title: Creating a simple Game score manager in Visual Basic?
body: <p>I want to make a scoreboard in visual basic that allows the user to type in a certain number and it adds to the score every time.</p>
  
  <p><a href="http://i.stack.imgur.com/atlRI.png" rel="nofollow">This is the kind of layout I am using</a></p>
  
  <p>There are two teams, when a user enters the number in the text box (white one) it will comeup on the grey textbox above, and it will add every time the user types in a number.</p>
  
  <p>Also, how can I display a warning message when a user enters a invalid data? EG - a letter.</p>