UltraWebGrid动态生成多表头

//多表头设置处理
            foreach (UltraGridColumn col in PlanMonthGrid.DisplayLayout.Bands[0].Columns)
            {
                col.Header.Style.HorizontalAlign = HorizontalAlign.Center; //设置为居中
                col.Header.RowLayoutColumnInfo.OriginY = 1; //纵向起始点,0为第一行,1为第二行,依次类推        
            }
            int startX = 3,orgIndex = 1;
            foreach (DataRow row in state.OrgData.BizData.Rows)
            {
                Infragistics.WebUI.UltraWebGrid.ColumnHeader ch = new Infragistics.WebUI.UltraWebGrid.ColumnHeader(true); //创建一个列头对象        
                ch.Caption = row["OrgName"]+"";   //列头文本标题        
                ch.RowLayoutColumnInfo.OriginX = startX * orgIndex;         //横向起始点,0为第一列,1为第二列,依次类推        
                ch.RowLayoutColumnInfo.OriginY = 0;         //枞向起始点,0为第一行,1为第二行,依次类推        
                ch.RowLayoutColumnInfo.SpanX = 3;           //设置横向跨度     
                ch.Style.HorizontalAlign = HorizontalAlign.Center;
                PlanMonthGrid.DisplayLayout.HeaderStyleDefault.Height = Unit.Pixel(20);
                PlanMonthGrid.DisplayLayout.Bands[0].HeaderLayout.Add(ch);   //增加到列头集合中  
                orgIndex++;
            }
            //把非多表头的列,进行跨行        
            foreach (Infragistics.WebUI.UltraWebGrid.UltraGridColumn c in PlanMonthGrid.DisplayLayout.Bands[0].Columns)        
            {
                if (c.Key == "PH" || c.Key == "ZJH" || c.Key == "CE")   //c.Key 非多表头列的key值            
                {                
                    c.Header.RowLayoutColumnInfo.OriginY = 0;   //从第一行开始                
                    c.Header.RowLayoutColumnInfo.SpanY = 2;   //跨2行            
                }        
            }