System.NullReferenceException

f I just add a simple textbox/richtext box in C# design window and run it, An exception occures- " System.NullReferenceException"

My code frm the code window is as follows-

Code:

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace TestDemo2
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.RichTextBox richTextBox1;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			//Exception shows here- Highlighted after compile
			this.richTextBox1 = new System.Windows.Forms.RichTextBox();

			this.SuspendLayout();
			//
			// richTextBox1
			//
			this.richTextBox1.Location = new System.Drawing.Point(128, 40);
			this.richTextBox1.Name = "richTextBox1";
			this.richTextBox1.TabIndex = 0;
			this.richTextBox1.Text = "richTextBox1";
			//
			// Form1
			//
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(456, 286);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
				this.richTextBox1});
				this.Name = "Form1";
				this.Text = "Form1";
				this.Load += new System.EventHandler(this.Form1_Load);
				this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main()
		{
			Application.Run(new Form1());
		}

		private void Form1_Load(object sender, System.EventArgs e)
		{

		}
	}
}

After I run the same code the following message is shown-

"An unhandled exception of type 'System.NullReferenceException' occurred in system.windows.forms.dll

Additional information: Object reference not set to an instance of an object. "

It highlights the following line of the code-

"this.richTextBox1 = new System.Windows.Forms.RichTextBox();"


IT IS really getting on my nerves.What the hell is this exception about. I didnt write a single code in it. I did it frm design window. THen why do they show such an exception. What else to do to get it right. PLs help me.

 

Brother where the .Net software cant make it out with its own generated code,You r telling me to add my code. If it cant run a simple program made/coded all by itself, there is no use writing my code.

 

One thing is dat I hav two operating systems.One in drive c and another one(XP)is in drive D and I have installed .Net in XP, I mean drive D. But in Xp I installed MS.Net in drive E bcos there was little space in the system drive-D. Is it making anu problem. I even reinstalled .Net and tried again just after adding a richtextbox.It says the same thing-

"An unhandled exception of type 'System.NullReferenceException' occurred in system.windows.forms.dll

Additional information: Object reference not set to an instance of an object. "

See the problem is in the system.windows.forms.dll.
I dont know what it means. Whatever I add makes no problem except for RichTextBox-this is the main problem of every RICH!! object of the world