private void gridButtonRightClicked(object sender, MouseButtonEventArgs e)
{
MineButton button = (MineButton)sender;
game.flag(button.getRow(), button.getColumn());
this.renderBoard();
}
private void gridButtonClicked(object sender, EventArgs e)
{
MineButton button = (MineButton)sender;
List <List <Cell> > cells = game.getCells();
game.touch(button.getRow(), button.getColumn());
this.renderBoard();
}