有错误的返回类型monogame

我试图制作一个按钮，当我点击它时，它将游戏状态更改为播放，然后调用将播放游戏的所有内容但是我无法获得返回游戏统计数据的方法 .

private GameState Playbutton_Click(object sender, EventArgs e)
    {
        GameState CurrentState = GameState.playing;
        return CurrentState;
    }

我得到的错误是'Game1.GameState Game1.Playbutton_Click（object，EventArgs）'有错误的返回类型

编辑：

在游戏1中：

public class Game1 : Game
{
    GraphicsDeviceManager graphics;
    SpriteBatch spriteBatch;



    enum GameState
    {
        playing,
        menu,
        over
    }

    GameState CurrentState = GameState.playing;

    public Game1()
    {
        graphics = new GraphicsDeviceManager(this);
        Content.RootDirectory = "Content";
    }


    GameState CurrentState = GameState.playing;


              Playbutton = new Button(Content.Load<Texture2D>("button"), Content.Load<SpriteFont>("Font"))
        {
            position = new Vector2(690, 500),
            Text = ("Play")
        };
        Quitbutton = new Button(Content.Load<Texture2D>("button"), Content.Load<SpriteFont>("Font"))
        {
            position = new Vector2(690, 800),
            Text = ("Quit")
        };

        Playbutton.Click += Playbutton_Click;
        Quitbutton.Click += Quitbutton_Click;
        components = new List<Component>()
        {
            Playbutton,
            Quitbutton
        };


              private void Quitbutton_Click(object sender, EventArgs e)
    {
        Exit();
    }

    private void Playbutton_Click(object sender, EventArgs e)
    {
        GameState CurrentState = GameState.playing;
    }

按钮类：

private MouseState _currentMouse;
    private SpriteFont _font;
    private bool _isHovering;
    private MouseState _previousMouse;
    private Texture2D _texture;

    public event EventHandler Click;
    public bool Clicked { get; private set; }
    public Color PenColour { get; set; }
    public Vector2 position { get; set; }
    public Rectangle Rectangle
    {
        get
        {
            return new Rectangle((int)position.X, (int)position.Y, _texture.Width, _texture.Height);
        }
    }
    public string Text { get; set; }
    public Button(Texture2D texture, SpriteFont font)
    {
        _texture = texture;
        _font = font;
        PenColour = Color.Black;
    }
    public override void Draw(GameTime gameTime, SpriteBatch spriteBatch)
    {
        var colour = Color.White;
        if (_isHovering)
            colour = Color.Gray;
        spriteBatch.Draw(_texture, Rectangle, colour);
        if (!string.IsNullOrEmpty(Text))
        {
            var x = (Rectangle.X + (Rectangle.Width / 2)) - (_font.MeasureString(Text).X / 2);
            var y = (Rectangle.Y + (Rectangle.Height / 2)) - (_font.MeasureString(Text).Y / 2);
            spriteBatch.DrawString(_font, Text, new Vector2(x, y), PenColour);
        }
    }
    public override void Update(GameTime gameTime)
    {
        _previousMouse = _currentMouse;
        _currentMouse = Mouse.GetState();
        var mouseRectangle = new Rectangle(_currentMouse.X, _currentMouse.Y, 1, 1);
        _isHovering = false;
        if (mouseRectangle.Intersects(Rectangle))
        {
            _isHovering = true;
            if (_currentMouse.LeftButton == ButtonState.Released &&      _previousMouse.LeftButton == ButtonState.Pressed)
              {
                Click?.Invoke(this, new EventArgs());
            }
        }
    }
}