为什么工具提示不显示? [英] Why is Tooltip not displaying?

问题描述

我在应用程序中添加了工具提示.

I added a Tooltip to my app.

在我希望它显示提示/工具提示的控件(一个DataGridView)中，我向工具提示"属性中添加了修饰语.但是我的语言不显示(准确地说，什么也没有.).

In the control (a DataGridView) where I want it to display the hint/tooltip, I added verbiage to the "Tooltip on " property. But my verbiage does not display (nothing does, to be precise).

为什么?

我在相关按钮上添加了单词，它工作正常.也许DGV本身无法处理工具提示?

I added verbiage to a related button, and it works just fine. Maybe the DGV itself cannot deal with tooltips?

已添加

这里是演示该问题的完整示例

Here is a complete sample that demonstrates the problem

using System;
using System.Drawing;
using System.Windows.Forms;

static class Program
{
    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);

        var form = new Form {
            Controls = {
                new Button { Name = "button", Location = new Point(10, 10) },
                new DataGridView { Name = "dgv", Location = new Point(10, 50) },
            },
        };

        var tooltip = new ToolTip();
        tooltip.SetToolTip(form.Controls["button"], "Button Tooltip");
        tooltip.SetToolTip(form.Controls["dgv"], "DGV Tooltip");

        Application.Run(form);
        GC.KeepAlive(tooltip); // it's cheaper than implementing IContainer on the form for this demo
    }
}

推荐答案

我在这里找到了答案: DataGridViewToolTipText不显示

I found the answer here: DataGridView ToolTipText not showing

private void dgvPlatypus_CellToolTipTextNeeded(object sender,   DataGridViewCellToolTipTextNeededEventArgs e)
{
    e.ToolTipText = "j. cutworm is a punk";
}

这篇关于为什么工具提示不显示?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！