index.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.IO;
using xmlOp;    //引入XmlOp命名空间

public partial class index : System.Web.UI.Page
{

    string _xmlFile = ConfigurationManager.AppSettings["xmlFile"];
    string _userName = "";  //记录用户名变量
    string _userPwd = "";   //记录用户密码变量

    Logic lg = new Logic();   //声明一个Logic类对象
    DataSet ds = new DataSet();  //创建一个空DataSe对象

    protected void Page_Load(object sender, EventArgs e)
    {

        //读取Cookie里的帐号和密码并赋值给变量
        HttpCookie cookie = Request.Cookies["userInfo"];
        if (cookie != null)
        {
            _userName = cookie.Values["userName"].ToString();
            _userPwd = cookie.Values["userPwd"].ToString();
        }
        //页面第一次加载
        if (!IsPostBack)
        {
            if (_userName == null || _userName=="") //非法访问时
            {
                Response.Write("你没有登录，<a href='default.aspx'>请登录</a> !");
                Response.End();
            }
            BindToDataGrid();   //调用数据绑定函数
        }
    }


    //数据绑定到DataGrid，显示班级所有成员
    private void BindToDataGrid()
    {
        try
        {
            XmlOp op = new XmlOp(_xmlFile); //声明XmlOp类对象
            ds = op.GetDs("//Root");
            this.DataGrid1.DataKeyField = "Name"; //数据表关键字段集合
            this.DataGrid1.DataSource = ds;
            this.DataGrid1.DataBind();
            Session["thisDS"] = ds; //把数据集保存到Session变量中
            BindToRepeater(this.Repeater1,1); //绑定Repeater1           
        }
        catch
        {
            Response.Write("出现不明错误 !");
            Response.End();
        }
    }


    //数据绑定到Repeater
    private void BindToRepeater(Repeater rp,int p)
    {
        XmlOp op = new XmlOp(_xmlFile);
        ds = op.GetDs("//Root/Student[Name='" + _userName + "']");
        P1_P2(p);
        rp.DataSource = ds.Tables[0].DefaultView;
        rp.DataBind();
    }
    //两个模板只显示一个
    private void P1_P2(int i)
    {
        if (i == 1) //显示Repeater1
        {
            this.Repeater2.Visible = false;
            this.Repeater1.Visible = true;
        }
        if (i == 2) //显示Repeater2
        {
            this.Repeater2.Visible = true;
            this.Repeater1.Visible = false;
        }
    }

    //修改信息按钮
    protected void btnShowP2_Click(object sender, EventArgs e)
    {
        BindToRepeater(this.Repeater2, 2); //绑定Repeater2
    }


