Related
I am writing a VBA code that goes through a defined matrix size and filling cells randomly within its limits.
I got the code here from a user on stackoverflow, but after testing it I realized that it does not fit for avoiding duplicate filling, and for instance when filling 5 cells, I could only see 4 cells filled, meaning that the random filling worked on a previously filled cell.
This is the code I'm working with:
Dim lRandom As Long
Dim sCells As String
Dim sRandom As String
Dim rMolecules As Range
Dim i As Integer, j As Integer
Dim lArea As Long
lArea = 400 '20x20
'Populate string of cells that make up the container so they can be chosen at random
For i = 1 To 20
For j = 1 To 20
sCells = sCells & "|" & Cells(i, j).Address
Next j
Next i
sCells = sCells & "|"
'Color the molecules at random
For i = 1 To WorksheetFunction.Min(5, lArea)
Randomize
lRandom = Int(Rnd() * 400) + 1
sRandom = Split(sCells, "|")(lRandom)
Select Case (i = 1)
Case True: Set rMolecules = Range(sRandom)
Case Else: Set rMolecules = Union(rMolecules, Range(Split(sCells, "|")(lRandom)))
End Select
sCells = Replace(sCells, "|" & sRandom & "|", "|")
lArea = lArea - 1
Next i
rMolecules.Interior.ColorIndex = 5
Using this same exact code which works perfectly, WHAT can I insert and WHERE do I do that so that the code would check if a cell is previously already filled with a string or a color?
I feel as though this code I'm looking for should be right before
rMolecules.Interior.ColorIndex = 5
But I'm not sure what to type.
EDIT
From the comments I realized that I should be more specific.
I am trying to randomly fill cells with the blue color (.ColorIndex = 5), but what I need to check first is if the randomizing hadn't marked a cell twice, so that for instance in this case, if I want to mark 5 different cells, it marks only 4 of them because of a duplicate and thus fills only 4 cells with the blue color. I need to avoid that and make it choose another cell to mark/fill.
I'd appreciate your help.
Keep the cells you use in a Collection and remove them as you fill the random cells:
Sub FillRandomCells(targetRange As Range, numberOfCells As Long)
' populate collection of unique cells
Dim c As Range
Dim targetCells As New Collection
' make sure arguments make sense
If numberOfCells > targetRange.Cells.Count Then
Err.Raise vbObjectError, "FillRandomCells()", _
"Number of cells to be changed can not exceed number of cells in range"
End If
For Each c In targetRange.Cells
targetCells.Add c
Next
' now pick random 5
Dim i As Long, randomIndex As Long
Dim upperbound As Long
Dim lowerbound As Long
For i = 1 To numberOfCells
lowerbound = 1 ' collections start with 1
upperbound = targetCells.Count ' changes as we are removing cells we used
randomIndex = Int((upperbound - lowerbound + 1) * Rnd + lowerbound)
Set c = targetCells(randomIndex)
targetCells.Remove randomIndex ' remove so we don't use it again!
c.Interior.Color = 5 ' do what you need to do here
Next
End Sub
Sub testFillRandomCells()
FillRandomCells ActiveSheet.[a1:t20], 5
FillRandomCells ActiveSheet.[b25:f30], 3
End Sub
EDIT: Changed to make the target range and number of changed cells configurable as arguments to a function. Also added error checking (always do that!).
Why not build a list of random numbers and place in a Scripting.Dictionary, one can use the Dictionary's Exist method to detect duplicates, loop through until you have enough then you can enter your colouring code confident that you have a unique list.
I have a ListView with multiple columns. More precisely, the ListView contains 8 columns. 2 of them should be filled with checkboxes.
Currently only the first column contains checkboxes. It is defined as follows:
While Not rs.EOF
//first column with checkboxes
ListViewCustomer.ListItems.Add , , rs("Id")
ListViewCustomer.ListItems(ListViewCustomer.ListItems.Count).tag = rs("Status")
//second column etc.
ListViewCustomer.ListItems(ListViewCustomer.ListItems.Count).ListSubItems.Add , , rs("name")
....
//Here is the second column, which doesn't display the checkboxes
ListViewCustomer.ListItems(ListViewCustomer.ListItems.Count).ListSubItems.Add , , IIf(IsNull(rs("date_from")), "", rs("date_from"))
ListViewCustomer.ListItems(ListViewCustomer.ListItems.Count).tag = rs("Status2")
Wend
Do anyone have an idea how to add the checkboxes in the last column?
EDIT:
Is it possible to realize this column with adding via .Controls?
A ListView is a more expanded version of the ListBox control.
See ListBox control on msdn as well.
They both display records of rows (the ListView has more advanced formatting options). This however means that a record is a row. Therefore you select a row when you select one of the items.
The function of the checkbox is to allow the user to mark the row(s) that is the records(s) he selects.
Thus there is only one checkbox per row, at the front of the row.
Consider this code (this is Excel 2003 VBA, but gives you the idea):
Private Sub UserForm_Initialize()
Dim MyArray(6, 8)
'Array containing column values for ListBox.
