protected void postMessageButton_Click(object sender, EventArgs e)
 {
     if (!string.IsNullOrEmpty(messageTextBox.Text) && messageTextBox.Text != "Eg: Is anyone available for tennis match at 5PM on Friday?")
     {
         using (FlexibleTennisLeagueDataContext dataContext = new FlexibleTennisLeagueDataContext())
         {
             dataContext.InsertMessage(StoredData.User.UserId, StoredData.User.Division, messageTextBox.Text);
         }
         messagesRadGrid.Rebind();
     }
 }