简易Win进度条绘制-优快云博客

本文链接：https://blog.youkuaiyun.com/jimboy/article/details/1471410

本文介绍了一个使用C#编写的简单Windows进度条实现方法。通过自定义绘图和线程延时来模拟任务进度更新的过程，并实时显示进度百分比。

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自己写的一个简易win下的进度条：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

using System.Threading;

namespace GraphicsTest
{
public delegate double HandlerColor(double x,double y);

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            DrawGo();

base.OnPaint(e);
}

        private void DrawGo()
        {
            Graphics dc = this.CreateGraphics();

            Brush RedBrush = new SolidBrush(Color.Red);

            Pen BluePen = new Pen(Color.Blue, 1);

Rectangle rec = new Rectangle(20, 80, 250, 30);
dc.DrawRectangle(BluePen, rec);

HandlerColor gg = new HandlerColor(GetPercent);

            int i;
            for (i = 0; i <= rec.Width; i = i+10)
            {
                double res = Handlering(gg, (double)i, rec.Width);
                this.Text = "进度为" + res*100+"%";

dc.FillRectangle(RedBrush,rec.X,rec.Y,rec.Width*((float)res),rec.Height);
Thread.Sleep(500);

}
}

        private static double Handlering(HandlerColor action, double x, double y)
        {
            double result = action(x, y);

return result;
}

        private double GetPercent(double x,double y)
        {
            double value;
            value = x / y;
            return value;
        }
    }
}