ListBox1.ColumnCount = 8
ListBox1.MultiSelect = fmMultiSelectExtended
'Load integer values MyArray
For i = 0 To 5
MyArray(i, 0) = i
For j = 1 To 7
MyArray(i, j) = Rnd
Next j
Next i
'Load ListBox1
ListBox1.List() = MyArray
End Sub
You could do a custom ListBox or ListView if you really want. You could create a frame and put Labels and CheckBoxes on it. This is the only way to do this in Excel2003 where I tested. The ListBox object has no Controls child.
But this is more like a datagrid and not really a ListBox or ListView which by definition are a listing of records (rows).
Update:
I saw your update and that you really want to place the CheckBox at the end of the row.
If you only want one checkbox at the last row, you could do this custom checkbox. Again this is written for the ListBox, so need to convert it to your ListView if you want to.
Still requires a custom handling, but I had some time, so I did this code. See if you like it:
Private Sub ListBox1_Change()
For i = 0 To ListBox1.ListCount - 1
ListBox1.List(i, 3) = ChrW(&H2610)
Next i
ListBox1.List(ListBox1.ListIndex, 3) = ChrW(&H2611)
End Sub
Private Sub UserForm_Initialize()
Dim MyArray(5, 3)
'Array containing column values for ListBox.
ListBox1.ColumnCount = 4
ListBox1.MultiSelect = 0
ListBox1.ListStyle = 0
'Load integer values MyArray
For i = 0 To 5
MyArray(i, 0) = i
For j = 1 To 2
MyArray(i, j) = Rnd
Next j
MyArray(i, 3) = ChrW(&H2610)
Next i
'Load ListBox1
ListBox1.List() = MyArray
End Sub
Is it possible to set up the headers in a multicolumn listbox without using a worksheet range as the source?
The following uses an array of variants which is assigned to the list property of the listbox, the headers appear blank.
Sub testMultiColumnLb()
ReDim arr(1 To 3, 1 To 2)
arr(1, 1) = "1"
arr(1, 2) = "One"
arr(2, 1) = "2"
arr(2, 2) = "Two"
arr(3, 1) = "3"
arr(3, 2) = "Three"
With ufTestUserForm.lbTest
.Clear
.ColumnCount = 2
.List = arr
End With
ufTestUserForm.Show 1
End Sub
Here is my approach to solve the problem:
This solution requires you to add a second ListBox element and place it above the first one.
Like this:
Then you call the function CreateListBoxHeader to make the alignment correct and add header items.
Result:
Code:
Public Sub CreateListBoxHeader(body As MSForms.ListBox, header As MSForms.ListBox, arrHeaders)
' make column count match
header.ColumnCount = body.ColumnCount
header.ColumnWidths = body.ColumnWidths
' add header elements
header.Clear
header.AddItem
Dim i As Integer
For i = 0 To UBound(arrHeaders)
header.List(0, i) = arrHeaders(i)
Next i
' make it pretty
body.ZOrder (1)
header.ZOrder (0)
header.SpecialEffect = fmSpecialEffectFlat
header.BackColor = RGB(200, 200, 200)
header.Height = 10
' align header to body (should be done last!)
header.Width = body.Width
header.Left = body.Left
header.Top = body.Top - (header.Height - 1)
End Sub
Usage:
Private Sub UserForm_Activate()
Call CreateListBoxHeader(Me.listBox_Body, Me.listBox_Header, Array("Header 1", "Header 2"))
End Sub
No. I create labels above the listbox to serve as headers. You might think that it's a royal pain to change labels every time your lisbox changes. You'd be right - it is a pain. It's a pain to set up the first time, much less changes. But I haven't found a better way.
I was looking at this problem just now and found this solution. If your RowSource points to a range of cells, the column headings in a multi-column listbox are taken from the cells immediately above the RowSource.
Using the example pictured here, inside the listbox, the words Symbol and Name appear as title headings. When I changed the word Name in cell AB1, then opened the form in the VBE again, the column headings changed.
The example came from a workbook in VBA For Modelers by S. Christian Albright, and I was trying to figure out how he got the column headings in his listbox :)
Simple answer: no.
What I've done in the past is load the headings into row 0 then set the ListIndex to 0 when displaying the form. This then highlights the "headings" in blue, giving the appearance of a header. The form action buttons are ignored if the ListIndex remains at zero, so these values can never be selected.
Of course, as soon as another list item is selected, the heading loses focus, but by this time their job is done.
Doing things this way also allows you to have headings that scroll horizontally, which is difficult/impossible to do with separate labels that float above the listbox. The flipside is that the headings do not remain visible if the listbox needs to scroll vertically.
Basically, it's a compromise that works in the situations I've been in.
There is very easy solution to show headers at the top of multi columns list box.
Just change the property value to "true" for "columnheads" which is false by default.
