动态创建Menu c# ado.net

想动态创建menustrip，下面的代码在form里有用，但是在copy到cs里面却报了4个错， this.Hide();， this.SuspendLayout();， this.Controls.Add(this.menuStrip1);， this.ResumeLayout(false);

``` private void 工序录入ToolStripMenuItem_Click(object sender, EventArgs e)
{
工序资料维护 frmGXLR = new 工序资料维护();
frmGXLR.Show();
this.Hide();

    }

    private void 录入ToolStripMenuItem1_Click(object sender, EventArgs e)
    {
        中小修管理录入 frmZXXGLLR = new 中小修管理录入();
        frmZXXGLLR.Show();
        this.Hide();
    }
    //动态创建menuSctrip
    private void addMenuSctrip()
    {
             this.menuStrip1 = new System.Windows.Forms.MenuStrip();
        this.文件ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
                        this.menuStrip1.SuspendLayout();
        this.SuspendLayout();
        // 
        // menuStrip1
        // 
        this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
        this.文件ToolStripMenuItem,
        this.menuStrip1.Location = new System.Drawing.Point(0, 0);
        this.menuStrip1.Name = "menuStrip1";
        this.menuStrip1.Size = new System.Drawing.Size(284, 25);
        this.menuStrip1.TabIndex = 40;
        this.menuStrip1.Text = "menuStrip1";
        // 
                            // 
        // 文件ToolStripMenuItem
        // 
        this.文件ToolStripMenuItem.Name = "文件ToolStripMenuItem";
        this.文件ToolStripMenuItem.Size = new System.Drawing.Size(44, 21);
        this.文件ToolStripMenuItem.Text = "文件"; 
                    this.Controls.Add(this.menuStrip1);
        this.menuStrip1.ResumeLayout(false);
        this.menuStrip1.PerformLayout();
        this.ResumeLayout(false);
            }
             private System.Windows.Forms.MenuStrip menuStrip1;
    private System.Windows.Forms.ToolStripMenuItem 文件ToolStripMenuItem;

放在cs中，给你的每个函数增加一个参数，比如
private void addMenuSctrip()
->
private void addMenuSctrip(你的窗体类型 frm)
然后，所有用到
this.Hide();
等地方，都把this换成frm
frm.Hide();

ToolStripMenuItem menuItem=new ToolStripMenuItem();
ToolStripMenuItem menuSubItem = new ToolStripMenuItem("");
menuSubItem.Name =""
menuSubItem.Click += new EventHandler(menuSubItem_Click);
menuItem.DropDownItems.Add(menuSubItem);