这次给大家带来用Ajax如何验证邮箱、用户名的唯一性，用Ajax验证邮箱、用户名唯一性的注意事项有哪些，下面就是实战案例，一起来看一下。
废话不多说了，直接给大家贴代码了，具体代码如下所示：
reg.ashx代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace WebT1.Ti.html2
{
///
/// reg 的摘要说明
///
public class reg : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
if (context.Request["email"] != null)
{
string strEmail = context.Request["email"];
List lstUser = DataService.GetUserList();
var v = lstUser.Where(p => p.Email == strEmail);
int iCount = 0;
if (v.Count() > 0)
{
iCount = 1;
}
context.Response.ContentType = "text/plain";
context.Response.Write(iCount.ToString());
}
}
public bool IsReusable
{
get
{
return false;
}
}
}
public class DataService
{
///
/// 模拟已注册用户数据
///
public static List GetUserList()
{
var list = new List();
list.Add(new UserModel() { Email = "t1@demo.com" });
list.Add(new UserModel() { Email = "t2@demo.com" });
list.Add(new UserModel() { Email = "t3@demo.com" });
list.Add(new UserModel() { Email = "t4@demo.com" });
list.Add(new UserModel() { Email = "t5@demo.com" });
return list;
}
}
public class UserModel
{
public string Email { get; set; }
}
}
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