带下划线的LABEL控件
继承自Label,代码如下：
1 using System.Drawing.Drawing2D; 2 using System.Windows.Forms; 3 using System.Collections.Generic; 4 using System.ComponentModel; 5 using System.Linq; 6 using System.Text; 7 8 namespace CustomControlSample 9 { 10 public class LineLabel:System.Windows.Forms.Label 11 { 12 private Color _lineColor; 13 private float _lineThick; 14 private float[] _DashPattern; 15 private DashStyle _DashStyle; 16 17 public LineLabel() 18 { 19 _lineColor = base.ForeColor; 20 _lineThick = 1f; 21 _DashStyle = DashStyle.Solid; 22 } 23 24 [Browsable(true)] 25 public Color LineColor 26 { 27 get 28 { 29 return _lineColor; 30 } 31 set 32 { 33 _lineColor = value; 34 Invalidate(); 35 } 36 } 37 38 [Browsable(true)] 39 public float LineThick 40 { 41 get 42 { 43 return _lineThick; 44 } 45 set 46 { 47 _lineThick = value; 48 Invalidate(); 49 } 50 } 51 52 [Browsable(true)] 53 public float LinePenMode 54 { 55 get 56 { 57 return _lineThick; 58 } 59 set 60 { 61 _lineThick = value; 62 Invalidate(); 63 } 64 } 65 66 [Browsable(true)] 67 public float[] LineDashPattern 68 { 69 get 70 { 71 return _DashPattern; 72 } 73 set 74 { 75 _DashPattern = value; 76 Invalidate(); 77 } 78 } 79 80 [Browsable(true)] 81 public DashStyle LineDashStyle 82 { 83 get 84 { 85 return _DashStyle; 86 } 87 set 88 { 89 _DashStyle = value; 90 Invalidate(); 91 } 92 } 93 94 protected override void OnPaint(PaintEventArgs e) 95 { 96 base.OnPaint(e); 97 //StringFormat style = new StringFormat(); 98 //e.Graphics.DrawString( 99 // base.Text, 100 // Font, 101 // new SolidBrush(base.ForeColor), 102 // ClientRectangle, style); 103 104 Pen p = new Pen(LineColor, LineThick); 105 p.DashStyle = LineDashStyle; 106 if ((p.DashStyle == DashStyle.DashDot) || (p.DashStyle == DashStyle.DashDotDot)) 107 p.DashPattern = LineDashPattern; 108 e.Graphics.DrawLine(p,2,this.Height-1, this.Width,this.Height-1); 109 }
