“工具提示”如果 ToolStripItems 有下拉项，则被 ToolStripItems 覆盖？

发布于 2024-08-28 03:04:41 字数 788 浏览 12 评论 0原文

在 Windows 窗体中 - 如果 MenuStrip 的下拉项具有工具提示，并且下拉项本身具有工具提示，则工具提示将有大约 50% 的机会显示在 ToolStripItems 下方。

解决方法是什么？

要重现，您可以在 Visual Studio 中创建 MenuStrip，或者仅将以下代码添加到表单中，然后尝试将鼠标悬停在菜单项上以获取工具提示：

        //Make a menu strip
        MenuStrip menu = new MenuStrip();            
        this.Controls.Add(menu);

        //Add category "File"
        ToolStripMenuItem fileItem = new ToolStripMenuItem("File");
        menu.Items.Add(fileItem);

        //Add items
        for (int i = 0; i < 10; i++)
        {
            ToolStripMenuItem item = new ToolStripMenuItem("item");
            item.ToolTipText = "item tooltip";
            item.DropDownItems.Add("sub item");

            fileItem.DropDownItems.Add(item);
        }

我正在使用 .NET 3.5

原文

In Windows Forms - if the dropdown items of a MenuStrip has tooltips and dropdown items themselves the tooltip will have about a 50% chance of showing up below the ToolStripItems.

What is the workaround?

To repro you can create the MenuStrip in Visual Studio or just add the following code to a form and then try to hover your mouse over the menu items to get a tooltip:

        //Make a menu strip
        MenuStrip menu = new MenuStrip();            
        this.Controls.Add(menu);

        //Add category "File"
        ToolStripMenuItem fileItem = new ToolStripMenuItem("File");
        menu.Items.Add(fileItem);

        //Add items
        for (int i = 0; i < 10; i++)
        {
            ToolStripMenuItem item = new ToolStripMenuItem("item");
            item.ToolTipText = "item tooltip";
            item.DropDownItems.Add("sub item");

            fileItem.DropDownItems.Add(item);
        }

I am using .NET 3.5

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梦幻之岛 2024-09-04 03:04:41

试试这个代码

//Make a menu strip
MenuStrip menu = new MenuStrip();
this.Controls.Add(menu);

//Add category "File"
ToolStripMenuItem fileItem = new ToolStripMenuItem("File");
menu.Items.Add(fileItem);

this.toolTip = new ToolTip();
this.toolTip.AutoPopDelay = 0;
this.toolTip.AutomaticDelay = 0;
this.toolTip.UseAnimation = true;

//Add items
for (int i = 0; i < 10; i++)
{
    ToolStripMenuItem item = new ToolStripMenuItem("item");

    //disable the default tool tip of ToolStripMenuItem
    item.AutoToolTip = false;

    //instead, use Tooltip class to show to text when mouse hovers the item
    item.MouseHover += new EventHandler(item_MouseHover);
    item.DropDownItems.Add("sub item");

    fileItem.DropDownItems.Add(item);
}

void item_MouseHover(object sender, EventArgs e)
{
    ToolStripMenuItem mItem = (ToolStripMenuItem)sender;
    toolTip.Show("tool tip", mItem.Owner, 1500);
}

Try this code

//Make a menu strip
MenuStrip menu = new MenuStrip();
this.Controls.Add(menu);

//Add category "File"
ToolStripMenuItem fileItem = new ToolStripMenuItem("File");
menu.Items.Add(fileItem);

this.toolTip = new ToolTip();
this.toolTip.AutoPopDelay = 0;
this.toolTip.AutomaticDelay = 0;
this.toolTip.UseAnimation = true;

//Add items
for (int i = 0; i < 10; i++)
{
    ToolStripMenuItem item = new ToolStripMenuItem("item");

    //disable the default tool tip of ToolStripMenuItem
    item.AutoToolTip = false;

    //instead, use Tooltip class to show to text when mouse hovers the item
    item.MouseHover += new EventHandler(item_MouseHover);
    item.DropDownItems.Add("sub item");

    fileItem.DropDownItems.Add(item);
}

void item_MouseHover(object sender, EventArgs e)
{
    ToolStripMenuItem mItem = (ToolStripMenuItem)sender;
    toolTip.Show("tool tip", mItem.Owner, 1500);
}

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