After that Just mention the data range in property "rowsource" excluding header from the data range and header should be at first top row of data range then it will pick the header automatically and you header will be freezed.
if suppose you have data in range "A1:H100" and header at "A1:H1" which is the first row then your data range should be "A2:H100" which needs to mention in property "rowsource" and "columnheads" perperty value should be true
Regards,
Asif Hameed
Just use two Listboxes, one for header and other for data
for headers - set RowSource property to top row e.g. Incidents!Q4:S4
for data - set Row Source Property to Incidents!Q5:S10
SpecialEffects to "3-frmSpecialEffectsEtched"
I like to use the following approach for headers on a ComboBox where the CboBx is not loaded from a worksheet (data from sql for example). The reason I specify not from a worksheet is that I think the only way to get RowSource to work is if you load from a worksheet.
This works for me:
Create your ComboBox and create a ListBox with an identical layout but just one row.
Place the ListBox directly on top of the ComboBox.
In your VBA, load ListBox row1 with the desired headers.
In your VBA for the action yourListBoxName_Click, enter the following code:
yourComboBoxName.Activate`
yourComboBoxName.DropDown`
When you click on the listbox, the combobox will drop down and function normally while the headings (in the listbox) remain above the list.
I was searching for quite a while for a solution to add a header without using a separate sheet and copy everything into the userform.
My solution is to use the first row as header and run it through an if condition and add additional items underneath.
Like that:
If lborowcount = 0 Then
With lboorder
.ColumnCount = 5
.AddItem
.Column(0, lborowcount) = "Item"
.Column(1, lborowcount) = "Description"
.Column(2, lborowcount) = "Ordered"
.Column(3, lborowcount) = "Rate"
.Column(4, lborowcount) = "Amount"
End With
lborowcount = lborowcount + 1
End If
With lboorder
.ColumnCount = 5
.AddItem
.Column(0, lborowcount) = itemselected
.Column(1, lborowcount) = descriptionselected
.Column(2, lborowcount) = orderedselected
.Column(3, lborowcount) = rateselected
.Column(4, lborowcount) = amountselected
End With
lborowcount = lborowcount + 1
in that example lboorder is the listbox, lborowcount counts at which row to add the next listbox item. It's a 5 column listbox. Not ideal but it works and when you have to scroll horizontally the "header" stays above the row.
Here's my solution.
I noticed that when I specify the listbox's rowsource via the properties window in the VBE, the headers pop up no problem. Its only when we try define the rowsource through VBA code that the headers get lost.
So I first went a defined the listboxes rowsource as a named range in the VBE for via the properties window, then I can reset the rowsource in VBA code after that. The headers still show up every time.
I am using this in combination with an advanced filter macro from a listobject, which then creates another (filtered) listobject on which the rowsource is based.
This worked for me
Another variant on Lunatik's response is to use a local boolean and the change event so that the row can be highlighted upon initializing, but deselected and blocked after a selection change is made by the user:
Private Sub lbx_Change()
If Not bHighlight Then
If Me.lbx.Selected(0) Then Me.lbx.Selected(0) = False
End If
bHighlight = False
End Sub
When the listbox is initialized you then set bHighlight and lbx.Selected(0) = True, which will allow the header-row to initialize selected; afterwards, the first change will deselect and prevent the row from being selected again...
Here's one approach which automates creating labels above each column of a listbox (on a worksheet).
It will work (though not super-pretty!) as long as there's no horizontal scrollbar on your listbox.
Sub Tester()
Dim i As Long
With Me.lbTest
.Clear
.ColumnCount = 5
'must do this next step!
.ColumnWidths = "70;60;100;60;60"
.ListStyle = fmListStylePlain
Debug.Print .ColumnWidths
For i = 0 To 10
.AddItem
.List(i, 0) = "blah" & i
.List(i, 1) = "blah"
.List(i, 2) = "blah"
.List(i, 3) = "blah"
.List(i, 4) = "blah"
Next i
End With
LabelHeaders Me.lbTest, Array("Header1", "Header2", _
"Header3", "Header4", "Header5")
End Sub
Sub LabelHeaders(lb, arrHeaders)
Const LBL_HT As Long = 15
Dim T, L, shp As Shape, cw As String, arr
Dim i As Long, w
'delete any previous headers for this listbox
For i = lb.Parent.Shapes.Count To 1 Step -1
If lb.Parent.Shapes(i).Name Like lb.Name & "_*" Then
lb.Parent.Shapes(i).Delete
End If
Next i
'get an array of column widths
cw = lb.ColumnWidths
If Len(cw) = 0 Then Exit Sub
cw = Replace(cw, " pt", "")
arr = Split(cw, ";")
'start points for labels
T = lb.Top - LBL_HT
L = lb.Left
For i = LBound(arr) To UBound(arr)
w = CLng(arr(i))
If i = UBound(arr) And (L + w) < lb.Width Then w = lb.Width - L
Set shp = ActiveSheet.Shapes.AddShape(msoShapeRectangle, _
L, T, w, LBL_HT)
With shp
.Name = lb.Name & "_" & i
'do some formatting
.Line.ForeColor.RGB = vbBlack
.Line.Weight = 1
.Fill.ForeColor.RGB = RGB(220, 220, 220)
.TextFrame2.TextRange.Characters.Text = arrHeaders(i)
.TextFrame2.TextRange.Font.Size = 9
.TextFrame2.TextRange.Font.Fill.ForeColor.RGB = vbBlack
End With
L = L + w
Next i
End Sub
You can give this a try. I am quite new to the forum but wanted to offer something that worked for me since I've gotten so much help from this site in the past. This is essentially a variation of the above, but I found it simpler.
