专家坐堂-查询按钮代码求助？Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

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--  专家坐堂  (http://www.foxtable.com/bbs/list.asp?boardid=2)
----  查询按钮代码求助？  (http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&id=78502)

--  作者：lisheng7177
--  发布时间：2015/12/10 13:06:00
--  查询按钮代码求助？

DataTables("鉴定上报表").DataRows.Clear
For Each jdgz As String In dt.GetValues("鉴定工种")
    Dim dr As DataRow = DataTables("鉴定上报表").AddNew
    dr("鉴定工种") = jdgz
    dt = DataTables("报名登记表")
    dr("鉴定考核人数_初级工_2") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'初级工\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("鉴定考核人数_中级工_3") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'中级工\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("鉴定考核人数_高级工_4") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级工\' And 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("鉴定考核人数_技师_5") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'技师\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("鉴定考核人数_高级技师_6") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级技师\' And 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dt = DataTables("证书编号表")
    dr("取得证书人数_初级工_8") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'初级工\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("取得证书人数_中级工_9") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'中级工\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("取得证书人数_高级工_10") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级工\' And 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("取得证书人数_技师_11") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'技师\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("取得证书人数_高级技师_12") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级技师\' And 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )

Next

DataTables("鉴定上报表").DataRows.Clear
For Each dm As String In dt.GetValues("代码")
    Dim dr As DataRow = DataTables("鉴定上报表").AddNew
dt = DataTables("报名登记表")
    dr("鉴定考核人数_初级工_2") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'初级工\' and 代码 = \'" & dr("代码") & "\' and " & filter )
    dr("鉴定考核人数_中级工_3") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'中级工\' and 代码 = \'" & dr("代码") & "\' and " & filter )
    dr("鉴定考核人数_高级工_4") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级工\' And 代码 = \'" & dr("代码") & "\' and " & filter )
    dr("鉴定考核人数_技师_5") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'技师\' and 代码 = \'" & dr("代码") & "\' and " & filter )
    dr("鉴定考核人数_高级技师_6") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级技师\' And 代码 = \'" & dr("代码") & "\' and " & filter )
    dr("代码") = dm
    dt = DataTables("证书编号表")
    dr("取得证书人数_初级工_8") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'初级工\' and 代码 = \'" & dr("代码") & "\' and " & filter )
    dr("取得证书人数_中级工_9") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'中级工\' and 代码 = \'" & dr("代码") & "\' and " & filter )
    dr("取得证书人数_高级工_10") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级工\' And 代码 = \'" & dr("代码") & "\' and " & filter )
    dr("取得证书人数_技师_11") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'技师\' and 代码 = \'" & dr("代码") & "\' and " & filter )
    dr("取得证书人数_高级技师_12") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级技师\' And 代码 = \'" & dr("代码") & "\' and " & filter )

Next

上述代码的结果：“代码”列有数据，但“鉴定工种”列没有数据，为空，这是什么原因？

--  作者：大红袍
--  发布时间：2015/12/10 14:32:00
--

去掉这句代码

DataTables("鉴定上报表").DataRows.Clear

这句代码的意思是删除所有的行数据啊

--  作者：lisheng7177
--  发布时间：2015/12/10 14:50:00
--

去掉后出新问题：比如有100个工种，前100行“鉴定工种”列有内容，“代码”列为空；后100行“鉴定工种”列为空，“代码”列有内容；

我想要的结果是：这100行“鉴定工种”列和“代码”列同时有内容，且和“工种目录表”中的“鉴定工种表”列和“代码”对应

--  作者：lisheng7177
--  发布时间：2015/12/10 14:56:00
--
这个“鉴定上报表”的作用是：查询某个时间段内的各鉴定工种的各等级的报考人数和取证人数，同时对应的代码也相应查出

--  作者：大红袍
--  发布时间：2015/12/10 14:57:00
--

DataTables("鉴定上报表").DataRows.Clear
For Each ary() As String In dt.GetValues("鉴定工种|代码")
    Dim dr As DataRow = DataTables("鉴定上报表").AddNew
    dr("鉴定工种") = ary(0)
    dr("代码") = ary(1)
    dt = DataTables("报名登记表")
    dr("鉴定考核人数_初级工_2") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'初级工\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("鉴定考核人数_中级工_3") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'中级工\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("鉴定考核人数_高级工_4") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级工\' And 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("鉴定考核人数_技师_5") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'技师\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("鉴定考核人数_高级技师_6") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级技师\' And 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dt = DataTables("证书编号表")
    dr("取得证书人数_初级工_8") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'初级工\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("取得证书人数_中级工_9") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'中级工\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("取得证书人数_高级工_10") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级工\' And 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("取得证书人数_技师_11") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'技师\' and 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
    dr("取得证书人数_高级技师_12") = dt.Compute("Count(身份证号码)", "鉴定等级 = \'高级技师\' And 鉴定工种 = \'" & dr("鉴定工种") & "\' and " & filter )
Next

--  作者：lisheng7177
--  发布时间：2015/12/10 15:01:00
--
多谢版主！现在搞定了！