Using multiple listbox in noncontiguous ranges - vba

Question

I am working with a schedule, that I have imported and formatted into my workbook.
I am wanting this to populate Phase in the upper listbox and then when a phase is selected the sub-task associated with those phases are displayed in the bottom listbox.
I want to use an array but I seem to be having problems when the columns are not next to each other or there are "gaps" with the blank cells.
My first attempt using assigning the Array to the currentregion worked but brought all columns and fields in. Listbox1 should contain (ID, PHASE NAME, DURATION, START DATE, FINISH DATE) List box 2 should when a Phase is selected contain the subtasks if any from the column to the right, listed before the next next Phase name. (ID, SUB-TASK NAME, DURATION, START DATE, FINISH DATE)
(See picture)
I have code but its more me trouble-shooting than an actual semi working script.
Dim shT As Worksheet
Dim schnumrng1 As Range
Dim schnumrng2 As Range
Dim schnumrng3 As Range
Dim schnumrng4 As Range
Dim schnumrng5 As Range
Dim schpersonrng As Range
Dim schphaserng As Range
Dim schlistrng As Range
Dim maxschnum
Dim schstatus
Dim schperson
Dim schlistnum
Dim Ar() As String
Dim i As Long
Dim j As Long
Dim rng As Range
Dim cl As Range
Dim lc
'allowevents = True
''Set Screen parameters
'Application.ScreenUpdating = False
'Application.EnableEvents = False
'
Worksheets("Schedule").Visible = True
ThisWorkbook.Worksheets("Schedule").Activate
'
Set shT = Worksheets("Schedule")
maxschnum = shT.Cells(shT.Rows.Count, "A").End(xlUp).Row
Set schnumrng = Range("B5", "B" & maxschnum)
'Set Ranges for the list box
Set schnumrng1 = Range("A5", "A" & maxschnum)
Set schnumrng2 = Range("B5", "B" & maxschnum)
Set schnumrng3 = Range("D5", "D" & maxschnum)
Set schnumrng4 = Range("E5", "E" & maxschnum)
Set schnumrng5 = Range("F5", "F" & maxschnum)
'This is static and not moving to the next line in my for statement / switched to named ranges and errors
Set rng = schnumrng1, schnumrng2, schnumrng3, schnumrng4, schnumrng5
'Set rng = Range("A5,B5,D5,E5,F5")
i = 1
j = 1
For Each lc In schnumrng
If lc <> vbNullString Then
For Each cl In rng
ReDim Preserve Ar(1, 1 To i)
Ar(j, i) = cl.Value
i = i + 1
Next cl
Else
End If
j = j + 1
Next lc
With ScheduleForm.SchMainTasklt
.ColumnCount = i - 1
.ColumnWidths = "50;150;50;50;50"
.List = Ar
End With
My problem then is two fold, trying to use the dynamic ranges or another tool Index? collection? to populate the 1st list box. 2. How to deal with blanks and noncontiguous columns when data is not separated for organization purposes.

Answer 1

I don't know if I figured out your intentions well.
First, only the data in column b, not empty cells, is extracted from listbox1.
Second, when listbox1 is selected, data related to listbox2 is collected through the selected listbox value.
Module Code
Place this code in the module. This is because global variables must be used.
Public vDB As Variant
Public Dic As Object 'Dictionary
Sub test()
Dim shT As Worksheet
Dim maxschnum As Long
Dim Ar() As String
Dim i As Long
Dim j As Long
Dim vC() As Variant
Dim cnt As Integer, n As Integer
Dim c As Integer
Dim s As String, s2 As String
Worksheets("Schedule").Visible = True
ThisWorkbook.Worksheets("Schedule").Activate
'
Set Dic = CreateObject("Scripting.Dictionary") 'New Scripting.Dictionary
Set shT = Worksheets("Schedule")
maxschnum = shT.Cells(shT.Rows.Count, "A").End(xlUp).Row
With shT
vDB = .Range("a5", .Range("f" & maxschnum))
End With
'vC is data colum A,B,D,E,F
vC = Array(1, 2, 4, 5, 6)
s2 = vDB(2, 2)
For i = 2 To UBound(vDB, 1)
s = vDB(i, 2) 'column B
If s = "" Then
n = n + 1
Else
If Dic.Exists(s) Then
Else
If i > 2 Then
Dic(s2) = Dic(s2) & "," & n
End If
Dic.Add s, i
s2 = s
cnt = cnt + 1
ReDim Preserve Ar(1 To 5, 1 To cnt)
For c = 0 To UBound(vC)
Ar(c + 1, cnt) = vDB(i, vC(c))
Next c
End If
n = 0
End If
Next i
Dic(s2) = Dic(s2) & "," & n
' Records information about the data in a dictionary.
' Dic is "phase neme" is Key, Item is "2,4"
' example for KICkOFF
' dic key is "KICKOFF", Item is "5,4"
' 5 is KICOFF's row number in array vDB
' 4 is the number of blank cells related to kickoff.
With ScheduleForm.SchMainTasklt
.ColumnCount = 5
.ColumnWidths = "50;150;50;60;60"
.BoundColumn = 2
'.List = Ar
.Column = Ar 'In the state that the array has been converted to row column, you can use listbox.column.
End With
End Sub
Form Code
Private Sub UserForm_Initialize()
Call test
End Sub
Private Sub SchMainTasklt_Click()
Dim s As String, sItem As String
Dim arr As Variant, vC As Variant
Dim vR() As Variant
Dim st As Long, ed As Long
Dim iLast As Long, iFirst As Long
Dim i As Long, n As Integer
Dim j As Integer
vC = Array(1, 3, 4, 5, 6) 'data colums A,C,D,E,F
s = SchMainTasklt.Value
'MsgBox s
sItem = Dic(s)
arr = Split(sItem, ",")
st = Val(arr(0))
ed = Val(arr(1))
iFirst = st + 1
iLast = st + ed
If ed = 0 Then
MsgBox "no data!!"
Exit Sub
End If
For i = iFirst To iLast
n = n + 1
ReDim Preserve vR(1 To 5, 1 To n)
For j = 0 To UBound(vC)
vR(j + 1, n) = vDB(i, vC(j))
Next j
Next i
With ListBox2
.ColumnCount = 5
.ColumnWidths = "50;150;50;60;60"
.BoundColumn = 2
.Column = vR
End With
End Sub
Result Image
When you click the "KICKOFF" , Show kickoff related data in listbox2.