内部函数,再改一下
'此函数用于更新主窗口左侧的Treeview控件
Dim TvwCtl As WinForm.TreeView = Args(0) '要更新的Treeview控件
Dim TblName As String = Args(1) '数据来源表
Dim Columns As String = Args(2) '要构建Treeview的字段
Dim ddt As DataTable = args(3)
'If Tables(TblName).Rows.Count = 0 Then Return Nothing
TvwCtl.Form.StopRedraw
TvwCtl.BuildTree(ddt,Columns)
Dim ArrColName() As String = Columns.Split("|")
For i As Integer = 0 To Ubound(ArrColName)
If Tables(TblName).DataTable.DataCols(ArrColName(i)).IsDate Then
For Each Nd As WinForm.TreeNode In TvwCtl.AllNodes
If Nd.Level = i Then
Dim idx As Integer = Nd.Text.IndexOf(" ")
If idx > -1 Then
Nd.Text = Nd.Text.SubString(0,idx)
End If
End If
Next
End If
Next
TvwCtl.Nodes.Insert("显示所有行",0)
TvwCtl.Form.ResumeRedraw