我正在嘗試讓表單向自己發送電子郵件，但由于某種原因它不起作用，我不知道為什么。當我提交表單時，它會顯示以下堆棧跟蹤：在 System.Net.Mail.SmtpClient.Send(MailMessage message) 在 emailform.index.send_Click(Object sender, EventArgs e) 在 C:\Users\PC\Desktop\Projects\emailform\emailform\index.aspx.cs:line 28有人有想法么？我剛開始學習C# 和 ASP.NET，所以它可能是顯而易見的。這是代碼：<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="index.aspx.cs" Inherits="emailform.index" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title></head><body> <form id="form1" runat="server"> <br /> <br /> <table align="center" width="60%"> <tr> <td>to:</td> <td><asp:TextBox ID="to" runat="server" Text="[email protected]" width="60%" ></asp:TextBox></td> </tr> <tr> <td>from:</td> <td><asp:TextBox ID="from" runat="server" Text="[email protected]" Width="60%"></asp:TextBox></td> </tr> <tr> <td>subject</td> <td><asp:TextBox ID="subject" runat="server" Text="TEST" Width="60%"></asp:TextBox></td> </tr> <tr> <td>body</td> <td><asp:TextBox ID="body" runat="server" Text="this is a test message" Height="30%" Width="60%" TextMode="MultiLine"></asp:TextBox></td> </tr> <tr> <td></td> <td><asp:Button ID="send" onClick="send_Click" runat="server" Text="send" /></td> </tr> <tr> <td></td> <td><asp:Label ID="status" runat="server"></asp:Label></td> </tr> </table> </form></body></html>這是C#：using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Net.Mail;namespace emailform{ public partial class index : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { }
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