    //修改我的信息
    protected void btnUpdate_Click(object sender, EventArgs e)
    {        
        if (IsValid)   //通过验证
        {
            string _nickName = ((TextBox)this.Repeater2.Items[0].FindControl("txtNickName")).Text.Trim();
            string _pwd = ((TextBox)this.Repeater2.Items[0].FindControl("txtPwd")).Text.Trim();
            string _birthday = ((TextBox)this.Repeater2.Items[0].FindControl("txtBirthday")).Text.Trim();
            string _qq = ((TextBox)this.Repeater2.Items[0].FindControl("txtQQ")).Text.Trim();
            string _msn = ((TextBox)this.Repeater2.Items[0].FindControl("txtMsn")).Text.Trim();
            string _Tel = ((TextBox)this.Repeater2.Items[0].FindControl("txtTel")).Text.Trim();
            string _Email = ((TextBox)this.Repeater2.Items[0].FindControl("txtEmail")).Text.Trim();
            string _address = ((TextBox)this.Repeater2.Items[0].FindControl("txtAddress")).Text.Trim();
            string _work = ((TextBox)this.Repeater2.Items[0].FindControl("txtWork")).Text.Trim();
            string _homepage = ((TextBox)this.Repeater2.Items[0].FindControl("txtHomepage")).Text.Trim();
            string _photo = ((FileUpload)this.Repeater2.Items[0].FindControl("FileUploadImage")).FileName;
            string _photoType = ((FileUpload)this.Repeater2.Items[0].FindControl("FileUploadImage")).PostedFile.ContentType;
            string _time = DateTime.Now.ToString();
            try
            {
                XmlOp op = new XmlOp(_xmlFile);                
                string _type = _photoType;
                string _file = _photo.ToLower();
                if (_photo != "")   //如果没有选择图片时，就不需修改记录中的Photo属性
                {
                    if (_photoType.Substring(0, 5) == "image")
                    {
                        //上传图片
                        _photo = "images/" + _userName + _file.Substring(_file.LastIndexOf("."));
                        ((FileUpload)this.Repeater2.Items[0].FindControl("FileUploadImage")).SaveAs(Server.MapPath(_photo));
                    }
                    else
                    {
                        lg.Msg("图片格式不对!");
                        return;
                    }
                    string _xmlParentNode = "//Root/Student[Name='" + _userName + "']";
                    string[] _xmlNode ={ "NickName", "Pwd", "Birthday", "QQ", "Msn", "Tel", "Email", "Address", "Work", "Homepage", "Photo", "Time", };
                    string[] _xmlNodeTxt ={ _nickName, _pwd, _birthday, _qq, _msn, _Tel, _Email, _address, _work, _homepage, _photo, _time };
                    op.UpdateNode(_xmlParentNode, _xmlNode, _xmlNodeTxt);
                }
                else  //选择了图片，需要修改记录中的Photo属性
                {
                    string _xmlParentNode = "//Root/Student[Name='" + _userName + "']";
                    string[] _xmlNode ={ "NickName", "Pwd", "Birthday", "QQ", "Msn", "Tel", "Email", "Address", "Work", "Homepage", "Time", };
                    string[] _xmlNodeTxt ={ _nickName, _pwd, _birthday, _qq, _msn, _Tel, _Email, _address, _work, _homepage,_time };
                    op.UpdateNode(_xmlParentNode, _xmlNode, _xmlNodeTxt);
                }                
                op.Save(_xmlFile);  //保存新的信息
                BindToRepeater(this.Repeater1,1);   //重新绑定Repeater1控件
                lg.Msg("你的登录密码已修改为  '" + _pwd + "'");
            }
            catch
            {
                lg.Msg("修改失败!");
            }
        }
    }

    //取消修改
    protected void btnCancer_Click(object sender, EventArgs e)
    {
        P1_P2(1);   //显示Repeater1，隐藏Repeater2
    }

    //绑定到前台照片照片显示的函数
    public string Img(string img, string sex)
    {
        if (img == "")  //没有图片时
        {
            if (sex == "男生")
                return "img/boy.gif";  //显示默认的男生图片
            else
                return "img/girl.gif";  //显示默认的女生图片
        }
        else   //有图片时
            return img;
    }

    //绑定到前台当前登陆用户身份的函数
    public string Admin(string admin)
    {
        if (admin == "yes") //是一般管理员
        {
            Session["NormalAdmin"] = "yes"; //将身份信息写入Session中
            return "<a href='admin.aspx' target='_blank'>管理班级</a>";
        }
        else   //不是一般管理员
            return "非管理员";
    }

    //查找同学
    protected void btnFind_Click(object sender, EventArgs e)
    {
        DataTable newDt = new DataTable();  //创建一个新的空表
        DataTable dt = ((DataSet)Session["thisDS"]).Tables[0]; //读取Session中的表
        newDt = dt.Clone(); //克隆表
        DataRow[] dr = dt.Select("Name like '%" + this.txtStuName.Text + "%'"); //查找同学并放入数据行数组
        for (int i = 0; i < dr.Length; i++)   
        {
            newDt.ImportRow((DataRow)dr[i]); //重组新的数据表
        }
        this.DataGrid1.DataSource = newDt.DefaultView;  //DataGrid1重新绑定
        this.DataGrid1.DataBind();
    }


}