DevExpress Winform：纯代码方式创建PopupMenu

DevExpress版本：18.1

.NET Framework版本：4.0

VS版本：2017

C#语言版本：7.3

public partial class YourClass : XtraForm
{
    private readonly PopupMenu PopupMenu = new PopupMenu();
    private readonly BarManager BarManager = new BarManager();

    public YourClass()
    {
        // constructor
    }

    private void InitContextMenuGridControlDbTables()
    {
        this.PopupMenu.BeginInit();
        this.BarManager.BeginInit();

        var menuRefresh = new BarButtonItem
        {
            Manager = this.BarManager,
            Caption = "Refresh",
            Name = "Refresh",
            Id = 0
        };
        // menuRefresh.ItemClick += this.WhenClickRefresh;

        var menuSynchronize = new BarButtonItem
        {
            Manager = this.BarManager,
            Caption = "Synchronize",
            Name = "Synchronize",
            Id = 1
        };
        // menuSynchronize.ItemClick += this.WhenClickSynchronize;

        var menuPurge = new BarButtonItem
        {
            Manager = this.BarManager,
            Caption = "Purge",
            Name = "Purge",
            Id = 2
        };
        // menuPurge.ItemClick += this.WhenClickPurge;

        var menuRemove = new BarButtonItem
        {
            Manager = this.BarManager,
            Caption = "Remove",
            Name = "Remove",
            Id = 3
        };
        // menuRemove.ItemClick += this.WhenClickRemove;

        this.PopupMenu.LinksPersistInfo.AddRange(new[]
        {
            new LinkPersistInfo(menuRefresh),
            new LinkPersistInfo(menuSynchronize, true), // 第二个参数true，表示在Synchronize和Refresh菜单之间添加分割线
            new LinkPersistInfo(menuPurge, true), // 第二个参数true，表示在Purge和Synchronize菜单之间添加分割线
            new LinkPersistInfo(menuRemove)
        });
        this.PopupMenu.Manager = this.BarManager;

        this.BarManager.Form = this.gridControlDbTables; // BarManager.Form属性表示菜单所属的控件
        this.BarManager.Items.AddRange(new BarItem[]
        {
            menuRefresh,
            menuSynchronize,
            menuPurge,
            menuRemove
        });

        this.PopupMenu.EndInit();
        this.BarManager.EndInit();

        // 绑定BarManager.Form控件的MouseUp事件以显示菜单
        this.gridControlDbTables.MouseUp += (sender, e) =>
        {
            if (MouseButtons.Right == e.Button)
                this.PopupMenu.ShowPopup(Control.MousePosition);
        };
    }
}

 更简洁的方式：删除13~14行，62~71行的代码。

问题：

1，如何在菜单显示之前做其他事情

（1）绑定PopupMenu.BeforePopup事件。

（2）绑定BarManager.Form所指定的控件（即，菜单绑定的控件）的PopupMenuShowing事件。

2，如何隐藏个别菜单项

以问题1中第（1）部分所述举例：

this.PopupMenu.BeforePopup += (sender, e) =>
{
    if (yourCondition)
    {
        this.PopupMenu.LinksPersistInfo[0].Item.Visibility = BarItemVisibility.Never;
        this.PopupMenu.LinksPersistInfo[1].Item.Visibility = BarItemVisibility.Never;
    }
    else
　　　　this.PopupMenu.LinksPersistInfo[2].Item.Visibility = BarItemVisibility.Never;
};