我的注册曾经完全正常，但我已经对它进行了多次修改，所以我无法找出导致此问题的原因......
当我输入详细信息并单击“注册”时，该页面需要很长时间才能使用asp.net本地服务器进行处理。然后它最后说我已经注册了，但是已经在数据库中输入了10-30个条目（有些条目甚至不相同，不同的字段丢失等）
我可以清除数据库中所有已创建的条目，然后重新打开它，并且它还增加了10-30个...它将一直这样做，直到我杀死它创建的asp.net开发服务器时＃34;开始时没有调试＆＃34;。
以下是该页面的c＃文件：
using System;
using System.Text;
using System.Data;
using System.Data.OleDb;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Net.Mail;
public partial class Register : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (this.IsPostBack)
{
//Display welcome message
lblMessage.Text = "Welcome " + txtFirstName.Text + "!";
//Save the registration data into database, 17/8/2014
SaveRegistration();
sendEmail();
}
}
private void SaveRegistration()
{
OleDbConnectionStringBuilder sb = new OleDbConnectionStringBuilder();
sb.Provider = "Microsoft.ACE.OLEDB.12.0";
//sb.DataSource = Server.MapPath("/carpec02/asp_assignment/App_Data/shoeDB.accdb");
sb.DataSource = Server.MapPath("~/App_Data/shoeDB.accdb");
OleDbConnection myConnection = new OleDbConnection(sb.ConnectionString);
string queryString = "";
OleDbCommand myCmd = new OleDbCommand(queryString, myConnection);
//Open connection
myConnection.Open();
//Build the query string
StringBuilder queryStringBuilder = new StringBuilder("Insert into customer([customerFirstName], [customerLastName], [customerPassword], [customerPhHome], [customerPhWork], [customerPhMobile], [customerEmail], [customerPrivilege], [customerUsername])");
queryStringBuilder.Append("values ('");
queryStringBuilder.Append(txtFirstName.Text);
queryStringBuilder.Append("','");
queryStringBuilder.Append(txtLastName.Text);
queryStringBuilder.Append("','");
queryStringBuilder.Append(txtPassword.Text);
queryStringBuilder.Append("','");
queryStringBuilder.Append(txtPhHome.Text);
queryStringBuilder.Append("','");
queryStringBuilder.Append(txtPhWork.Text);
queryStringBuilder.Append("','");
queryStringBuilder.Append(txtPhMobile.Text);
queryStringBuilder.Append("','");
queryStringBuilder.Append(txtEmail.Text);
queryStringBuilder.Append("','");
queryStringBuilder.Append("User");
queryStringBuilder.Append("','");
queryStringBuilder.Append(txtUsername.Text);
queryStringBuilder.Append("')");
queryString = queryStringBuilder.ToString();
//Assign the QueryString to the command object
myCmd.CommandText = queryString;
//Execute the query
myCmd.ExecuteNonQuery();
//Create another command object to display the inserted record ID
OleDbCommand anotherCmd = new OleDbCommand("SELECT @@IDENTITY", myConnection);
int numId = Convert.ToInt32(anotherCmd.ExecuteScalar());
lblDataId.Text = "<h3>Your registration number is <big>" + numId.ToString() + "</big></h3>";
//Close the connection
myConnection.Close();
}
//Modified from http://www.aspsnippets.com/Articles/How-to-create-Contact-Us-Page-in-ASPNet.aspx
protected void sendEmail()
{
try
{
string strReceiver = txtEmail.Text;
MailMessage mm = new MailMessage("fakeemail@gmail.com", strReceiver); //Sender / receiver
mm.Subject = "Welcome to Awesome Shoes!";
mm.Body = "Thank you, " + txtFirstName.Text + " " + txtLastName.Text + ", for registering at Awesome Shoes. Your username is: " + txtUsername + " and your password is " + txtPassword;
mm.IsBodyHtml = true;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.EnableSsl = true;
System.Net.NetworkCredential NetworkCred = new System.Net.NetworkCredential();
NetworkCred.UserName = "fakeemail@gmail.com";
NetworkCred.Password = "fake123";
smtp.UseDefaultCredentials = true;
smtp.Credentials = NetworkCred;
smtp.Port = 587;
smtp.Send(mm);
lblMessage2.Text = "Email Sent Sucessfully.";
}
catch
{
}
}
}
以下是该页面的asp.net代码：
<%@ Page Title="" Language="C#" MasterPageFile="~/AwesomeShoes.master" AutoEventWireup="true" CodeFile="Register.aspx.cs" Inherits="Register" %>
<asp:Content ID="Content1" ContentPlaceHolderID="TabTitle" Runat="Server">
Register - Awesome Shoes
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="Head" Runat="Server">
</asp:Content>
