using?System;
using?System.Data;
using?System.IO;
using?System.Web.UI;
using?System.Web.UI.WebControls;

public?partial?class?admin?:?Page
{
????private?void?Databind（）
????{
????????string?sql?=?string.Empty;?//創(chuàng)建字符串變量用于存儲sql語句
????????//獲取登錄管理員的權(quán)限
????????string?flag?=?ComClass.returnValues（“u_identity“?Session[“adminname“].ToString（））;
????????if?（flag?==?“1“）?//如果其權(quán)限等于1說明是普通管理員
????????{
????????????//只檢索權(quán)限是0的所有普通用戶
????????????sql?=?“select?*?from?tb_user?where?u_identity=0“;
????????}
????????else?//如果不等于1，則是超級管理員
????????{
????????????//檢索所有用戶，包括普通用戶和普通管理員
????????????sql?=?“select?*?from?tb_user?where?u_identity<2“;
????????}
????????DataSet?ds?=?ComClass.getDS（sql）;?//將數(shù)據(jù)存儲在DataSet中
????????GridView1.DataSource?=?ds.Tables[0];?//設(shè)置GridView控件數(shù)據(jù)源
????????GridView1.DataKeyNames?=?new[]?{“ID“};?//設(shè)置主鍵字段
????????GridView1.DataBind（）;?//綁定數(shù)據(jù)
????????for?（int?i?=?0;?i?<=?GridView1.Rows.Count?-?1;?i++）?//遍歷控件的所有行
????????{
????????????//設(shè)置用戶空間大小的DropDownList控件
????????????DropDownList?dlsize?=?（DropDownList）?GridView1.Rows[i].FindControl（“ddlsize“）;
????????????//設(shè)置用戶權(quán)限的DropDownList控件
????????????DropDownList?dllevel?=?（DropDownList）?GridView1.Rows[i].FindControl（“ddllevel“）;
????????????//顯示數(shù)據(jù)庫中設(shè)置的用戶空間的大小
????????????dlsize.SelectedValue?=?ComClass.returnval（“u_disk“?Convert.ToInt32（GridView1.DataKeys[i].Value））;
????????????//顯示數(shù)據(jù)庫中設(shè)置的用戶權(quán)限
????????????dllevel.SelectedValue?=?ComClass.returnval（“u_identity“?Convert.ToInt32（GridView1.DataKeys[i].Value））;
????????}
????}

????protected?void?Page_Load（object?sender?EventArgs?e）
????{
????????if?（!IsPostBack）?//如果頁面第一次加載
????????{
????????????if?（Session[“adminname“]?!=?null）?//如果Session[“adminname“]不為空，說明用戶已經(jīng)登錄
????????????{
????????????????Databind（）;?//調(diào)用Databind方法綁定數(shù)據(jù)到GridView控件
????????????}
????????????else?//否則，如果Session[“adminname“]?為空則說明用戶沒用登錄
????????????{
????????????????Response.Redirect（“Login.aspx“）;?//則自動轉(zhuǎn)向登錄界面
????????????}
????????}
????}

????protected?void?GridView1_RowDataBound（object?sender?GridViewRowEventArgs?e）
????{
????????if?（e.Row.RowType?==?DataControlRowType.DataRow）?//如果是數(shù)據(jù)綁定行
????????{
????????????//鼠標經(jīng)過時，行背景色變?
????????????e.Row.Attributes.Add（“onmouseover“?“this.style.backgroundColor=‘#E6F5FA‘“）;
????????????//鼠標移出時，行背景色變?
????????????e.Row.Attributes.Add（“onmouseout“?“this.style.backgroundColor=‘#FFFFFF‘“）;
????????????e.Row.Attributes.Add（“style“?“height:28px“）;?//設(shè)置行的高度
????????}
????????if?（e.Row.RowType?==?DataControlRowType.Header）?//如果是表頭
????????{
????????????//設(shè)置表頭的背景圖片及高度
????????????e.Row.Attributes.Add（“style“?“background-image:url（‘images/ht_10.gif‘）;height:24px;“）;
????????}
????}

????protected?void?GridView1_PageIndexChanging（object?sender?GridViewPageEventArgs?e）?//單擊分頁時觸發(fā)該事件
????{
????????GridView1.PageIndex?=?e.NewPageIndex;?//重新設(shè)置當前頁的索引
????????Databind（）;?//調(diào)用Databind方法重新綁定數(shù)據(jù)
????}

????protected?void?GridView1_RowCommand（object?sender?GridViewCommandEventA