我现在要画一个矩形框或者圆，并且可以像word中那样选中，并且还可以拖动放大、缩小、旋转，请问高手这种问题在c#中是如何实现的？

将要画的图形写成各种控件,向一个容器内动态添加,并可修改它们的属性
/// <summary>
    /// 椭圆
    /// </summary>
    public partial class OvalShape : UserControl
    {
        public OvalShape()
        {
            SetStyle(ControlStyles.SupportsTransparentBackColor | ControlStyles.ResizeRedraw, true);
            SetStyle(ControlStyles.Selectable, false);

            InitializeComponent();
        }
        [UserBrowerAble(), Browsable(true), Description("文本"), Category("椭圆框属性")]
        public string text
        {
            get
            {
                return this.Text;
            }
            set
            {
                this.Text = value;
            }
        }

        [UserBrowerAble(), Browsable(true), Description("控件位置"), Category("椭圆框属性")]
        public Point location
        {
            get
            {
                return this.Location;
            }
            set
            {
                this.Location = value;
            }
        }
        [UserBrowerAble(), Browsable(true), Description("控件大小"), Category("椭圆框属性")]
        public Size size
        {
            get
            {
                return this.Size;
            }
            set
            {
                this.Size = value;
            }
        }
        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            
            e.Graphics.DrawEllipse(new Pen(this.ForeColor, 1F),0,0,this.Width-2,this.Height-2);
        }
    }


[ 本帖最后由 xydddaxia 于 2011-11-25 17:56 编辑 ]

非常感谢！
忘说了一点，就是您这个是在web上用的吧，我现在要求的是在窗体环境下用的，这个也可以吗？

usercontrl在winform也能用