public void textBox_Email_Validated(object sender, EventArgs e)
{
var txt = (TextBox)sender;
if (ValidacionDatos.ValidarEmail(txt.Text, errorProvider, txt))
{
_datosObligatorios = false;
}
}
public void textBoxMail_KeyPress(object sender, KeyPressEventArgs e)
{
ValidacionDatos.ValidarEmail(sender, e);
}