studChangePwd.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.Data.SqlClient;

public partial class changePwd : System.Web.UI.Page
{
    SqlConnection conn;
    SqlCommand cmd;
    //SqlDataAdapter sda;
    SqlDataReader dr;
    //DataSet ds;

    protected void Page_Load(object sender, EventArgs e)
    {
        // 下载于www.51aspx.com
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string oldPwd = this.oldPwd.Text;
        string newPwd = this.newPwd.Text;
        string rightPwd = this.rightPwd.Text;
        conn = sqldata.createCon();
        conn.Open();
        if (Session["studPwd"].ToString() == oldPwd)
        {
            if (rightPwd == newPwd)
            {
                string studName = Session["studName"].ToString();
                string commandText = "update student set studPwd='" + newPwd + "'where studName='" + studName + "'";
                cmd = new SqlCommand(commandText, conn);
                if (Convert.ToInt32(cmd.ExecuteNonQuery()) > 0)
                {
                    Response.Write("<script>alert('恭喜你，密码修改成功！');location.href='studGoodhome.aspx'</script>");
                    this.newPwd.Text = "";
                    this.rightPwd.Text = "";
                }
                else
                {
                    ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "info", "alert('数据库操作失败，请稍后再试！');", true);
                    this.oldPwd.Text = "";
                    this.newPwd.Text = "";
                    this.rightPwd.Text = "";
                }
            }
            else
            {
                ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "info", "alert('确认密码不正确！');", true);
                this.oldPwd.Text = "";
                this.newPwd.Text = "";
                this.rightPwd.Text = "";
            }