studentManager/Mpwd.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
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;
using System.Text.RegularExpressions;
using System.Data.SqlClient;
using Mysqlserver;


public partial class studentManager_Mpwd : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    /// <summary>
    /// 修改密码
    /// </summary>
    private void UPpwd()
    {
        SqlServerDataBase db = new SqlServerDataBase();
        SqlConnection conn = db.DBconn();
        string Username = Session["user_name"].ToString();
        string sql = "update [student_inf]  set [Stupwd] ='" +TextBox2.Text + "' where [studentName]='" + Username + "' ";
       
        if(db.Insert(sql, conn))
        {

            LabelWarningMessage.Text = "修改成功！";


        }
        else
        { LabelWarningMessage.Text = "修改失败！";

        }
     
    }
    /// <summary>
    /// 检验原来的密码
    /// </summary>
    private void chkpwd()
    {
        SqlServerDataBase db = new SqlServerDataBase();
        SqlConnection conn = db.DBconn();

    
      string sql="select * from  student_inf  where studentName='" + Session["User_name"].ToString() + "' and Stupwd='" + TextBox1.Text + "'";

            DataSet ds = db.Select(sql, conn);
            if (ds.Tables[0].Rows.Count > 0)
            {
                UPpwd();
            }