除了鼠标事件之外，您还可以通过处理所有者菜单的KeyUp事件来添加键盘按键部分，以获取所选项并在状态栏标签中显示描述。

public YourForm()
{
    InitializeComponent();

    menuStrip1.ShowItemToolTips = false;
    menuStrip1.KeyUp += OnToolStripKeyUp;

    foreach (var item in GetAllToolStripItems(menuStrip1.Items))
    {
        item.AutoToolTip = false;
        item.MouseEnter += OnToolStripItemMouseEnter;
        item.MouseLeave += OnToolStripItemMouseLeave;

        if (item.GetCurrentParent() is ToolStrip dm)
        {
            dm.ShowItemToolTips = false;
            dm.KeyUp -= OnToolStripKeyUp;
            dm.KeyUp += OnToolStripKeyUp;
        }
    }
}

private void OnToolStripItemMouseEnter(object sender, EventArgs e)
{
    sbrLabel.Text = (sender as ToolStripItem).ToolTipText;
}

private void OnToolStripItemMouseLeave(object sender, EventArgs e)
{
    sbrLabel.Text = "Ready";
}

private void OnToolStripKeyUp(object sender, KeyEventArgs e)
{
    var s = sender as ToolStrip;
    var selItem = s.Items.OfType<ToolStripMenuItem>().FirstOrDefault(x => x.Selected);

    sbrLabel.Text = selItem?.ToolTipText;
}

private IEnumerable<ToolStripItem> GetAllToolStripItems(ToolStripItemCollection tsic)
{
    foreach (var tsi in tsic.Cast<ToolStripItem>())
    {
        yield return tsi;

        if (tsi is ToolStripDropDownItem tsddi && tsddi.HasDropDown)
            foreach (var ddi in GetAllToolStripItems(tsddi.DropDownItems))
                yield return ddi;
    }
}

在@dr.null的帮助下，我把这个程序运行起来了，这是我的代码版本。

private void InitializeMenuStatus(ToolStrip toolStrip)
{
    toolStrip.ShowItemToolTips = false;
    toolStrip.KeyUp += ToolStrip_KeyUp;
    foreach (ToolStripItem toolStripItem in toolStrip.Items)
    {
        toolStripItem.AutoToolTip = false;
        toolStripItem.MouseEnter += ToolStripItem_MouseEnter;
        toolStripItem.MouseLeave += ToolStripItem_MouseLeave;
        if (toolStripItem is ToolStripDropDownItem dropDownItem)
            InitializeMenuStatus(dropDownItem.DropDown);
    }
}

private ToolStripItem? SelectedMenuItem = null;

private void SetSelectedMenuItem(ToolStripItem? item)
{
    if (!ReferenceEquals(item, SelectedMenuItem))
    {
        SelectedMenuItem = item;
        lblStatus.Text = item?.ToolTipText ?? string.Empty;
    }
}

private void ToolStripItem_MouseEnter(object? sender, EventArgs e)
{
    if (sender is ToolStripMenuItem menuItem && menuItem.Selected)
        SetSelectedMenuItem(menuItem);
}

private void ToolStripItem_MouseLeave(object? sender, EventArgs e)
{
    SetSelectedMenuItem(null);
}

private void ToolStrip_KeyUp(object? sender, KeyEventArgs e)
{
    if (sender is ToolStripDropDownMenu dropDownMenu)
    {
        ToolStripMenuItem? menuItem = dropDownMenu.Items.OfType<ToolStripMenuItem>()
            .Where(m => m.Selected)
            .FirstOrDefault();
        SetSelectedMenuItem(menuItem);
    }
}

为什么Selected事件从来没有被添加到菜单项中，我不知道。我有suggested that it be added。如果你同意，请去显示你的支持，该请求。

• 如果有人感兴趣的话，我花了一些时间来微调这段代码，最终制作了一个免费组件，现在作为NuGet包发布。