Hello,

I write a little UserControl
-------

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Windows.Forms;

namespace UserControlPoint
{
public class ChartPoint : System.Windows.Forms.UserControl
{
       private ContainerControl _containerControl = null;

       public ContainerControl ContainerControl
       {
           get { return _containerControl; }
           set { _containerControl = value; }
       }

       public ChartPoint()
       {
           InitializeComponent();
       }

       private void InitializeComponent()
       {
           this.SuspendLayout();
           //
           // ChartPoint
           //
           this.BackColor = System.Drawing.Color.Transparent;
           this.Name = "ChartPoint";
           this.Size = new System.Drawing.Size(20, 20);
           //this.Paint += new
System.Windows.Forms.PaintEventHandler(this.ChartPoint_Paint);
           //this.MouseLeave += new
System.EventHandler(this.ChartPoint_MouseLeave);
           //this.MouseMove += new
System.Windows.Forms.MouseEventHandler(this.ChartPoint_MouseMove);

           this.ResumeLayout(false);

       }
}
}
-------

and when I want to use it in second UserControl

-------
...
for (int i = 0; i < mypointsdataarray.Length; i++)
{
                   convertedpoints[i] =
TransformPoint(mypointsdataarray[i]);
                   /*
                   Panel panel = new Panel();
                   panel.BackColor = Color.Red;
                   panel.Size = new Size(4, 4);
                   panel.Location = new Point(convertedpoints[i].X -
2, convertedpoints[i].Y - 2);
                   this.Controls.Add(panel);
                   */
                   ChartPoint chartpoint = new ChartPoint();
                   chartpoint.Location = new
Point(convertedpoints[i].X - 10, convertedpoints[i].Y - 10);
                   this.Controls.Add(chartpoint);
}
...
-------

I put second UserControl on default Form Application, with buttons.
And when I click one of this buttons actions described in loop above
is running. BUT ... this code give me a "Error creating window
handle." message, so I try to do this without my ChartPoint
UserControl and I test default Panel Component and every thing works
fine. So What is wrong with my ChartPoint UserControl, because I don't
know what I'm doing wrong.

Best Regards
Przemek