/// <summary>
        /// The update profile_ click.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="e">The e.</param>
        protected void UpdateProfile_Click([NotNull] object sender, [NotNull] EventArgs e)
        {
            if(this.Birthday.Text.IsSet() && !isValidDate(this.Birthday.Text)){
                this.PageContext.AddLoadMessage(this.GetText("PROFILE", "BAD_DATE"), MessageTypes.Warning);
                return;
            }

private bool isValidDate(string dateStr)
        {
            if (this.Get<YafBoardSettings>().UseFarsiCalender)
            {
                try
                {
                   persianDate = new PersianDate(this.Birthday.Text);
                    return true;
                }
                catch
                {
                    return false;
                }
            }
            else
            {
                DateTime dt;
                return DateTime.TryParse(dateStr, out dt);
            }
        }