Just paste this into the Userform_Initialize section of your userform code. Note you must already have a listbox on the userform or have it created dynamically above this code. Also please note the Array is a list of headings (below as "Header1", "Header2" etc. Replace these with your own headings. This code will then set up a heading bar at the top based on the column widths of the list box. Sorry it doesn't scroll - it's fixed labels.
More senior coders - please feel free to comment or improve this.
Dim Mywidths As String
Dim Arrwidths, Arrheaders As Variant
Dim ColCounter, Labelleft As Long
Dim theLabel As Object
[Other code here that you would already have in the Userform_Initialize section]
Set theLabel = Me.Controls.Add("Forms.Label.1", "Test" & ColCounter, True)
With theLabel
.Left = ListBox1.Left
.Top = ListBox1.Top - 10
.Width = ListBox1.Width - 1
.Height = 10
.BackColor = RGB(200, 200, 200)
End With
Arrheaders = Array("Header1", "Header2", "Header3", "Header4")
Mywidths = Me.ListBox1.ColumnWidths
Mywidths = Replace(Mywidths, " pt", "")
Arrwidths = Split(Mywidths, ";")
Labelleft = ListBox1.Left + 18
For ColCounter = LBound(Arrwidths) To UBound(Arrwidths)
If Arrwidths(ColCounter) > 0 Then
Header = Header + 1
Set theLabel = Me.Controls.Add("Forms.Label.1", "Test" & ColCounter, True)
With theLabel
.Caption = Arrheaders(Header - 1)
.Left = Labelleft
.Width = Arrwidths(ColCounter)
.Height = 10
.Top = ListBox1.Top - 10
.BackColor = RGB(200, 200, 200)
.Font.Bold = True
End With
Labelleft = Labelleft + Arrwidths(ColCounter)
End If
Next
This is a bummer. Have to use an intermediate sheet to put the data in so Excel knows to grab the headers. But I wanted that workbook to be hidden so here's how I had to do the rowsource.
Most of this code is just setting things up...
Sub listHeaderTest()
Dim ws As Worksheet
Dim testarr() As String
Dim numberOfRows As Long
Dim x As Long, n As Long
'example sheet
Set ws = ThisWorkbook.Sheets(1)
'example headers
For x = 1 To UserForm1.ListBox1.ColumnCount
ws.Cells(1, x) = "header" & x
Next x
'example array dimensions
numberOfRows = 15
ReDim testarr(numberOfRows, UserForm1.ListBox1.ColumnCount - 1)
'example values for the array/listbox
For n = 0 To UBound(testarr)
For x = 0 To UBound(testarr, 2)
testarr(n, x) = "test" & n & x
Next x
Next n
'put array data into the worksheet
ws.Range("A2").Resize(UBound(testarr), UBound(testarr, 2) + 1) = testarr
'provide rowsource
UserForm1.ListBox1.RowSource = "'[" & ws.Parent.Name & "]" & ws.Name & "'!" _
& ws.Range("A2").Resize(ws.UsedRange.Rows.Count - 1, ws.UsedRange.Columns.Count).Address
UserForm1.Show
End Sub
For scrolling, one idea is to create a simulated scroll bar which would shift the entire listbox left and right.
ensure the list box is set to full width so the horizontal scroll
bar doesn't appear (wider than the space available, or we wouldn't
need to scroll)
add a scroll bar control at the bottom but with .left and .width to
match the available horizontal space (so not as wide as the too-wide listbox)
calculate the distance you need to scroll as the difference between
the width of the extended list box and the width of the available
horizontal space
set .Min to 0 and .Max to the amount you need to scroll
set .LargeChange to make the slider-bar wider (I could only get it
to be half of the total span)
For this to work, you'd need to be able to cover left and right of the intended viewing space with a frame so that the listbox can pass underneath it and preserve any horizontal framing in the form. This turn out to be challenging, as getting a frame to cover a listbox seems not to work easily. I gave up at that point but am sharing these steps for posterity.
I found a way that seems to work but it can get messy the more complicated your code gets if you're dynamically clearing the range after every search or changing range.
Spreadsheet:
A B C
1 LName Fname
2 Smith Bob
set rng_Name = ws_Name.range("A1", ws_Name.range("C2").value
lstbx.Main.rowsource = rng_Name.Address
This will loads the Headers into the listbox and allow you to scroll.
Most importantly, if you're looping through your data and your range comes up empty, then your listbox won't load the headers correctly, so you will have to account for no "matches".
Why not just add Labels to the top of the Listbox and if changes are needed, the only thing you need to programmatically change are the labels.
Is it possible to set up the headers in a multicolumn listbox without using a worksheet range as the source?
The following uses an array of variants which is assigned to the list property of the listbox, the headers appear blank.
