请教GraphicsPath的绘制问题!

Question

以下代码为什么在Winform上什么都画不出来呢?  
好像有点奇怪  
protected  override  void  OnPaint(PaintEventArgs  e)  
{  
           Point[]  pts  =  new  Point[6];  
           pts[0]  =  new  Point(234,49);    
           pts[5]  =  new  Point(234,171);    
           pts[1]  =  new  Point(294,7);    
           pts[4]  =  new  Point(294,213);    
           pts[2]  =  new  Point(414,49);    
           pts[3]  =  new  Point(414,171);  
           byte[]  types  =  new  byte[6];  
           types[0]  =  (byte)PathPointType.Start;  
           types[5]  =  (byte)PathPointType.CloseSubpath;  
           for(int  i=1;i<5;i++)  
           {  
                 types[i]  =  (byte)PathPointType.Line;  
           }  
           GraphicsPath  shape  =  new  GraphicsPath(pts,types);  
           Region  rg  =  new  Region(shape);  
           e.Graphics.FillRegion(Brushes.White,rg);  
           e.Graphics.DrawPath(Pens.White,shape);  
}

Answer 1

估计是你在构造Path时出异常了。