是否可以通过 C# (VSTO) 禁用或配置（单元格、范围）上下文菜单。 如果是，我该如何实现它（在文档级 VSTO Excel 应用程序中）
例如，我想禁用上下文菜单中的某些项目（例如复制/粘贴）并添加新项目或用完整的自己的菜单替换标准上下文菜单！
智能标签是 Excel 中上下文菜单的良好替代品吗？
【问题讨论】：
标签： c# .net excel vsto office-interop
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;
using Excel = Microsoft.Office.Interop.Excel;
using Office = Microsoft.Office.Core;
using Microsoft.Office.Tools.Excel;
using System.Diagnostics;
using Microsoft.Office.Interop.Excel;
namespace Excel_Menu
{
public partial class ThisAddIn
{
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
ResetCellMenu(); // reset the cell context menu back to the default
// Call this function is the user right clicks on a cell
this.Application.SheetBeforeRightClick+=new Excel.AppEvents_SheetBeforeRightClickEventHandler(Application_SheetBeforeRightClick);
}
private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
{
}
private Office.CommandBar GetCellContextMenu()
{
return this.Application.CommandBars["Cell"];
}
private void ResetCellMenu()
{
GetCellContextMenu().Reset(); // reset the cell context menu back to the default
}
private void Application_SheetBeforeRightClick(object Sh, Range Target, ref bool Cancel)
{
ResetCellMenu(); // reset the cell context menu back to the default
if (Target.Cells.Count == 1) // sample code: if only a single cell is selected
{
if (Target.Cells[1, 1].Value == "abc") // sample code: if the signle cell contains 'abc'
{
AddExampleMenuItem();
RemoveCutCopyPasteMenuItems();
}
}
}
private void AddExampleMenuItem()
{
Office.MsoControlType menuItem = Office.MsoControlType.msoControlButton;
Office.CommandBarButton exampleMenuItem = (Office.CommandBarButton)GetCellContextMenu().Controls.Add(menuItem, missing, missing, 1, true);
exampleMenuItem.Style = Office.MsoButtonStyle.msoButtonCaption;
exampleMenuItem.Caption = "Example Menu Item";
exampleMenuItem.Click += new Microsoft.Office.Core._CommandBarButtonEvents_ClickEventHandler(exampleMenuItemClick);
}
private void RemoveCutCopyPasteMenuItems()
{
Office.CommandBar contextMenu = GetCellContextMenu();
for (int i = contextMenu.Controls.Count; i > 0; i--)
{
Office.CommandBarControl control = contextMenu.Controls[i];
if (control.Caption == "Cu&t") control.Delete(); // Sample code: remove cut menu item
else if (control.Caption == "&Copy") control.Delete(); // Sample code: remove copy menu item
else if (control.accDescription.Contains("Paste")) control.Delete(); // Sample code: remove any paste menu items
}
}
void exampleMenuItemClick(Microsoft.Office.Core.CommandBarButton Ctrl, ref bool CancelDefault)
{
System.Windows.Forms.MessageBox.Show("Example Menu Item clicked");
}
#region VSTO generated code
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InternalStartup()
{
this.Startup += new System.EventHandler(ThisAddIn_Startup);
this.Shutdown += new System.EventHandler(ThisAddIn_Shutdown);
}
#endregion
}
}
【讨论】：