage();
        DataAccess Das = new DataAccess();
        Tcm = Das.GetDataTeachers(SqlStr);
        return Tcm;
    }

    public int UpdateTeacherMessage(string sUid, string sPwd, string sName, string sSex, string sZhicheng, string sHone, string sEmail)