在StatusStrip中的ProgressBar上显示文本 [英] Show Text on ProgressBar in StatusStrip

问题描述

我是 Windows编程中的新手.在C#中，我正在使用Visual Studio2017.现在，我遇到了一个问题.问题是，我试图在StatusStrip的ProgressBar中显示一些文本(进度值)，但是找不到合适的工作方式来做到这一点. :-(

I am new in windows programming. In C# I was working with using Visual Studio 2017. Now, Im stuck with a problem. The Problem is that, I am trying to display some text (the progress value) in ProgressBar in the StatusStrip but can't find a proper working way to do that. :-(

有人可以向我提供一些解决此问题的想法或解决方案吗?我将为您感到高兴和感谢！ 您的回答将不胜感激. :-)

Can anyone please provide me some ideas or solution to this problem? I shall be glad and thankful to you ! Your answers will be appreciated greatly. :-)

推荐答案

ToolStripProgressBar组件使用ProgressBar显示进度，而控件不显示文本.为了能够呈现文本以进行控制，您需要自己绘制值.为此，您可以创建一个源自ToolStripProgressBar的自定义项目.然后，您可以使用NativeWindow将自定义代码分配给控件的WM_PAINT消息:

ToolStripProgressBar component uses a ProgressBar to show the progress and the control doesn't show text. To be able to render a text for control, you need to paint the value yourself. To do so, you can create a custom item deriving from ToolStripProgressBar. Then you can use NativeWindow to assign a custom code to WM_PAINT message of the control:

using System;
using System.Windows.Forms;
using System.Windows.Forms.Design;
[ToolStripItemDesignerAvailability(ToolStripItemDesignerAvailability.All)]
public class MyToolStripProgressBar : ToolStripProgressBar
{
    public MyToolStripProgressBar() : base()
    {
        this.Control.HandleCreated += Control_HandleCreated;
    }
    private void Control_HandleCreated(object sender, EventArgs e)
    {
        var s = new ProgressBarHelper((ProgressBar)this.Control);
    }
}
public class ProgressBarHelper : NativeWindow
{
    ProgressBar c;
    public ProgressBarHelper(ProgressBar progressBar)
    {
        c = progressBar;
        this.AssignHandle(c.Handle);
    }
    protected override void WndProc(ref Message m)
    {
        base.WndProc(ref m);
        if (m.Msg == 0xF /*WM_PAINT*/)
        {
            using (var g = c.CreateGraphics())
                TextRenderer.DrawText(g, c.Value.ToString(),
                   c.Font, c.ClientRectangle, c.ForeColor);
        }
    }
}

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