Dim trv As WinForm.TreeView = e.Form.Controls("TreeView1")
trv.BuildTree("国内物流", "年份|月份")
trv.Nodes.Insert("显示所有行",0)
Dim y As Integer = Date.Today.Year
Dim m As Integer = Date.Today.Month
Dim dt1 As New Date(y, m, 1)
Dim dt2 As New Date(y, m, Date.DaysInMonth(y, m)) '获取本月的最后一天
Dim Filter As String
Filter = "统计日期 >= #" & dt1 & "# And 统计日期 <= #" & dt2 & "# and 业务类型='天津水运'"
Tables("水运跟踪_Table1").filter = Filter
Dim y1 As Integer = Date.Today.Year
Dim m1 As Integer = Date.Today.Month
Dim dt3 As New Date(y1, m1, 1)
Dim dt4 As New Date(y1, m1, Date.DaysInMonth(y1, m1)) '获取本月的最后一天
Dim Filter1 As String
Filter1 = "统计日期 >= #" & dt3 & "# And 统计日期 <= #" & dt4 & "# and 业务类型='荆州水运'"
Tables("水运跟踪_Table2").filter = Filter1
Dim Filter As String
Dim dr As DataRow = e.Node.DataRow '获取生成此节点的行
If e.Node.Text <> "显示所有行" Then
Select Case e.Node.Level
Case 0
Filter = "[年份] = '" & dr("年份") & "'"
Case 1
Filter = "[年份] = '" & dr("年份") & "' And [月份] = '" & dr("月份") & "'"
End Select
End If
Tables("国内物流").Filter = Filter