protected void gvEmail_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            SqlDataAccess sql = new SqlDataAccess();
            int           Id  = Convert.ToInt32(gvEmail.Rows[e.RowIndex].Cells[0].Text);

            sql.EmailDelete(Id);

            List <Email> Emails = sql.EmailByKontaktId(Convert.ToInt32(gvVraboteni.SelectedRow.Cells[5].Text));

            gvEmail.DataSource = Emails;
            gvEmail.DataBind();
        }