以下是一段窗口加载语句
Dim tv As WinForm.TreeView
tv =e.Form.Controls("TreeView1")
tv.BuildTree("vw_stocktree", "a0|a1|a2|a3|a4|a5")
Dim ndname As String '节点名称
Dim stockfnumber As String '仓库代码
Dim dt As DataTable = DataTables("vw_stock") '仓库表
Dim dr As DataRow '数据行
Dim a As String
For Each nd As WinForm.TreeNode In tv.AllNodes
ndname=nd.text
If ndname="仓库" Then
nd.Ic
Else
stockfnumber = ndname.SubString(1, ndname.IndexOf("(")-1 ) '取仓库代码出来
a="fnumber= '"& stockfnumber & "' And fdetail=True"
dr = dt.Find(a) '看仓库代码在表里是否有最明细的记录
'a=dr("fnumber")
If dr IsNot Nothing Then
nd.Ic '如果有则一种图标
Else
nd.Ic ' 否则另一种图标
End If
End If
Next
大家帮我看一下这段代码,我的目录树总不执行 nd.Ic '如果有则一种图标
这一段,是我的dr没有记录吗?
我的查找语句那样写对吗?