【 tulaoshi.com - ASP.NET 】
                             
                             同样是重载OnPaint 方法,但是方法应该是比较巧妙的!而且不用担心标题是不是有显示,也不用去计算坐标,很方便的说!
 protected override void OnPaint(PaintEventArgs e)
 {
 base.OnPaint(e);
 if(this.DataSource!=null)
 { 
 if( this.VisibleRowCount == 0 )return;
 Rectangle currRct;
 int iRowCount = this.VisibleRowCount;
 string sText = "";
 int nowY = 0;
 for( int i = 0 ; i < iRowCount ; i++ )
 { 
 currRct = (Rectangle)this.GetCellBounds( i, 0 );
 nowY = currRct.Y + 2;
 sText = string.Format( " {0}", i+1 ); 
 e.Graphics.DrawString( sText, this.Font, new SolidBrush(Color.Black), 10, nowY ); 
 }
 }
 }