// ###################################### MyForm.cs ########################################## 
using System.Windows.Forms;
 
public class MyForm : Form { 
    [System.STAThread]
    static void Main() {
        Application.Run(new MyForm());
    } // ==================================================================== 
    public MyForm() {
        this.Controls.Add(MainMenuStrip = new MenuStrip());
        MainMenuStrip.Location = new System.Drawing.Point(0, 0);
        MainMenuStrip.Size = new System.Drawing.Size(800, 24);
        MainMenuStrip.TabIndex = 0;
        ToolStripMenuItem column1=MainMenuStrip.addItem("AAA");
        column1.addItem("AAA123", (o,e)=>{ MessageBox.Show("AAA123 がクリックされました"); }); 
        column1.addItem("AAA345", (o,e)=>{ MessageBox.Show("AAA345 がクリックされました"); }); 
        ToolStripMenuItem column2=MainMenuStrip.addItem("BBB");
        column2.addItem("BBB567", (o,e)=>{ MessageBox.Show("BBB567 がクリックされました"); }); 
        column2.addItem("BBB789", (o,e)=>{ MessageBox.Show("BBB789 がクリックされました"); });  
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(800, 450);
        this.Text = "Form1";
    } // ======================================================================= 
    protected override void Dispose(bool disposing) { 
        base.Dispose(disposing);
    } // =======================================================================
} // ################################## MyForm.cs end #########################################