自定义控件 panel 描边 及加属性

        //边框线的宽度
        const int LineWidth = 1;
        //边框线的颜色
        Color RGB = Color.FromArgb(126, 127, 133);

 

ControlPaint.DrawBorder(e.Graphics,
                this.icPanel.ClientRectangle,
                RGB,
                //left                                
               LineWidth,
                ButtonBorderStyle.Solid,
                RGB,
                //top                                
               LineWidth,
                ButtonBorderStyle.Solid,
                RGB,
                //right                                
               LineWidth,
                ButtonBorderStyle.Solid,
                RGB,
                //bottom                                
               LineWidth,
                ButtonBorderStyle.Solid);

核心方法如上

 

 

在自定义控件 panel 中加入这个方法 和属性

(1)枚举值用来表示哪几条需要被画

    public enum BorderLineStyle
    {   None=0,
        Left = 1,
        Top = 2,
        Right = 4,
        Bottom = 8,
        All = ~0

    }

(2)加入到panel 的属性中   使得panel 可以    直接在属性栏中添加

        private BorderLineStyle _outline = 0;

        [Category("易迅")]
        [Description("获得或设置一个值,指示加边框线的位置")]
        public BorderLineStyle Outline
        {
            get { return _outline; }
            set
            {
                _outline = value;
            }
        }

 

(3)加入panel 的方法

private readonly int  lineWidth = 1;
        private readonly Color RGB = Color.FromArgb(126, 127, 133);
        /// <summary>
        /// 画边框线
        /// </summary>
        /// <param name="e"></param>
        private void PaintOutline(PaintEventArgs e)
        {
          ControlPaint.DrawBorder(e.Graphics,
          this.ClientRectangle,
          RGB,
              //left 
          (_outline & BorderLineStyle.Left) == BorderLineStyle.Left ? lineWidth : 0,
          ButtonBorderStyle.Solid,
          RGB,
              //top                                
          (_outline & BorderLineStyle.Top) == BorderLineStyle.Top ? lineWidth : 0,
          ButtonBorderStyle.Solid,
          RGB,
              //right                                
          (_outline & BorderLineStyle.Right) == BorderLineStyle.Right ? lineWidth : 0,
          ButtonBorderStyle.Solid,
          RGB,
              //bottom                                
          (_outline & BorderLineStyle.Bottom) == BorderLineStyle.Bottom ? lineWidth : 0,
          ButtonBorderStyle.Solid);
        }

 

(4)

在panel 类中

加入

        protected override void OnPaint(PaintEventArgs e)
        {
            PaintOutline(e);
            base.OnPaint(e);
        }

让panel 在加载时 使用这个方法

posted @ 2013-01-21 21:16  王若伊_恩赐解脱  阅读(455)  评论(0编辑  收藏  举报