示例代码:

public partial class Sheet4     {

Office.CommandBar menuBar;

Office.CommandBarPopup menuCustom;

Office.CommandBarPopup menu1;

Office.CommandBarButton menu2;

Office.CommandBarButton menu1_1;

Office.CommandBarButton menu1_2;

Office.CommandBarButton menu1_3;

Office.CommandBar bar1;

Office.CommandBarPopup cmenu;

Office.CommandBarButton cmenu_1;

Office.CommandBarButton cmenu_2;

private void Sheet4_Startup(object sender, System.EventArgs e)

{

/普通的菜单///

//添加一级菜单

menuBar = this.Application.CommandBars.ActiveMenuBar;

menuCustom =

(Office.CommandBarPopup)menuBar.Controls.Add(

Office.MsoControlType.msoControlPopup,

missing, missing, missing, true);

menuCustom.Caption = “自定义菜单”;

//添加二级菜单

menu1 =

(Office.CommandBarPopup)menuCustom.Controls.Add(

Office.MsoControlType.msoControlPopup,

missing, missing, missing, true);

menu1.Caption = “菜单风格(&S)”;

//添加同级的菜单

menu2 =

(Office.CommandBarButton)menuCustom.Controls.Add(

Office.MsoControlType.msoControlButton,

missing, missing, missing, true);

menu2.Caption = “自定义按钮类型的菜单(&S)”;

//添加事件要设置Tag属性

menu2.Tag = “custom”;

//添加的事件处理函数

menu2.Click += new Microsoft.Office.Core._CommandBarButtonEvents_ClickEventHandler(menu2_Click);

//添加三级菜单

menu1_1 =

(Office.CommandBarButton)menu1.Controls.Add(

Office.MsoControlType.msoControlButton,

missing, missing, missing, true);

menu1_1.Caption = “Up”;

menu1_1.Tag = “MyUp”;

menu1_1.State = Office.MsoButtonState.msoButtonUp;

//添加事件

menu1_1.Click += new Microsoft.Office.Core._CommandBarButtonEvents_ClickEventHandler(menu1_1_Click);

menu1_2 =

(Office.CommandBarButton)menu1.Controls.Add(

Office.MsoControlType.msoControlButton,

missing, missing, missing, true);

menu1_2.Caption = “Down”;

menu1_2.Tag = “MyDown”;

menu1_2.State = Office.MsoButtonState.msoButtonDown;

//

menu1_2.Click += new Microsoft.Office.Core._CommandBarButtonEvents_ClickEventHandler(menu1_1_Click);

menu1_3 =

(Office.CommandBarButton)menu1.Controls.Add(

Office.MsoControlType.msoControlButton,

missing, missing, missing, true);

menu1_3.Caption = “Mixed”;

menu1_3.State = Office.MsoButtonState.msoButtonMixed;

//上下文菜单/

bar1 = Application.CommandBars["Cell"];

if (bar1 == null)

return;

//添加一级菜单

cmenu =

(Office.CommandBarPopup)bar1.Controls.Add(

Office.MsoControlType.msoControlPopup,

missing, missing, missing, true);

cmenu.Caption = “自定义菜单”;

//添加二级菜单

cmenu_1 =

(Office.CommandBarButton)cmenu.Controls.Add(

Office.MsoControlType.msoControlButton,

missing, missing, missing, true);

cmenu_1.Caption = “Up”;

cmenu_1.State = Office.MsoButtonState.msoButtonUp;

//添加二级菜单

cmenu_2 =

(Office.CommandBarButton)cmenu.Controls.Add(

Office.MsoControlType.msoControlButton,

missing, missing, missing, true);

cmenu_2.Caption = “Down”;

cmenu_2.State = Office.MsoButtonState.msoButtonDown;

}

void menu1_1_Click(Microsoft.Office.Core.CommandBarButton Ctrl, ref bool CancelDefault)

{

//throw new NotImplementedException();

if (Ctrl.Caption == “Up”)

{

　　　　　　Ctrl.State = Office.MsoButtonState.msoButtonDown;

Ctrl.Caption = “Down”;

}

else

{

Ctrl.State = Office.MsoButtonState.msoButtonUp;

Ctrl.Caption = “Up”;

}

}

void menu2_Click(Microsoft.Office.Core.CommandBarButton Ctrl, ref bool CancelDefault)

{

//throw new NotImplementedException();

MessageBox.Show(”这是一个自定义菜单项”);

}

private void Sheet4_Shutdown(object sender, System.EventArgs e)         {         }

#region VSTO Designer generated code

/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InternalStartup()

{

this.Startup += new System.EventHandler(Sheet4_Startup);

this.Shutdown += new System.EventHandler(Sheet4_Shutdown);

}

#endregion