Rotate Panel in WinForm

How can i rotate (90 degrees) a panel control? i know it is very simple in WPF but i 开发者_如何学运维can't use it. Do you know such a way for WinForm panel control? Thanks you all!

You would have to override the OnPaint, then manually paint all the controls on the panel using GDI. I have never done a rotate, but I have done some custom repaints for things like dropdowns. You will need to write custom OnPaints for each control type on the panel.

So more on this as I just tried it my self... I dont think you can custom paint most of the common controls. WPF is a different animal, and was designed to support this type of thing. When these controls paint, they do so under the covers and there is nothing you can do. I was able to paint and rotate the panel, but I was not able to do other controls like a Check Box.

    public class RotatePanel : Panel, IRotate
    {

        public RotatePanel() : base()
        {
            Angle = 0;
        }


        protected override void OnPaint(PaintEventArgs e)
        {
            using (Graphics g = this.CreateGraphics())
            {
                foreach (IRotate control in this.Controls)
                {
                    control.Angle = Angle;
                }
                g.RotateTransform(Angle);
                g.DrawRectangle(new System.Drawing.Pen(new SolidBrush(Color.Black), 2f), 4f, 4f, 10f, 10f);
                g.DrawRectangle(new System.Drawing.Pen(new SolidBrush(Color.Azure), 2f), 14f, 14f, 30f, 30f);
                g.Flush();
            }
            base.OnPaint(e);
        }

        protected override void OnPaintBackground(PaintEventArgs e)
        {
            base.OnPaintBackground(e);
        }

        public float Angle
        {
            get;
            set;
        }
    }

    public interface IRotate
    {
        float Angle { get; set; }
    }

   public class RotateCheckBox : CheckBox, IRotate
    {
        public float Angle { get; set; }
        public RotateCheckBox():base()
        {
            Angle = 0;
        }


        protected override void OnPaint(PaintEventArgs pevent)
        {
            pevent.Graphics.RotateTransform(this.Angle);
            pevent.Graphics.Flush();
            base.OnPaint(pevent);
        }
    }