C# winform 实现自定义控件 |
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C# winform 实现自定义控件
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简介： 圆盘进度条，按照百分比加载，可调节圆环颜色和扇形填充色。 属性总览：
M_LineColor：线颜色。 M_RgColor：扇形进度颜色。 M_Rate：进度百分比。最小0，最大100。 代码： using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Drawing.Drawing2D; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace UserDefineUI.MyDefineUI.ProgressBar { public partial class ProgressBarUser_Pie : UserControl { #region 属性 #region 线框颜色 private Color lineColor = Color.Black; public Color M_LineColor { get { return lineColor; } set { lineColor = value; } } #endregion #region 进度颜色 private Color pgColor = Color.Gray; public Color M_PgColor { get { return pgColor; } set { pgColor = value; } } #endregion #region 进度百分比 private float rate = 0; public float M_Rate { get { return rate/3.6f; } set { if(value > 100) { rate = 360; } else if(rate < 0) { rate = 0; } else { rate = value * 3.6f; } Invalidate(); } } #endregion #endregion public ProgressBarUser_Pie() { InitializeComponent(); } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); e.Graphics.SmoothingMode = SmoothingMode.HighQuality; Graphics graphics = e.Graphics; int w = Width; int h = Height; Point center = new Point(w / 2, h / 2); int r = Width/2; using (Pen pen = new Pen(lineColor)) { pen.Width = 2; graphics.DrawEllipse(pen, (center.X - r), (center.Y - r), 2*r-2, 2*r-2); graphics.FillPie(new SolidBrush(pgColor), (float)(center.X - r), (float)(center .Y- r), 2 * r-2, 2 * r-2, 0, rate); graphics.DrawPie(pen, w / 2 - r, h / 2-r, 2 * r - 2, 2 * r -2 , 0 , rate); } } } }其他代码： public partial class Form1 : Form { Timer time; public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { time = new Timer(); time.Enabled = true; time.Interval = 100; time.Tick += TimerMainFormTick; Task task = new Task(() => { time.Start(); }); task.Start(); } private void TimerMainFormTick(object sender, EventArgs e) { if (progressBarUser_Pie1.M_Rate == 100) { time.Stop(); } progressBarUser_Pie1.M_Rate += 1; } } |
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