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C#自定义控件 - 画线

放肆的smiling 82

前言:

如今姐妹们对“cpanel教程”大体比较珍视,你们都需要知道一些“cpanel教程”的相关知识。那么小编也在网络上汇集了一些有关“cpanel教程””的相关资讯,希望朋友们能喜欢,兄弟们一起来学习一下吧!

前两天发了一个相关的视频,效果不是很好,直接上代码,就不用看那十几分钟的视频啦

public class Line:Panel    {        public enum Direction        {             Vertical,            Horizon        }        private float _line_width = 1;        private Color _line_color = Color.Black;        private Direction _direction = Direction.Horizon;        public Line()        {            this.SetStyle(ControlStyles.UserPaint, true);        }        [Description("设置线宽")]        [Category("自定义")]        public float LineWidth        {            get { return _line_width; }            set            {                _line_width = value <= 0 ? 1 : value;                this.Invalidate();            }        }        [Description("设置线的颜色")]        [Category("自定义")]        public Color LineColor        {            get { return _line_color; }            set            {                this._line_color = value;                this.Invalidate();            }        }        [Description("设置线的方向")]        [Category("自定义")]        public Direction LineDirection        {            get { return _direction; }            set            {                _direction = value;                this.Invalidate();            }        }        protected override void OnPaint(PaintEventArgs e)        {            Rectangle rec = this.ClientRectangle;            Point pStart;            Point pEnd ;            switch (_direction)            {                case Direction.Vertical:                    int x = rec.Width/ 2;                    int xd2 = x;                    pStart = new Point(x, rec.Y);                    pEnd = new Point(x, rec.Height);                    e.Graphics.DrawLine(new Pen(_line_color, _line_width), pStart, pEnd);                    break;                case Direction.Horizon:                    int y = rec.Height / 2;                    int yd2 = y;                    pStart = new Point(rec.X, y);                    pEnd = new Point(rec.Width, y);                    e.Graphics.DrawLine(new Pen(_line_color, _line_width), pStart, pEnd);                    break;                default:                    break;            }        }    }

运行效果图:

主页有那个很长的视频,有兴趣的也可以看下哦(不建议看,太费时间!)

标签: #cpanel教程 #c语言画线代码