Sub testMultiColumnLb()
ReDim arr(1 To 3, 1 To 2)
arr(1, 1) = "1"
arr(1, 2) = "One"
arr(2, 1) = "2"
arr(2, 2) = "Two"
arr(3, 1) = "3"
arr(3, 2) = "Three"
With ufTestUserForm.lbTest
.Clear
.ColumnCount = 2
.List = arr
End With
ufTestUserForm.Show 1
End Sub
Here is my approach to solve the problem:
This solution requires you to add a second ListBox element and place it above the first one.
Like this:
Then you call the function CreateListBoxHeader to make the alignment correct and add header items.
Result:
Code:
Public Sub CreateListBoxHeader(body As MSForms.ListBox, header As MSForms.ListBox, arrHeaders)
' make column count match
header.ColumnCount = body.ColumnCount
header.ColumnWidths = body.ColumnWidths
' add header elements
header.Clear
header.AddItem
Dim i As Integer
For i = 0 To UBound(arrHeaders)
header.List(0, i) = arrHeaders(i)
Next i
' make it pretty
body.ZOrder (1)
header.ZOrder (0)
header.SpecialEffect = fmSpecialEffectFlat
header.BackColor = RGB(200, 200, 200)
header.Height = 10
' align header to body (should be done last!)
header.Width = body.Width
header.Left = body.Left
header.Top = body.Top - (header.Height - 1)
End Sub
Usage:
Private Sub UserForm_Activate()
Call CreateListBoxHeader(Me.listBox_Body, Me.listBox_Header, Array("Header 1", "Header 2"))
End Sub
No. I create labels above the listbox to serve as headers. You might think that it's a royal pain to change labels every time your lisbox changes. You'd be right - it is a pain. It's a pain to set up the first time, much less changes. But I haven't found a better way.
I was looking at this problem just now and found this solution. If your RowSource points to a range of cells, the column headings in a multi-column listbox are taken from the cells immediately above the RowSource.
Using the example pictured here, inside the listbox, the words Symbol and Name appear as title headings. When I changed the word Name in cell AB1, then opened the form in the VBE again, the column headings changed.
The example came from a workbook in VBA For Modelers by S. Christian Albright, and I was trying to figure out how he got the column headings in his listbox :)
Simple answer: no.
What I've done in the past is load the headings into row 0 then set the ListIndex to 0 when displaying the form. This then highlights the "headings" in blue, giving the appearance of a header. The form action buttons are ignored if the ListIndex remains at zero, so these values can never be selected.
Of course, as soon as another list item is selected, the heading loses focus, but by this time their job is done.
Doing things this way also allows you to have headings that scroll horizontally, which is difficult/impossible to do with separate labels that float above the listbox. The flipside is that the headings do not remain visible if the listbox needs to scroll vertically.
Basically, it's a compromise that works in the situations I've been in.
There is very easy solution to show headers at the top of multi columns list box.
Just change the property value to "true" for "columnheads" which is false by default.
After that Just mention the data range in property "rowsource" excluding header from the data range and header should be at first top row of data range then it will pick the header automatically and you header will be freezed.
if suppose you have data in range "A1:H100" and header at "A1:H1" which is the first row then your data range should be "A2:H100" which needs to mention in property "rowsource" and "columnheads" perperty value should be true
Regards,
Asif Hameed
Just use two Listboxes, one for header and other for data
for headers - set RowSource property to top row e.g. Incidents!Q4:S4
for data - set Row Source Property to Incidents!Q5:S10
SpecialEffects to "3-frmSpecialEffectsEtched"
I like to use the following approach for headers on a ComboBox where the CboBx is not loaded from a worksheet (data from sql for example). The reason I specify not from a worksheet is that I think the only way to get RowSource to work is if you load from a worksheet.
This works for me:
Create your ComboBox and create a ListBox with an identical layout but just one row.
Place the ListBox directly on top of the ComboBox.
In your VBA, load ListBox row1 with the desired headers.
In your VBA for the action yourListBoxName_Click, enter the following code:
yourComboBoxName.Activate`
yourComboBoxName.DropDown`
When you click on the listbox, the combobox will drop down and function normally while the headings (in the listbox) remain above the list.
I was searching for quite a while for a solution to add a header without using a separate sheet and copy everything into the userform.
My solution is to use the first row as header and run it through an if condition and add additional items underneath.
Like that:
If lborowcount = 0 Then
With lboorder
.ColumnCount = 5
.AddItem
.Column(0, lborowcount) = "Item"
.Column(1, lborowcount) = "Description"
.Column(2, lborowcount) = "Ordered"
.Column(3, lborowcount) = "Rate"
.Column(4, lborowcount) = "Amount"
End With
lborowcount = lborowcount + 1
End If
With lboorder
.ColumnCount = 5
.AddItem
.Column(0, lborowcount) = itemselected
.Column(1, lborowcount) = descriptionselected
.Column(2, lborowcount) = orderedselected
.Column(3, lborowcount) = rateselected
.Column(4, lborowcount) = amountselected
End With
lborowcount = lborowcount + 1
in that example lboorder is the listbox, lborowcount counts at which row to add the next listbox item. It's a 5 column listbox. Not ideal but it works and when you have to scroll horizontally the "header" stays above the row.
