Windows Forms

import java.awt.*;

public class jframef extends java.awt.Frame {
    
    /** Creates new form jframef */
    public jframef() {
        initComponents();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents

        addComponentListener(new java.awt.event.ComponentAdapter() {
            public void componentResized(java.awt.event.ComponentEvent evt) {
                formComponentResized(evt);
            }
        });
        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent evt) {
                exitForm(evt);
            }
            public void windowOpened(java.awt.event.WindowEvent evt) {
                formWindowOpened(evt);
            }
        });

        pack();
    }//GEN-END:initComponents

    private void formWindowOpened(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_formWindowOpened
        // Add your handling code here:
        this.setLayout(null);
        this.setSize(400,400);

//        for(int n=0; n<800; n++) {this.add( new Button() );}
        for(int n=0; n<800; n++) {this.add( new tgC() );}
    }//GEN-LAST:event_formWindowOpened

    private void formComponentResized(java.awt.event.ComponentEvent evt) {//GEN-FIRST:event_formComponentResized
        int n=0;
        int width = this.getBounds().width/41;
        int height = this.getBounds().height/21;
        
        for(int x=4; x< this.getBounds().width-width; x+=width) {
            for (int y=24; y<this.getBounds().height-height; y+=height) {
                if (n<this.getComponentCount())
                    this.getComponent(n++).setBounds(x, y, width, height);
            }
        }
        System.out.println("DONE");
    }//GEN-LAST:event_formComponentResized
    /** Exit the Application */
    private void exitForm(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_exitForm
        System.exit(0);
    }//GEN-LAST:event_exitForm
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        new jframef().show();
    }
    // Variables declaration - do not modify//GEN-BEGIN:variables
    // End of variables declaration//GEN-END:variables
}

// Custom component
class tgC extends java.awt.Component {
    public void paint(Graphics g){
        g.drawRect(1, 1, getBounds().width-2, getBounds().height-2);
    }
}

string value = "Yellow";
Color c = Color.FromKnownColor((KnownColor)Enum.Parse(typeof(KnownColor), value));

//the code:
string type = "Temporary.MyType";
string value = "1,2,4";
// use the Reflection
MyType create = (MyType)Type.GetType(type).GetConstructor(new Type[] { typeof(string) })
	.Invoke(new object[] { value });
// the class:
namespace Temporary
{
	public class MyType  // sample class
	{
		int[] data;
		public MyType(string str)
		{
			string[] numbers = str.Split(',');
			data = new int[numbers.Length];
			for (int i = 0; i < data.Length; i++) {
				data[i] = int.Parse(numbers[i]);
			}
		}
		public int[] Data
		{
			get { return data; }
		}
	}
}

MrBean wrote:

I can set a designer attribute for the entire user control which causes the entire user control to be a container

<br />
Public Class MyUserControl1<br />
<br />
End Class<br />

<br />
< System.ComponentModel.Designer("System.Windows.Forms.Design.ParentControlDesigner, System.Design", GetType(IDesigner)) > _<br />
Public Class MyUserControl1<br />
<br />
End Class<br />