using System;
using System.Drawing;
using System.Windows.Forms;
class SplitTwoProportional: Form
{
Panel panel2;
float fProportion = 0.5f;
public static void Main()
{
Application.Run(new SplitTwoProportional());
}
public SplitTwoProportional()
{
Text = "";
Panel panel1 = new Panel();
panel1.Parent = this;
panel1.Dock = DockStyle.Fill;
panel1.BackColor = Color.Red;
panel1.Resize += new EventHandler(PanelOnResize);
panel1.Paint += new PaintEventHandler(PanelOnPaint);
Splitter split = new Splitter();
split.Parent = this;
split.Dock = DockStyle.Left;
split.SplitterMoving += new SplitterEventHandler(SplitterOnMoving);
panel2 = new Panel();
panel2.Parent = this;
panel2.Dock = DockStyle.Left;
panel2.BackColor = Color.Lime;
panel2.Resize += new EventHandler(PanelOnResize);
panel2.Paint += new PaintEventHandler(PanelOnPaint);
OnResize(EventArgs.Empty);
}
protected override void OnResize(EventArgs ea)
{
base.OnResize(ea);
panel2.Width = (int) (fProportion * ClientSize.Width);
}
void SplitterOnMoving(object obj, SplitterEventArgs sea)
{
fProportion = (float) sea.SplitX / ClientSize.Width;
}
void PanelOnResize(object obj, EventArgs ea)
{
((Panel) obj).Invalidate();
}
void PanelOnPaint(object obj, PaintEventArgs pea)
{
Panel panel = (Panel) obj;
Graphics grfx = pea.Graphics;
grfx.DrawEllipse(Pens.Black, 0, 0,
panel.Width - 1, panel.Height - 1);
}
}