错误1 <method>的重载不匹配委托'System.Windows.Input.KeyEventHandler'

时间:2015-05-05 12:27:18

标签: c# methods visual-studio-2013 overloading

我尝试在整个网站上搜索,但无法真正找到这个问题的答案,我正在尝试使用箭头键使我的椭圆移动,但无论我尝试什么,我都会遇到同样的错误。

另外,当我把它放在XAML中的Canvas代码中时,我得到了这个错误

KeyDown="movement"

错误:

No overload for 'movement' matches delegate 'System.Windows.Input.KeyEventHandler'

代码:

    public MainWindow()
        {
            InitializeComponent();
            x = 10;
            y = 10;
            diameter = 10;
            DrawBall(x, y, diameter);
        }

        private void movement(object sender, System.Windows.Forms.KeyEventArgs key)
        {
            if (key.KeyCode == Keys.Up)
            {
                x -= 20;
            }
            else if (key.KeyCode == Keys.Down)
            {       
                x += 20;
            }
           else if (key.KeyCode == Keys.Left)
            {
                y -= 20;
            }
           else if (key.KeyCode == Keys.Right)
            {
                y += 20;
            }
          DrawBall(x, y, diameter);
        }

             private void DrawBall(double x, double y, double diameter)
        {
            ballCanvas.Children.Clear();
            Ellipse ellipse = new Ellipse();
            ellipse.Stroke = new SolidColorBrush(Colors.Black);
            ellipse.Fill = new SolidColorBrush(Colors.Red);
            ellipse.Width = diameter;
            ellipse.Height = diameter;
            ellipse.Margin = new Thickness(x, y, 0, 0);
            ballCanvas.Children.Add(ellipse);

        }   
    }
}

1 个答案:

答案 0 :(得分:1)

您正在使用Windows窗体中的KeyEventArgs。而是使用:

..., System.Windows.Input.KeyEventArgs key)...