Here's my solution.
I noticed that when I specify the listbox's rowsource via the properties window in the VBE, the headers pop up no problem. Its only when we try define the rowsource through VBA code that the headers get lost.
So I first went a defined the listboxes rowsource as a named range in the VBE for via the properties window, then I can reset the rowsource in VBA code after that. The headers still show up every time.
I am using this in combination with an advanced filter macro from a listobject, which then creates another (filtered) listobject on which the rowsource is based.
This worked for me
Another variant on Lunatik's response is to use a local boolean and the change event so that the row can be highlighted upon initializing, but deselected and blocked after a selection change is made by the user:
Private Sub lbx_Change()
If Not bHighlight Then
If Me.lbx.Selected(0) Then Me.lbx.Selected(0) = False
End If
bHighlight = False
End Sub
When the listbox is initialized you then set bHighlight and lbx.Selected(0) = True, which will allow the header-row to initialize selected; afterwards, the first change will deselect and prevent the row from being selected again...
Here's one approach which automates creating labels above each column of a listbox (on a worksheet).
It will work (though not super-pretty!) as long as there's no horizontal scrollbar on your listbox.
Sub Tester()
Dim i As Long
With Me.lbTest
.Clear
.ColumnCount = 5
'must do this next step!
.ColumnWidths = "70;60;100;60;60"
.ListStyle = fmListStylePlain
Debug.Print .ColumnWidths
For i = 0 To 10
.AddItem
.List(i, 0) = "blah" & i
.List(i, 1) = "blah"
.List(i, 2) = "blah"
.List(i, 3) = "blah"
.List(i, 4) = "blah"
Next i
End With
LabelHeaders Me.lbTest, Array("Header1", "Header2", _
"Header3", "Header4", "Header5")
End Sub
Sub LabelHeaders(lb, arrHeaders)
Const LBL_HT As Long = 15
Dim T, L, shp As Shape, cw As String, arr
Dim i As Long, w
'delete any previous headers for this listbox
For i = lb.Parent.Shapes.Count To 1 Step -1
If lb.Parent.Shapes(i).Name Like lb.Name & "_*" Then
lb.Parent.Shapes(i).Delete
End If
Next i
'get an array of column widths
cw = lb.ColumnWidths
If Len(cw) = 0 Then Exit Sub
cw = Replace(cw, " pt", "")
arr = Split(cw, ";")
'start points for labels
T = lb.Top - LBL_HT
L = lb.Left
For i = LBound(arr) To UBound(arr)
w = CLng(arr(i))
If i = UBound(arr) And (L + w) < lb.Width Then w = lb.Width - L
Set shp = ActiveSheet.Shapes.AddShape(msoShapeRectangle, _
L, T, w, LBL_HT)
With shp
.Name = lb.Name & "_" & i
'do some formatting
.Line.ForeColor.RGB = vbBlack
.Line.Weight = 1
.Fill.ForeColor.RGB = RGB(220, 220, 220)
.TextFrame2.TextRange.Characters.Text = arrHeaders(i)
.TextFrame2.TextRange.Font.Size = 9
.TextFrame2.TextRange.Font.Fill.ForeColor.RGB = vbBlack
End With
L = L + w
Next i
End Sub
You can give this a try. I am quite new to the forum but wanted to offer something that worked for me since I've gotten so much help from this site in the past. This is essentially a variation of the above, but I found it simpler.
Just paste this into the Userform_Initialize section of your userform code. Note you must already have a listbox on the userform or have it created dynamically above this code. Also please note the Array is a list of headings (below as "Header1", "Header2" etc. Replace these with your own headings. This code will then set up a heading bar at the top based on the column widths of the list box. Sorry it doesn't scroll - it's fixed labels.
More senior coders - please feel free to comment or improve this.
Dim Mywidths As String
Dim Arrwidths, Arrheaders As Variant
Dim ColCounter, Labelleft As Long
Dim theLabel As Object
[Other code here that you would already have in the Userform_Initialize section]
Set theLabel = Me.Controls.Add("Forms.Label.1", "Test" & ColCounter, True)
With theLabel
.Left = ListBox1.Left
.Top = ListBox1.Top - 10
.Width = ListBox1.Width - 1
.Height = 10
.BackColor = RGB(200, 200, 200)
End With
Arrheaders = Array("Header1", "Header2", "Header3", "Header4")
Mywidths = Me.ListBox1.ColumnWidths
Mywidths = Replace(Mywidths, " pt", "")
Arrwidths = Split(Mywidths, ";")
Labelleft = ListBox1.Left + 18
For ColCounter = LBound(Arrwidths) To UBound(Arrwidths)
If Arrwidths(ColCounter) > 0 Then
Header = Header + 1
Set theLabel = Me.Controls.Add("Forms.Label.1", "Test" & ColCounter, True)
With theLabel
.Caption = Arrheaders(Header - 1)
.Left = Labelleft
.Width = Arrwidths(ColCounter)
.Height = 10
.Top = ListBox1.Top - 10
.BackColor = RGB(200, 200, 200)
.Font.Bold = True
End With
Labelleft = Labelleft + Arrwidths(ColCounter)
End If
Next
This is a bummer. Have to use an intermediate sheet to put the data in so Excel knows to grab the headers. But I wanted that workbook to be hidden so here's how I had to do the rowsource.
