viewuser.aspx.cs

一个简单的网上书店形式

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 ASPNET2BBS;
using System.Data.SqlClient;

public partial class ViewUser : System.Web.UI.Page
{
    int nUserID = -1;

    protected void Page_Load(object sender, EventArgs e)
    {
        ///获取参数的值
        if (Request.Params["UserID"] != null)
        {
            nUserID = Int32.Parse(Request.Params["UserID"].ToString());
        }

        if (!Page.IsPostBack)
        {
            ///绑定控件的数据
            BindRoleData();
            if (nUserID > -1)
            {                
                BindUserData(nUserID);
            }
			ViewState["BackURL"] = Request.UrlReferrer.ToString();
        }
    }

    private void BindUserData(int nUserID)
    {
        ///定义获取数据的类
        User user = new User();
        SqlDataReader recu = user.GetSingleUser(nUserID);

        ///读取数据，并显示在网页上
        if (recu.Read())
        {
            ///设置TextBox控件的数据
            UserName.Text = recu["UserName"].ToString();
            Email.Text = recu["Email"].ToString();
			AliasName.Text = recu["AliasName"].ToString();

            ///设置选择控件的值
            ASPNET2System.SetListBoxItem(RoleList, recu["RoleID"].ToString());
        }

        ///关闭数据读取器和数据库的连接
        recu.Close();    
    }

    private void BindRoleData()
    {
        ///获取数据源
        ASPNET2BBS.Role role = new Role();
        SqlDataReader recr = role.GetRoles();

        ///设定控件的数据源，Text域属性、value域属性
        RoleList.DataSource = recr;
        RoleList.DataTextField = "RoleName";
        RoleList.DataValueField = "RoleID";

        ///绑定控件的数据
        RoleList.DataBind();

        ///关闭数据源和数据库的链接
        recr.Close();
    }

    protected void ReturnBtn_Click(object sender, EventArgs e)
    {
        ///返回管理页面
		Response.Redirect(ViewState["BackURL"].ToString());
    }
}