?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 MyOnLineExam.BusinessLogicLayer;

public partial class Web_admin_UserLists : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            ImageButton1.Attributes.Add("OnClick", "javascript:return confirm('確實要刪除這些用戶嗎？')");
            InitData();  //綁定用戶信息        
        }
    }
    //初始化用戶表格
    protected void InitData()
    {
        Users user = new Users();           //創建Users對象
        DataSet ds = user.QueryUsers();     //調用QueryUsers方法查詢用戶并將查詢結果放到DataSet數據集中
        GridView1.DataSource = ds;          //為GridView控件指名數據源        
        GridView1.DataBind();               //綁定數據
    }
    //GridView控件RowDeleting事件
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        Users user = new Users();           //創建Users對象
        string ID = GridView1.DataKeys[e.RowIndex].Values[0].ToString(); //取出要刪除記錄的主鍵值
        if (user.DeleteByProc(ID))
        {
            Response.Write("<script language=javascript>alert('成功刪除該用戶！')</script>");
        }
        else
        {
            Response.Write("<script language=javascript>alert('刪除該用戶失敗！')</script>");
        }
        GridView1.EditIndex = -1;
        InitData();
    }
    //GridView控件RowUpdating事件
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        string ID = GridView1.DataKeys[e.RowIndex].Values[0].ToString(); //取出要刪除記錄的主鍵值
        Users user = new Users();               //創建Users對象
        user.UserName = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtName")).Text;
        user.UserPower = int.Parse(((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtPower")).Text);        
        if (user.UpdateByProc(ID))//使用Users類UpdateByProc方法修改用戶信息
        {
            Response.Write("<script language=javascript>alert('修改成功!')</script>");
        }
        else
        {
            Response.Write("<script language=javascript>alert('修改失敗!')</script>");
        }
        GridView1.EditIndex = -1;
        InitData();
    }
    //GridView控件RowCanceling事件
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        InitData();
    }
    //GridView控件RowEditing事件
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {        
        GridView1.EditIndex = e.NewEditIndex;  //GridView編輯項索引等于單擊行的索引
        InitData();
    }
    //批量刪除事件
    protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {
        Users user = new Users(); //創建Users對象      
        foreach (GridViewRow dr in GridView1.Rows)//對GridView中每行進行判斷
        {
            if (((CheckBox)dr.FindControl("xuanze")).Checked)//如果該行復選按鈕選擇則刪除
            {
                string ID = ((Label)dr.FindControl("Label1")).Text;//取出主鍵
                user.UserID = ID;
                user.DeleteByProc(ID);//調用Users類DeleteByProc方法刪除用戶
            }
        }
    }
}