继承Button类,重绘按钮的形状,生成后可在工具栏拖出按钮
public class CircleButton : Button//继承按钮类 重新生成解决方案就能看见我啦
{
protected override void OnPaint(PaintEventArgs e)
//重新设置控件的形状 protected 保护 override 重新
{
base.OnPaint(e);//递归 每次重新都发生此方法,保证其形状为自定义形状
System.Drawing.Drawing2D.GraphicsPath path = new
System.Drawing.Drawing2D.GraphicsPath();
path.AddEllipse(2, 2, this.Width - 6, this.Height - 6);
Graphics g = e.Graphics;
g.DrawEllipse(new Pen(Color.Black, 2), 2, 2, Width - 6, Height - 6);
Region = new Region(path);
}
}