c#2_8.cs

private void Button_Click(object sender, EventArgs e)
 {
     var button = (Button)sender;
     int column = Grid.GetColumn(button);
     int row = Grid.GetRow(button);
 if (gameActive && fields[column][row] == Player.None)
     {
         var currentSymbol = "";
         if (currentPlayer == Player.Player1)
         {
             currentSymbol = "X";
         }
         else
         {
             currentSymbol = "O";
         }
         button.Content = currentSymbol;
         fields[column][row] = currentPlayer;                    
         if (currentPlayer == Player.Player1)
         {
             currentPlayer = Player.Player2;
             GameInformation.Content = "O ist am Zug";
         }
         else
         {
             currentPlayer = Player.Player1;
             GameInformation.Content = "X ist am Zug";
         }            
     }
 }