Okno vyvolane prikazom nabidky – .NET – Fórum – Programujte.com

Zdravim
Nespolupracuju mi dva subory vid nizsie. Chcem aby sa mi po kliknuti na menu vo formulari Okno.cs otvoril formular Okenko.cs. Vypisuje mi to chybu v prilohe na obrazku.
Diki za info

//Okno.cs



using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;



namespace DvěOkna

{

    public class Okno : System.Windows.Forms.Form

    {

        private System.Windows.Forms.MainMenu mainMenu1;

        private System.Windows.Forms.MenuItem menuItem1;

        private System.Windows.Forms.MenuItem menuItem2;

        private System.Windows.Forms.MenuItem menuItem3;

        private System.Windows.Forms.MenuItem menuItem4;

        /// <summary>

        /// Required designer variable.

        /// </summary>

        private System.ComponentModel.Container components = null;



        public Okno()

        {

            InitializeComponent();

        }



        protected override void Dispose(bool disposing)

        {

            if (disposing)

            {

                if (components != null)

                {

                    components.Dispose();

                }

            }

            base.Dispose(disposing);

        }



        private void InitializeComponent()

        {

            this.mainMenu1 = new System.Windows.Forms.MainMenu();

            this.menuItem1 = new System.Windows.Forms.MenuItem();

            this.menuItem2 = new System.Windows.Forms.MenuItem();

            this.menuItem3 = new System.Windows.Forms.MenuItem();

            this.menuItem4 = new System.Windows.Forms.MenuItem();

            // 

            // mainMenu1

            // 

            this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

																					  this.menuItem1});

            // 

            // menuItem1

            // 

            this.menuItem1.Index = 0;

            this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

																					  this.menuItem2,

																					  this.menuItem3,

																					  this.menuItem4});

            this.menuItem1.Text = "Soubor";

            // 

            // menuItem2

            // 

            this.menuItem2.Index = 0;

            this.menuItem2.Text = "Nové okno";

            this.menuItem2.Click += new System.EventHandler(this.menuItem2_Click);

            // 

            // menuItem3

            // 

            this.menuItem3.Index = 1;

            this.menuItem3.Text = "-";

            // 

            // menuItem4

            // 

            this.menuItem4.Index = 2;

            this.menuItem4.Text = "Konec";

            this.menuItem4.Click += new System.EventHandler(this.menuItem4_Click);

            // 

            // Okno

            // 

            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

            this.ClientSize = new System.Drawing.Size(292, 181);

            this.Menu = this.mainMenu1;

            this.Name = "Okno";

            this.Text = "Hlavní okno";



        }

        [STAThread]

        static void Main()

        {

            Application.Run(new Okno());

        }



        private void menuItem4_Click(object sender, System.EventArgs e)

        {

            Close();

        }



        private void menuItem2_Click(object sender, System.EventArgs e)

        {

            Okénko špehýrka = new Okénko();

            špehýrka.Show();

        }

    }

}

//Okenko.cs

// Pomocné okno



using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;



namespace DvěOkna

{

    public class Okénko : System.Windows.Forms.Form

    {

        private System.Windows.Forms.Button button1;

        private System.ComponentModel.Container components = null;



        public Okénko()

        {

            InitializeComponent();

        }



        protected override void Dispose(bool disposing)

        {

            if (disposing)

            {

                if (components != null)

                {

                    components.Dispose();

                }

            }

            base.Dispose(disposing);

        }



        private void InitializeComponent()

        {

            this.button1 = new System.Windows.Forms.Button();

            this.SuspendLayout();

            // 

            // button1

            // 

            this.button1.Location = new System.Drawing.Point(96, 64);

            this.button1.Name = "button1";

            this.button1.TabIndex = 0;

            this.button1.Text = "Něco dělej";

            this.button1.Click += new System.EventHandler(this.button1_Click);

            // 

            // Okénko

            // 

            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

            this.ClientSize = new System.Drawing.Size(292, 141);

            this.Controls.Add(this.button1);

            this.Name = "Okénko";

            this.Text = "Okénko";

            this.ResumeLayout(false);



        }



        private void button1_Click(object sender, System.EventArgs e)

        {

            MessageBox.Show(this, "Flákám se", "Nšco dělám", MessageBoxButtons.OK, MessageBoxIcon.Information);

        }

    }

}

Jednou mas

public class Okénko

public class Okenko