vb.net字符串填充 vb包含字符串
VB.NET中怎样拼接字符串好
vb中可以使用+连接字符串,
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也可以使用连接字符串,
建议使用连接字符串,以区别数学运算符+。
VB.net中如何给字符串组赋值?
dim Userlist() as string
redim Userlist(10)
for i=0 to 10
userlist(i) = i
Next
这样就行
vb.net字符串操作
a="@1991@1205@844@3276@1104@747@1069@0.9@4@3@104810571073
"
a=Replace(a,"@",",")
a=Replace(a,"",",")
dim b()
b=split(a,",")
vb.net从数据库读取信息填充treeview做成层次目录怎么做
给你一段我曾经写的代码,主要是生成TreeView的节点!有什么不懂的地方你就提!
Public Sub InitializeTreeView(ByVal strvXL As TreeView, ByVal vrsRecordTwo As DataSet)
Dim treBaseNodeOne As TreeNode
Dim treBaseNodeTwo As TreeNode
Dim strDWDM As String
m_rsRecordTwo = g_clsSybase.SelectSC_PD_SBCSB1()
'查找供电局信息
g_clsSybase.SelectRS_ZZJG_ZZJGDMB(m_rsRecordOne)
'添加根节点
Do While m_rsRecordOne.Read
strDWDM = m_rsRecordOne.GetString(0) '获取单位代码
treBaseNodeOne = New TreeNode
treBaseNodeOne.Text = m_rsRecordOne.GetString(1).Trim() '获取单位名称
treBaseNodeOne.Name = m_rsRecordOne.GetString(1)
treBaseNodeOne.Tag = ""
strvXL.Nodes.Add(treBaseNodeOne)
'添加树结构第二层
Dim drsTwo() As DataRow
drsTwo = m_rsRecordTwo.Tables(0).Select("SSDW='" strDWDM "' and SC__XLBM is null")
For Each dr As DataRow In drsTwo
treBaseNodeTwo = New TreeNode
treBaseNodeTwo.Text = dr.Item("XLMC").ToString.Trim
treBaseNodeTwo.Name = dr.Item("XLMC")
treBaseNodeTwo.Tag = dr.Item("XLBM")
treBaseNodeOne.Nodes.Add(treBaseNodeTwo)
Next
Loop
m_rsRecordOne.Close()
End Sub
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