c＃如何从至少两个级别的基础子菜单中转到上下文menustrip

发布于 2025-02-01 18:37:48 字数 287 浏览 1 评论 0 原文

如何从其基础子菜单中转到ContextMenustrip，它是工具stripdropdownmenu的工具速率，它是该contextMenustrip的toolstripmenuitem的下拉？

问题在于工具条流式曼努犬类，在该类中找不到属性，请参阅上级对象，例如其cassived toolstripmenuitem.its parent，容器属性和getContainerControl（）方法all return null。

我的目的是在单击任何基础菜单项时都知道ContextMenustrip的SourceControl。

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尐偏执 2025-02-08 18:37:48

您可以使用 onalyItem 属性获取 toolstripitem ：

private void toolStripComboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    var comboBox = sender as ToolStripComboBox;
    var twoLevelParent = comboBox.OwnerItem.OwnerItem;
}

You can use OwnerItem property to get the ToolStripItem:

private void toolStripComboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    var comboBox = sender as ToolStripComboBox;
    var twoLevelParent = comboBox.OwnerItem.OwnerItem;
}

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‘画卷フ 2025-02-08 18:37:48

您需要向后循环才能获得第一个 asloreTem 给定 toolsstripitem 的属性（或 sunived ofer noreflow noreferrer“> suret oferived 类） toolstrip （可以是 toolstrip ， menustrip ， statusstrip ，或 condect> contextmenustrip 控制）通过 toolstripitem.outher 属性。

考虑以下扩展方法：

public static class ToolStripExtensions
{
    public static ToolStrip GetMainToolStrip(this ToolStripItem tsi)
    {
        if (tsi == null) return null;
        if (tsi.OwnerItem == null) return tsi.Owner;

        var oi = tsi.OwnerItem;

        while (oi.OwnerItem != null) oi = oi.OwnerItem;

        return oi.Owner;
    }

    public static ToolStrip GetMainToolStrip(this ToolStrip ts)
    {
        ToolStrip res = ts;

        var m = ts as ToolStripDropDownMenu;

        if (m?.OwnerItem != null)
            res = GetMainToolStrip(m.OwnerItem);

        return res;
    }
}

以下是一个示例，该示例显示了如何获得 contextMenustrip.sourcecontrol 在 itemClicked 事件：事件：

private void cmnu_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
    if (e.ClickedItem.GetMainToolStrip() is ContextMenuStrip cmnu)
        Console.WriteLine(cmnu.SourceControl.Name);
}

You need a backward loop to get the first OwnerItem property of a given ToolStripItem (or one of the derived classes) in a branch then you can get the main ToolStrip (which can be a ToolStrip, MenuStrip, StatusStrip, or ContextMenuStrip control) through the ToolStripItem.Owner property.

Consider the following extension methods:

public static class ToolStripExtensions
{
    public static ToolStrip GetMainToolStrip(this ToolStripItem tsi)
    {
        if (tsi == null) return null;
        if (tsi.OwnerItem == null) return tsi.Owner;

        var oi = tsi.OwnerItem;

        while (oi.OwnerItem != null) oi = oi.OwnerItem;

        return oi.Owner;
    }

    public static ToolStrip GetMainToolStrip(this ToolStrip ts)
    {
        ToolStrip res = ts;

        var m = ts as ToolStripDropDownMenu;

        if (m?.OwnerItem != null)
            res = GetMainToolStrip(m.OwnerItem);

        return res;
    }
}

Here's an example that shows how to get the ContextMenuStrip.SourceControl in the ItemClicked event:

private void cmnu_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
    if (e.ClickedItem.GetMainToolStrip() is ContextMenuStrip cmnu)
        Console.WriteLine(cmnu.SourceControl.Name);
}

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