我想做一个网站，你可以写和自定义邮件，然后发送它。我有一个问题，从文本区域换行不保留。当我用c#发送邮件时，没有换行符(对不起，我的英语不好，不是我的第一语言)。
下面是我的代码:
c#:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Mail;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Web_Mail_Manager
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
string YourUsername = "(Just gonna cover my Email)";
string YourPassword = "(Just gonna cover my password)";
string Destination = DestinationAdress.Value;
string YourMessageSubject = MailSubject.Value;
string YourMessageBody = MailBody.Value;
try
{
using (SmtpClient client = new SmtpClient("smtp.gmail.com", 587))
{
client.EnableSsl = true;
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.UseDefaultCredentials = false;
client.Credentials = new NetworkCredential(YourUsername, YourPassword);
System.Net.Mail.MailMessage msgObj = new System.Net.Mail.MailMessage();
msgObj.To.Add(Destination);
msgObj.From = new MailAddress(YourUsername);
msgObj.Subject = YourMessageSubject;
msgObj.Body = YourMessageBody;
msgObj.IsBodyHtml = true;
client.Send(msgObj);
}
}
catch (Exception)
{
}
}
}
}
ASPX:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Web_Mail_Manager.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link href="https://fonts.googleapis.com/css2?family=Poppins&display=swap" rel="stylesheet" />
<style>
body {
background-color: lightgray;
font-family: 'Poppins', sans-serif;
}
.mailPreview {
background-color: white;
position: absolute;
top: 10%;
left: 50%;
transform: translate(-50%);
width: 45vw;
height: fit-content;
padding: 15px;
}
#MailBody {
white-space: pre-wrap;
}
#MailbodyContent {
white-space: pre-line;
}
#MailBody {
white-space: pre-line;
}
</style>
<script>
function changeTo(val) {
document.getElementById("toMail").innerHTML = val;
}
function changeSubject(val) {
document.getElementById("subject").innerHTML = val;
}
function changeBody(val) {
var text = val;
document.getElementById("MailbodyContent").textContent = text;
document.getElementById("MailbodyContent").innerHTML.replace(/n/g, '<br>n');
}
</script>
</head>
<body>
<form id="form1" runat="server">
<input id="DestinationAdress" oninput="changeTo(value)" runat="server" type="text" placeholder="Recievers E-mail adress" /><br />
<input id="MailSubject" oninput="changeSubject(value)" runat="server" type="text" placeholder="Subject" /><br />
<textarea id="MailBody" oninput="changeBody(value)" runat="server" cols="40" rows="5" placeholder="Content"></textarea><br />
<br />
<div class="mailPreview" id="mailPreview">
<h3>To: <span id="toMail"></span></h3>
<h3>From: (Just gonna cover my email)</h3>
<br />
<h3>Subject: <span id="subject"></span></h3>
<br />
<h3>Content:</h3>
<h4 runat="server" id="MailbodyContent"></h4>
<asp:HiddenField ID="HiddenField1" runat="server" />
</div>
<asp:Button ID="Button1" runat="server" Text="Send mail!" OnClick="Button1_Click" />
</form>
</body>
</html>
任何帮助将非常感谢!
由于您正在发送HTML电子邮件(msgObj.IsBodyHtml = true;)，您需要将换行符替换为<br />标记。
替换行string YourMessageBody = MailBody.Value;
string YourMessageBody = MailBody.Value.Replace(Environment.NewLine, "<br />");