<asp:Content ID="Content4" ContentPlaceHolderID="CurrentTabRegister" Runat="Server">
class="currentTab"
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="MainTitle" Runat="Server">
Register
</asp:Content>
<asp:Content ID="Content5" ContentPlaceHolderID="MainBody" Runat="Server">
<script type="text/javascript">
function IsInteger(input) {
var regEx = /^\+{0,1}\d+\d*$/;
return regEx.test(input);
}
function btnRegister_OnClick()
{
var txtFirstName = document.getElementById('MainBody_txtFirstName');
if (txtFirstName.value.length == 0)
{
alert("You must enter all the required information before submitting");
return;
}
var txtEmail = document.getElementById('MainBody_txtEmail');
if (txtEmail.value.indexOf('@') == -1)
{
alert("You must enter an @ for your email address.");
return;
}
var txtPassword = document.getElementById('MainBody_txtPassword');
if (txtPassword.value.length < 6) {
alert("Your password must be at least 6 characters long");
return;
}
var txtRepeatPassword = document.getElementById('MainBody_txtRepeatPassword');
if (txtRepeatPassword.value != txtPassword.value) {
alert("Your password does not match");
return;
}
var txtPhHome = document.getElementById('MainBody_txtPhHome');
var txtPhWork = document.getElementById('MainBody_txtPhWork');
var txtPhMobile = document.getElementById('MainBody_txtPhMobile');
if ((!IsInteger(txtPhHome.value)) && (!IsInteger(txtPhWork.value)) && (!IsInteger(txtPhMobile.value)))
{
alert('You must enter at least one phone number.');
return;
}
if (IsInteger(txtPhHome.value))
{
if (txtPhHome.value < 1000000 || txtPhHome.value > 9999999) {
alert('The home phone number you entered is invalid. It must be between 100-0000 and 999-9999');
return;
}
}
if (IsInteger(txtPhWork.value)) {
if (txtPhWork.value < 1000000 || txtPhWork.value > 9999999) {
alert('The work phone number you entered is invalid. It must be between 100-0000 and 999-9999');
return;
}
}
if (IsInteger(txtPhMobile.value)) {
if (txtPhMobile.value < 0210000000 || txtPhMobile.value > 0299999999) {
alert('The mobile phone number you entered is invalid. It must be between 021-000-0000 and 029-999-9999');
return;
}
}
document.getElementById('form1').submit();
}
</script>
<div>
<table>
<tr><td>First Name:</td><td><asp:TextBox ID="txtFirstName" Width="150" runat="server"></asp:TextBox></td></tr>
<tr><td>last Name:</td><td><asp:TextBox ID="txtLastName" Width="150" runat="server"></asp:TextBox></td></tr>
<tr><td>Username:</td><td><asp:TextBox ID="txtUsername" Width="150" runat="server"></asp:TextBox></td></tr>
<tr><td>Password:</td><td><asp:TextBox ID="txtPassword" Width="150" runat="server"></asp:TextBox></td></tr>
<tr><td>Repeat Password:</td><td><asp:TextBox ID="txtRepeatPassword" Width="150" runat="server"></asp:TextBox></td></tr>
<tr><td>Email:</td><td><asp:TextBox ID="txtEmail" Width="150" runat="server"></asp:TextBox></td></tr>
<tr><td>Home Phone:</td><td><asp:TextBox ID="txtPhHome" Width="150" runat="server"></asp:TextBox></td></tr>
<tr><td>Work Phone:</td><td><asp:TextBox ID="txtPhWork" Width="150" runat="server"></asp:TextBox></td></tr>
<tr><td>Mobile Phone:</td><td><asp:TextBox ID="txtPhMobile" Width="150" runat="server"></asp:TextBox></td></tr>
</table>
<input type="button" class="caption" value="Register" id="btnRegister" name="btnRegister" onclick="btnRegister_OnClick()"/>
<br/>
<asp:Label ID="lblMessage" runat="server" class="message"></asp:Label>
<br/>
<asp:Label ID="lblMessage2" runat="server" class="message"></asp:Label>
<br/>
<asp:Label ID="lblDataId" runat="server"></asp:Label>
</div>
</asp:Content>
感谢任何帮助，为什么会发生这种情况，因为这项任务将于今天晚些时候到期。
答案 0 :(得分：0)
不要在Page Load中传递这些方法，而是将它们写入按钮单击事件中。
protected void btnRegister_Click(object sender, EventArgs e)
{
//Save the registration data into database, 17/8/2014
SaveRegistration();
sendEmail();
}
将注册按钮的html标记更改为
<asp:Button type="button" CssClass="caption" Text="Register" ID="btnRegister" onclick="btnRegister_Click" onClientClick="javascript:btnRegister_OnClick();"/>