EditPwd.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 EditPwd : System.Web.UI.Page
{
    private int nUserID = -1;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Request.Params["UserID"] != null)
        {
            ///获取参数nUserID的值
            if (Int32.TryParse(Request.Params["UserID"].ToString(), out nUserID) == false)
            {

                return;
            }
        }
        if (!Page.IsPostBack)
        {   ///判断参数是否正确
            if (nUserID > -1)
            {   ///从数据库中读取数据，并显示
                BindUserData(nUserID);
            }
            else
            {
                updatebtn.Enabled = false;
            }
        }

    }
    private void BindUserData(int nUserID)
    {
        ///获取数据
        IUser user = new User();
        SqlDataReader dr = user.GetSingleUser(nUserID);

        if (dr.Read())
        {   ///读取数据
            username.Text = dr["UserName"].ToString();
        }
        ///关闭数据源
        dr.Close();
    }
    protected void updatebtn_click(object sender, EventArgs e)
    {
        ///获取用户数据
        IUser user = new User();
        SqlDataReader dr = user.GetUserLoginByProc(username.Text.Trim(), oldpassword.Text.Trim());

        ///读取UserID的值
        string sUserID = "";