C#

using System;
using System.Drawing;
using System.Windows.Forms;

public class Test : Form
{
  public static void Main()
  {
    Application.Run(new Test());
  }

  public Test()
  {
    ListView lv = new ListView();
    Controls.Add(lv);
    lv.Dock = DockStyle.Fill;
    lv.View = View.Details;

    foreach (string s in new string[] {"Code", "Project", "Is", "Awesome"})
    {
//    ColumnHeader header = new ColumnHeader();
//    header.Text = s;
//    header.Width = -2;
//    lv.Columns.Add(header);
      lv.Columns.Add(s, -2, HorizontalAlignment.Left);
    }
  }
}

for(int x=0;x<<dSet.Tables["Documents"].Columns.Count;x++)<br />
			{<br />
				ColumnHeader head = new ColumnHeader();<br />
				//head.Text=dSet.Tables["Documents"].Columns[x].ToString();<br />
				head.Text=DateTime.Now.ToString();<br />
				head.Width=-2;<br />
				head.TextAlign=HorizontalAlignment.Center;<br />
				lvResults.Columns.Add(head);<br />
			}

this.lvResults.AllowColumnReorder = true;
this.lvResults.ContextMenu = this.cmResults;
this.lvResults.Dock = System.Windows.Forms.DockStyle.Fill;
this.lvResults.FullRowSelect = true;
this.lvResults.GridLines = true;
this.lvResults.Location = new System.Drawing.Point(0, 0);
this.lvResults.MultiSelect = false;
this.lvResults.Name = "lvResults";
this.lvResults.Size = new System.Drawing.Size(536, 342);
this.lvResults.TabIndex = 0;
this.lvResults.View = System.Windows.Forms.View.Details;
this.lvResults.SelectedIndexChanged += new System.EventHandler(this.lvResults_SelectedIndexChanged);

public class MyMenuItem : MenuItem
{
  private Type panelType;
  public MyMenuItem() : this(null, null) {}
  public MyMenuItem(string text) : this(text, null) {}
  public MyMenuItem(string text, Type panelType) : base(text)
  {
    this.panelType = panelType;
  }
  public Type PanelType
  {
    get { return this.panelType; }
    set { this.panelType = value; }
  }
}

private void menu_Click(object sender, EventArgs e)
{
  MyMenuItem menu = sender as MyMenuItem;
  if (menu != null)
  {
    if (menu.PanelType != null)
    {
      // If you derived from Panel, cast to the base class here
      // (or even simply Control).
      Panel p = Activator.CreateInstance(menu.PanelType) as Panel;
      if (p != null)
      {
        p.Dock = DockStyle.Fill;
        leftContainer.Controls.RemoveAt(0);
        leftContainer.Controls.Add(p);
      }
    }
  }
}

<br />
[Designer(typeof(System.Windows.Forms.Design.DocumentDesigner),typeof(System.ComponentModel.Design.IRootDesigner))]<br />
public class A : System.Windows.Forms.Panel<br />
{<br />
	....<br />
}<br />
...<br />
public yourpanel : A<br />
{<br />
	....<br />
}<br />