Question

       foreach (GridViewRow row in GridView1.Rows)         
       {           
        var chk = row.FindControl("myCheckBox") as CheckBox;
        if (chk.Checked)
        {
        var email = row.FindControl("LabelEmail") as Label;
        txtEmails.Text += (string.Join(",", email.Text));
        }

I’m extracting the email from the grid view and suppose to put the email accordingly with a comma separating them. I tried using the string.join method however it’s not appearing in the textbox at all. I tried not using string.join but the comma will be added beside every email. How do I separate the email properly?

Example : [e-mail], [e-mail], [e-mail]

Answer 1

Instead of:

txtEmails.Text += (string.Join(",", email.Text));

Try this:

txtEmails.Text += email.Text + ", ";

Edit:

Because it adds a comma to the the last email, you can do something like this to prevent that:

int counter = 0;
// The counter variable must be global
foreach (GridViewRow row in GridView1.Rows)         
{           
    var chk = row.FindControl("myCheckBox") as CheckBox;
    if (chk.Checked)
    {
        counter++;
        var email = row.FindControl("LabelEmail") as Label;
        if (counter <= 1)
        txtEmails.Text += email.Text;
        else
        txtEmails.Text += ", " + email.Text;
    }
}

Hope this helps!