阿杰

 public class Curve2D:DrawingChart    {        #region 私有成员        private Graphics objGraphics;//Graphics 类提供将对象绘制到显示设备的方法        private Bitmap objBitmap;//位图对象        private float fltWidth = 480;//图像宽度        private float fltHeight = 248;//图像高度       

先创建一个静态类，用以实现扩展方法Sort。 public static class MySort { public static void Sort(this DataGridView dgv, Comparison comparison) { dgv.Sort(new RowCompare(comparison)); } public class RowCompare : IComparer

失去焦点后保持选中行高亮： public class ListViewEx : ListView { public ListViewEx() { GotFocus += new EventHandler(listView1_GotFocus); LostFocus += new EventHandler(