private void btnSearch_Click(object sender, EventArgs e){if (txtDrawFrom.Text == "" && txtDrawTo.Text == ""){MessageBox.Show("请输入设计卡查询条件", "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);return;}string strSQL = String.Format("exec frmBomMap_List '{0}','{1}'", txtDrawFrom.Text, txtDrawTo.Text);this.treeView1.Nodes.Clear();//先清空this.listView1.Items.Clear();//先清空try{datasource = W1.DS(strSQL, "Sys");TreeNode node = new TreeNode() { Text = "Root", ToolTipText = "Root" };this.treeView1.Nodes.Add(node);node.ImageIndex = 2;node.SelectedImageIndex = 2;C_BomOP.CreateTreeViewRecursive(treeView1.Nodes[0].Nodes, datasource.Tables[0], "Root", "Root", -1);//第一个节点下//treeView1不展开,listView清空数据this.treeView1.ExpandAll();this.listView1.Items.Clear();}catch(Exception ex){// throw new Exception(ex.Message);//  MessageBox.Show( ex.Message, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }}public void CreateTreeViewRecursive(TreeNodeCollection nodes, DataTable dataSourse, string parentId, string topAncestor,int level){string topmodel = "";string filter = string.Format("Ancestor='{0}'and ( Ancestor='Root' or TOPLEVEL='{1}') and BOMLEVEL = {2}", parentId, topAncestor, level);   //  AND ( ProType='03' or ProType='02')//查询子节点DataRow[] drArr = dataSourse.Select(filter);level++; // 需放到外层来。不然并行的一道工序就会导致相加了。以致结果不正确，这里要特别留意一下
            TreeNode node;foreach (DataRow dr in drArr){node = new TreeNode();nodes.Add(node);node.Text = (string)dr["ProNum"];node.ToolTipText = String.Format("{0}\n{1}", (string)dr["TOPLEVEL"], level);topmodel = (string)dr["TOPLEVEL"];                //递归创建子节点CreateTreeViewRecursive(node.Nodes, dataSourse, dr["ProNum"].ToString(),topmodel,level);}}

ALTER PROCEDURE [dbo].[frmBomMap_List]
@sknum1 VARCHAR(50),
@sknum2 VARCHAR(50)    AS
CREATE TABLE #TEMP
(TOPLEVEL VARCHAR(50)  COLLATE Chinese_PRC_BIN,
Ancestor VARCHAR(50) COLLATE Chinese_PRC_BIN,
ProNum VARCHAR(50)  COLLATE Chinese_PRC_BIN,
[SETS] INT,
QTY FLOAT,
BOMLEVEL INT)      SELECT TOPLEVEL=Ancestor,Ancestor='Root',ProNum=Ancestor,Ver INTO #t1  FROM dbo.Bom
WHERE DrawNum between @sknum1 AND @sknum2
AND IsEffect=1 --AND IsOrigin=1   -- 非原型也要取IF (SELECT COUNT(1) FROM #t1) >200
BEGINRAISERROR('数据过多,请缩小设计卡的范围',11,-1)    RETURN
ENDSELECT * INTO #t2 FROM #t1    declare @ancestor varchar(50),@version VARCHAR(5)
while (select count(*) from #t1)>0
BEGIN
select TOP 1 @ancestor=TOPLEVEL,@version=Ver FROM #t1
delete #t1 where TOPLEVEL=@ancestor AND Ver=@version      ;WITH BOMList(TOPLEVEL, Ancestor, ProNum,[SETS], QTY,BOMLEVEL) AS         (        SELECT TOPLEVEL=Ancestor, Ancestor,ProNum,Sets, Qty AS QTY, 0 AS BOMLEVEL    -- Sets*Qty AS QTY    FROM dbo.BomDTL2        WHERE Ancestor=@ancestor AND Ver=@version        UNION ALL        SELECT TOPLEVEL, B2.Ancestor, B2.ProNum, B2.Sets,B2.Qty AS QTY,BOMLEVEL + 1        FROM BomDTL2 B2, BOMList BB        WHERE B2.Ancestor=BB.ProNum       )       INSERT #TEMP      SELECT TOPLEVEL, Ancestor, ProNum,[SETS],QTY,BOMLEVEL         FROM BOMList
END      --delete #TEMP where ProNum in (select Ancestor from #TEMP)     SELECT DISTINCT #TEMP.*,p.ProType FROM #TEMP,dbo.Product p
WHERE #TEMP.ProNum = p.ProNum
UNION ALL  SELECT TOPLEVEL,Ancestor,ProNum,1,1,-1,'02' FROM #t2  -- 02是成品    ORDER BY  TOPLEVEL ASC,BOMLEVEL ASC,ProType DESC,ProNum ASC    DROP TABLE #t1,#t2,#TEMP