摘自：http://hi.baidu.com/281305450/blog/item/e70cc344f714128cb3b7dc64.html
存储过程检测用户名是否重复
create proc checklogin
@username nchar(20),
@pwd nchar(20),
@hasrow int output
as
select @hasrow=count(*) from users where username=@username and pwd=@pwd
GO
存储过程写入数据
create proc adduser
@username nchar(20),
@pwd nchar(20)
as
begin
insert into users (username,pwd)values(@username,@pwd)
end
GO
aspx页面
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" Debug="true" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
用户名:<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="TextBox1" ErrorMessage="*"></asp:RequiredFieldValidator>
<br />
密码:<asp:TextBox ID="TextBox2" runat="server" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"
ControlToValidate="TextBox2" EnableTheming="True" ErrorMessage="*"></asp:RequiredFieldValidator>
<br />
确认密码:<asp:TextBox ID="TextBox3" runat="server" TextMode="Password"></asp:TextBox>
<asp:CompareValidator ID="CompareValidator1" runat="server"
ControlToCompare="TextBox3" ControlToValidate="TextBox2"
CultureInvariantValues="True" ErrorMessage="两次密码不一样"></asp:CompareValidator>
<br />
<br />
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
</div>
</form>
</body>
</html>
CS页面
using System;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
string connstr = "Data Source=.;Database=test;UID=sa;PWD=sa;";
SqlConnection conn = new SqlConnection(connstr);
SqlCommand command = new SqlCommand("checkuser",conn);
command.CommandType = CommandType.StoredProcedure;
SqlParameter parameter = new SqlParameter("@username", SqlDbType.NChar, 20);
parameter.Value = this.TextBox1.Text;
command.Parameters.Add(parameter);
SqlParameter parameter1 = new SqlParameter("@result",SqlDbType.Int,4);
parameter1.Direction = ParameterDirection.Output;
command.Parameters.Add(parameter1);
conn.Open();
command.ExecuteNonQuery();
conn.Close();
int result =Convert.ToInt32( parameter1.Value);
if (result == 1)
{
Response.Write("此用户已经存在");
}
else
{
//Response.Write("可以注册");
SqlCommand command1 = new SqlCommand("adduser", conn);
command1.CommandType = CommandType.StoredProcedure;
SqlParameter para_username = new SqlParameter("@username", SqlDbType.NChar);
para_username.Value = this.TextBox1.Text;
command1.Parameters.Add(para_username);
SqlParameter para_pwd = new SqlParameter("@pwd", SqlDbType.NChar);
para_pwd.Value = this.TextBox2.Text;
command1.Parameters.Add(para_pwd);
conn.Open();
command1.ExecuteNonQuery();
conn.Close();
Response.Write("添加成功!");
}
}
}