格式化字符串为电子邮件地址

本文关键字：电子邮件地址 字符串 格式化 | 更新日期: 2023-09-27 18:09:00

这个SELECT返回项目所有者的电子邮件地址:

var selectEmailData = "SELECT User.Email FROM Projects INNER JOIN User ON Projects.ProjectOwner = User.UserId WHERE ProjectId=@0";
var dataEmail = db.Query(selectEmailData, ProjectId);
@foreach (var row in dataEmail)
{
    @row.Email
}

但是当我试着这样做的时候:

var mailTo = dataEmail.ToString();

发送电子邮件:

WebMail.Send(
    to: mailTo,
    subject: "Hello there!",
    body: "Your project is ready."
);

我得到了这个:指定的字符串不是电子邮件地址所需的形式

这段代码有什么问题?

格式化字符串为电子邮件地址

我很确定…

var dataEMail = db.Query(…) would return a collection not a string.

所以…

var mailTo = dataEmail.ToString();

将返回类似"System.Collections.Generic......"

我猜你可能想要这样的东西

var selectEmailData = "SELECT User.Email FROM Projects INNER JOIN User  ON Projects.ProjectOwner = User.UserId WHERE ProjectId=@0";
var allEmails = db.Query(selectEmailData, ProjectId);
@foreach (var row in allEmails)
{
  WebMail.Send(
  to: @row.Email,
  subject: "Hello there!",
  body: "Your project is ready."
)

验证?

Regex regex = new Regex(@"^(['w'.'-]+)@(['w'-]+)(('.('w){2,3})+)$"); 
Match match = regex.Match(email); 
if (match.Success)
{
//Send email
}
else
{
//Bad email
}

其他方式:

try
{
MailAdress email = new MailAddress(<enter here string>);
}
catch (FormatException fe)
{
//Bad email
}

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