How to make a CC field of email in winform with complete email validation

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C#

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 like-01@gmail.com,name0@gmail.com..means as CC field present in our gmail by which we can send email to many people).
            
        }

Posted 7-Sep-12 1:33am

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Updated 7-Sep-12 1:45am

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Vani Kulkarni 7-Sep-12 7:38am

PLease elaborate. Your question is unclear.

StackQ 7-Sep-12 7:43am

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 like-01@gmail.com,name0@gmail.com..means as CC field present in our gmail by which we can send email to many people).

[no name] 7-Sep-12 7:47am

use a regular expression to validate the email

StackQ 7-Sep-12 7:51am

ya i used it but showing error if i m using 120ram@gmail.com(means if i m starting my email id with numeric then showing error,but it's not right,in practical email id exists,who starts with numeric.)so what will be solution of this problem..any idea?so plz

StackQ 7-Sep-12 7:52am

and one problem exist-that is i can't use multiple email address

StackQ 7-Sep-12 7:52am

i want both solution through one program

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Aarti Meswania · Answer 1 · 2012-09-07T02:04:00

use regex function like below

C#

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);
    if (rex.Success == false)
    {
        //message ERROR
    }
}

Happy Coding!
:)