Most of this code is just setting things up...
Sub listHeaderTest()
Dim ws As Worksheet
Dim testarr() As String
Dim numberOfRows As Long
Dim x As Long, n As Long
'example sheet
Set ws = ThisWorkbook.Sheets(1)
'example headers
For x = 1 To UserForm1.ListBox1.ColumnCount
ws.Cells(1, x) = "header" & x
Next x
'example array dimensions
numberOfRows = 15
ReDim testarr(numberOfRows, UserForm1.ListBox1.ColumnCount - 1)
'example values for the array/listbox
For n = 0 To UBound(testarr)
For x = 0 To UBound(testarr, 2)
testarr(n, x) = "test" & n & x
Next x
Next n
'put array data into the worksheet
ws.Range("A2").Resize(UBound(testarr), UBound(testarr, 2) + 1) = testarr
'provide rowsource
UserForm1.ListBox1.RowSource = "'[" & ws.Parent.Name & "]" & ws.Name & "'!" _
& ws.Range("A2").Resize(ws.UsedRange.Rows.Count - 1, ws.UsedRange.Columns.Count).Address
UserForm1.Show
End Sub
For scrolling, one idea is to create a simulated scroll bar which would shift the entire listbox left and right.
ensure the list box is set to full width so the horizontal scroll
bar doesn't appear (wider than the space available, or we wouldn't
need to scroll)
add a scroll bar control at the bottom but with .left and .width to
match the available horizontal space (so not as wide as the too-wide listbox)
calculate the distance you need to scroll as the difference between
the width of the extended list box and the width of the available
horizontal space
set .Min to 0 and .Max to the amount you need to scroll
set .LargeChange to make the slider-bar wider (I could only get it
to be half of the total span)
For this to work, you'd need to be able to cover left and right of the intended viewing space with a frame so that the listbox can pass underneath it and preserve any horizontal framing in the form. This turn out to be challenging, as getting a frame to cover a listbox seems not to work easily. I gave up at that point but am sharing these steps for posterity.
I found a way that seems to work but it can get messy the more complicated your code gets if you're dynamically clearing the range after every search or changing range.
Spreadsheet:
A B C
1 LName Fname
2 Smith Bob
set rng_Name = ws_Name.range("A1", ws_Name.range("C2").value
lstbx.Main.rowsource = rng_Name.Address
This will loads the Headers into the listbox and allow you to scroll.
Most importantly, if you're looping through your data and your range comes up empty, then your listbox won't load the headers correctly, so you will have to account for no "matches".
Why not just add Labels to the top of the Listbox and if changes are needed, the only thing you need to programmatically change are the labels.
I have a two dimensional table with countries and years in Excel. eg.
1961 1962 1963 1964
USA a x g y
France u e h a
Germany o x n p
I'd like to "flatten" it, such that I have Country in the first col, Year in the second col, and then value in the third col. eg.
Country Year Value
USA 1961 a
USA 1962 x
USA 1963 g
USA 1964 y
France 1961 u
...
The example I present here is only a 3x4 matrix, but the real dataset i have is significantly larger (roughly 50x40 or so).
Any suggestions how I can do this using Excel?
You can use the excel pivot table feature to reverse a pivot table (which is essentially what you have here):
Good instructions here:
http://spreadsheetpage.com/index.php/tip/creating_a_database_table_from_a_summary_table/
Which links to the following VBA code (put it in a module) if you don't want to follow the instructions by hand:
Sub ReversePivotTable()
' Before running this, make sure you have a summary table with column headers.
' The output table will have three columns.
Dim SummaryTable As Range, OutputRange As Range
Dim OutRow As Long
Dim r As Long, c As Long
On Error Resume Next
Set SummaryTable = ActiveCell.CurrentRegion
If SummaryTable.Count = 1 Or SummaryTable.Rows.Count < 3 Then
MsgBox "Select a cell within the summary table.", vbCritical
Exit Sub
End If
SummaryTable.Select
Set OutputRange = Application.InputBox(prompt:="Select a cell for the 3-column output", Type:=8)
' Convert the range
OutRow = 2
Application.ScreenUpdating = False
OutputRange.Range("A1:C3") = Array("Column1", "Column2", "Column3")
For r = 2 To SummaryTable.Rows.Count
For c = 2 To SummaryTable.Columns.Count
OutputRange.Cells(OutRow, 1) = SummaryTable.Cells(r, 1)
OutputRange.Cells(OutRow, 2) = SummaryTable.Cells(1, c)
OutputRange.Cells(OutRow, 3) = SummaryTable.Cells(r, c)
OutputRange.Cells(OutRow, 3).NumberFormat = SummaryTable.Cells(r, c).NumberFormat
OutRow = OutRow + 1
Next c
Next r
End Sub
-Adam
In Excel 2013 need to follow next steps:
select data and convert to table (Insert -> Table)
call Query Editor for table (Power Query -> From Table)
select columns that contain years
in context menu select 'Unpivot Columns'-command.
