Once you've created sub-classes for all your form controls (you know, MyTextBox, MyComboBox, etc.), then you need to put your new sub-classes into the IDE's ToolBox so that you can easily drag/drop them onto your design surface. Here's what you do:

First, you have to be in a designer window, not viewing code.
Right-click on the ToolBox, choose "Add/Remove Items" (in VS2005, it's "Choose Items").

When the Customize ToolBox dialog comes up (in VS2005, it's the "Choose Toolbox Items" dialog), click on the "Browse" button. Then browse to the .DLL that contains your base classes.

from a solution provided by Bonnie Berent in Message #1049463

Here's a link to an article that shows you how to do it:
http://www.dotnetspider.com/kb/Article963.aspx

However, since this link's URL has been changed at least once before from what had originally been posted in the UT message, there's no guarantee that they won't change it again. So, let me also post the code example, just in case:

using System;
using System.Data;
using System.IO;

   public class DataTableHelper
   {
      /// 
      /// Can stream DataTable to Browser, directly, you need to set 
      /// 
      /// Response.Clear();
      /// Response.Buffer= true;
      /// Response.ContentType = "application/vnd.ms-excel";
      /// Response.AddHeader("Content-Disposition", "inline;filename=Clientes.xls");
      /// Response.Charset = "";
      /// this.EnableViewState = false
      /// // ACTUAL CODE 
      /// ProduceCSV(dt, Response.Output, true);
      /// 
      public static void ProduceCSV(DataTable dt, System.IO.TextWriter httpStream, bool WriteHeader)
      {
         if (WriteHeader)
         {
            string[] arr = new String[dt.Columns.Count];
            for (int i = 0; i < dt.Columns.Count; i++)
            {
               arr[i] = dt.Columns[i].ColumnName;
               arr[i] = GetWriteableValue(arr[i]);
            }

            httpStream.WriteLine(string.Join(",", arr));
         }

         for (int j = 0; j < dt.Rows.Count; j++)
         {
            string[] dataArr = new String[dt.Columns.Count];
            for (int i = 0; i < dt.Columns.Count; i++)
            {
               object o = dt.Rows[j][i];
               dataArr[i] = GetWriteableValue(o);
            }
            httpStream.WriteLine(string.Join(",", dataArr));
         }
      }

      #region CSV Producer
      public static void ProduceCSV(DataTable dt, System.IO.StreamWriter file, bool WriteHeader)
      {
         if (WriteHeader)
         {
            string[] arr = new String[dt.Columns.Count];
            for (int i = 0; i < dt.Columns.Count; i++)
            {
               arr[i] = dt.Columns[i].ColumnName;
               arr[i] = GetWriteableValue(arr[i]);
            }

            file.WriteLine(string.Join(",", arr));
         }

         for (int j = 0; j < dt.Rows.Count; j++)
         {
            string[] dataArr = new String[dt.Columns.Count];
            for (int i = 0; i < dt.Columns.Count; i++)
            {
               object o = dt.Rows[j][i];
               dataArr[i] = GetWriteableValue(o);
            }
            file.WriteLine(string.Join(",", dataArr));
         }
      }

      public static string GetWriteableValue(object o)
      {
         if (o == null || o == Convert.DBNull)
            return "";
         else if (o.ToString().IndexOf(",") == -1)
            return o.ToString();
         else
            return "\"" + o.ToString() + "\"";

      }
      #endregion
   }

from a solution provided by Kevin McNeish in Message #1074509

 {script language="javascript"
  src="https://secure.company.com/javascript/trustme.js"
  type="text/javascript"}
 {/script}

Instead you should use:

Page.ClientScript.RegisterClientScriptBlock() 
// and 
Page.ClientScript.RegisterClientScriptBlockInclude() //(in 2.0)  
Page.RegisterClientScriptBlock()                     //(in 1.0) 

It's best to isolate that code either into a control or class so that it's reusable but you can also do it in code directly.

from a solution provided by Rick Strahl in Message 1096678

If it's not the secure port Redirect to the same URL with a new port. The easiest way to do that is to use the URI class and change the port.

Rick's Blog post has some related content that describes just this scenario:

http://west-wind.com/weblog/posts/1412.aspx

from a solution provided by Rick Strahl in Message 1096678

private void treeView1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
   TreeNode treenode = this.treeView1.GetNodeAt(e.X, e.Y);
   if (treenode != null)
   {
      if (e.Button == MouseButtons.Right)
      {
         this.PrepareContextMenu(treenode);
      }
   }
}

In 2.0, the ContextMenuStrip has an Opening event which can also be used to prepare the contextmenu before opening.

from a solution provided by Einar Kvandahl in Message #1101230