如何使用完整的电子邮件验证在winform中制作电子邮件的抄送字段 [英] How to make a CC field of email in winform with complete email validation

问题描述

private void txtEmailCC_Validating(object sender, CancelEventArgs e)
        {
           //in my form their is a field of cc(where we can add multiple email address),so how can we validate this field.if user will enter wrong email address then show -enter correct email address(it should validate email addresses [e-mail],[e-mail]..means as CC field present in our gmail by which we can send email to many people).
            
        }

推荐答案

使用如下所示的正则表达式函数

use regex function like below

string[] aryMailId = txtcc.text.split(",");
for (i=0;i<arraylist.length;i++)>
{
    string Inputstr=aryMailId[i];
    Match rex = Regex.Match(Strings.Trim(InputStr),"^([0-9a-zA-Z]([-.\\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\\w]*[0-9a-zA-Z]\\.)+[a-zA-Z]{2,3})

"，RegexOptions.IgnoreCase)； 如果(rex.Success == false ) { // 消息错误 } }

", RegexOptions.IgnoreCase); if (rex.Success == false) { //message ERROR } }

祝您编码愉快！
:)

Happy Coding!
:)

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