checkuser.aspx.cs

ASP.NET 2.0动态网站设计实例源代码,本书介绍了ASP.NET2.0的基础知识

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;

public partial class CheckUser : System.Web.UI.Page
{
 protected void Page_Load(object sender, EventArgs e)
 {
  object userName = Request.Params["username"];
  if (Convert.ToString(userName) =="")
  {
   lblInfo.Text = "请输入用户名！";
  }
  else
  {
   UserBussiness userBuss = new UserBussiness();
   UserEntity user=new UserEntity();
   user.UserName=Convert.ToString(userName);
   if (userBuss.IsUserNameExist(ref user))
   {
    lblInfo.Text = "该用户名已经有人使用！";
   }
   else
   {
    lblInfo.Text = "该用户名可用！";
   }
  }
  hlnkClose.Attributes.Add("onclick", "javascript:window.close();");
 }
}