Sort Combobox VBA - vba

Question

I have been thinking how to sort the values in a combobox.
I add items to the ComboBox when I initilize the form because the number of values are constantly increasing on a sheet.
I use the next code to add the items:
With ComboBox1
lastcell = ThisWorkbook.Sheets("1").Range("F1000000").End(xlUp).Row + 1
For i = 2 To lastcell
.AddItem ThisWorkbook.Sheets("1").Cells(i, 6)
Next i
End With
I thought to copy the values that I am going to add on the ComoBox to another sheet and there sort them in the new sheet, it works fine but it doesn't seem to be a smart option, meaning that I create another sheet and then copy the values and sort them instead of sorting them directly.
My question is, anyone knows how to do it directly from the original sheet? I dont know anything of API so, please, only VBA code. I alredy check on MSDN but I can't figure out how to make it work.
Thanks and if more info is needed, please, let me know it.
PS: I cant sort them directly from the original sheet because this Sheet has to be with a static order

Answer 1

You can read the values from the sheet into an array, sort this with code and then add the items.
This code will do this, using a Quicksort:
Private Sub UserForm_Initialize()
Dim varRange() As Variant
Dim lngLastRow As Long
Dim i As Long
lngLastRow = Range("F:F").Find(What:="*", SearchOrder:=xlByRows, SearchDirection:=xlPrevious).Row
varRange = Range("F:F").Resize(lngLastRow).Cells
subQuickSort varRange
Me.ComboBox1.List = varRange
End Sub
Public Sub subQuickSort(var1 As Variant, _
Optional ByVal lngLowStart As Long = -1, _
Optional ByVal lngHighStart As Long = -1)
Dim varPivot As Variant
Dim lngLow As Long
Dim lngHigh As Long
lngLowStart = IIf(lngLowStart = -1, LBound(var1), lngLowStart)
lngHighStart = IIf(lngHighStart = -1, UBound(var1), lngHighStart)
lngLow = lngLowStart
lngHigh = lngHighStart
varPivot = var1((lngLowStart + lngHighStart) \ 2, 1)
While (lngLow <= lngHigh)
While (var1(lngLow, 1) < varPivot And lngLow < lngHighStart)
lngLow = lngLow + 1
Wend
While (varPivot < var1(lngHigh, 1) And lngHigh > lngLowStart)
lngHigh = lngHigh - 1
Wend
If (lngLow <= lngHigh) Then
subSwap var1, lngLow, lngHigh
lngLow = lngLow + 1
lngHigh = lngHigh - 1
End If
Wend
If (lngLowStart < lngHigh) Then
subQuickSort var1, lngLowStart, lngHigh
End If
If (lngLow < lngHighStart) Then
subQuickSort var1, lngLow, lngHighStart
End If
End Sub
Private Sub subSwap(var As Variant, lngItem1 As Long, lngItem2 As Long)
Dim varTemp As Variant
varTemp = var(lngItem1, 1)
var(lngItem1, 1) = var(lngItem2, 1)
var(lngItem2, 1) = varTemp
End Sub

Answer 2

It depends on circumstances, type and structure of data. But i prefer to do it this way:
You could alternatively use an array and a bubble sort algo :)
modify the code a little bit to suit your case
Option Explicit
Sub WITH_COMBOBOX()
Dim i As Long
Dim arr() As String
Dim lastCell As Long
lastCell = 500
ReDim arr(lastCell)
Call FillAndSortArray(arr)
For i = 2 To lastCell
.AddItem arr(i - 2)
Next i
End Sub
Sub FillAndSortArray(ByRef myArray() As String)
Dim i As Long
For i = LBound(myArray) To UBound(myArray)
myArray(i) = CStr(ThisWorkbook.Sheets(1).Range("F" & i + 2).Value)
Next i
Call BubbleSort(myArray)
End Sub
Sub BubbleSort(ByRef myArray() As String)
Dim i As Long, j As Long
Dim Temp As String
For i = LBound(myArray) To UBound(myArray) - 1
For j = i + 1 To UBound(myArray) - 1
If myArray(i) > myArray(j) Then
Temp = myArray(j)
myArray(j) = myArray(i)
myArray(i) = Temp
End If
Next j
Next i
End Sub

Answer 3

Try below code :
Sub GetAction()
Dim rng As Range, lastcell As Long
lastcell = Range("F1000").End(xlUp).Row + 1
Set rng = Range("F1:F" & lastcell) ' assuming to start from F1
If Not rng Is Nothing Then
rng.Sort Range("F1")
ComboBox1.ListFillRange = rng.Address
End If
End Sub

Answer 4

for sorting 123 for number
For Each cell In ThisWorkbook.Sheets("sheet1").Range("list1")
Me.ComboBox1.AddItem cell
Next cell
With Me.ComboBox1
For x = LBound(.list) To UBound(.list)
For y = x To UBound(.list)
If .list(y, 0) + 0 < .list(x, 0) + 0 Then
blah = .list(y, 0)
.list(y, 0) = .list(x, 0)
.list(x, 0) = blah
End If
Next y
Next x
End With
for sorting text abcd
For Each cell In ThisWorkbook.Sheets("sheet1").Range("list1")
Me.ComboBox1.AddItem cell
Next cell
With Me.ComboBox1
For x = LBound(.list) To UBound(.list)
For y = x To UBound(.list)
If .list(y, 0) < .list(x, 0) Then
blah = .list(y, 0)
.list(y, 0) = .list(x, 0)
.list(x, 0) = blah
End If
Next y
Next x
End With