Support Office: Unpivot columns (Power Query)
In Excel 2016, Power Query is called Get & Transform and it is found in the Data tab.
#Adam Davis's answer is perfect, but just in case you're as clueless as I am about Excel VBA, here's what I did to get the code working in Excel 2007:
Open the workbook with the Matrix that needs to be flattened to a table and navigate to that worksheet
Press Alt-F11 to open the VBA code editor.
On the left pane, in the Project box, you'll see a tree structure representing the excel objects and any code (called modules) that already exist. Right click anywhere in the box and select "Insert->Module" to create a blank module file.
Copy and paste #Adman Davis's code from above as is into the blank page the opens and save it.
Close the VBA editor window and return to the spreadsheet.
Click on any cell in the matrix to indicate the matrix you'll be working with.
Now you need to run the macro. Where this option is will vary based on your version of Excel. As I'm using 2007, I can tell you that it keeps its macros in the "View" ribbon as the farthest right control. Click it and you'll see a laundry list of macros, just double click on the one called "ReversePivotTable" to run it.
It will then show a popup asking you to tell it where to create the flattened table. Just point it to any empty space an your spreadsheet and click "ok"
You're done! The first column will be the rows, the second column will be the columns, the third column will be the data.
Flattening a data matrix (aka Table) can be accomplished with one array formula¹ and two standard formulas.
The array formula¹ and two standard formulas in G3:I3 are is,
=IFERROR(INDEX(A$2:A$4, MATCH(0, IF(COUNTIF(G$2:G2, A$2:A$4&"")<COUNT($1:$1), 0, 1), 0)), "")
=IF(LEN(G3), INDEX($B$1:INDEX($1:$1, MATCH(1E+99,$1:$1 )), , COUNTIF(G$3:G3, G3)), "")
=INDEX(A:J,MATCH(G3,A:A,0),MATCH(H3,$1:$1,0))
Fill down as necessary.
While array formulas can negatively impact performance due to their cyclic calculation, your described working environment of 40 rows × 50 columns should not overly impact performance with a calculation lag.
¹ Array formulas need to be finalized with Ctrl+Shift+Enter↵. Once entered into the first cell correctly, they can be filled or copied down or right just like any other formula. Try and reduce full-column references to ranges more closely representing the extents of your actual data. Array formulas chew up calculation cycles logarithmically so it is good practise to narrow the referenced ranges to a minimum. See Guidelines and examples of array formulas for more information.
For anyone who wants to use the PivotTable to do this and is following the below guide:
http://spreadsheetpage.com/index.php/tip/creating_a_database_table_from_a_summary_table/
If you want to do it in Excel 2007 or 2010 then you first need to enable the PivotTable Wizard.
To find the option you need to go to "Excel Options" via the Main Excel Window icon, and see the options selected in the "customize" section, then select "Commands Not in the Ribbon" from the "Choose Commands from:" dropdown and "PivotTable and PivotChart Wizard" needs to be added to the right.. see the image below.
Once that is done there should be a small pivottable wizard icon in the quickbar menu at the top of the Excel window, you can then follow the same process as shown in the link above.
I developed another macro because I needed to refresh the output table quite often (input table was filled by other) and I wanted to have more info in my output table (more copied column and some formulas)
Sub TableConvert()
Dim tbl As ListObject
Dim t
Rows As Long
Dim tCols As Long
Dim userCalculateSetting As XlCalculation
Dim wrksht_in As Worksheet
Dim wrksht_out As Worksheet
'##block calculate and screen refresh
Application.ScreenUpdating = False
userCalculateSetting = Application.Calculation
Application.Calculation = xlCalculationManual
'## get the input and output worksheet
Set wrksht_in = ActiveWorkbook.Worksheets("ressource_entry")'## input
Set wrksht_out = ActiveWorkbook.Worksheets("data")'## output.
'## get the table object from the worksheet
Set tbl = wrksht_in.ListObjects("Table14") '## input
Set tb2 = wrksht_out.ListObjects("Table2") '## output.
'## delete output table data
If Not tb2.DataBodyRange Is Nothing Then
tb2.DataBodyRange.Delete
End If
'## count the row and col of input table
With tbl.DataBodyRange
tRows = .Rows.Count
tCols = .Columns.Count
End With
'## check every case of the input table (only the data part)
For j = 2 To tRows '## parse all row from row 2 (header are not checked)
For i = 5 To tCols '## parse all column from col 5 (first col will be copied in each record)
If IsEmpty(tbl.Range.Cells(j, i).Value) = False Then
'## if there is time enetered create a new row in table2 by using the first colmn of the selected cell row and cell header plus some formula
Set oNewRow = tb2.ListRows.Add(AlwaysInsert:=True)
oNewRow.Range.Cells(1, 1).Value = tbl.Range.Cells(j, 1).Value
oNewRow.Range.Cells(1, 2).Value = tbl.Range.Cells(j, 2).Value
oNewRow.Range.Cells(1, 3).Value = tbl.Range.Cells(j, 3).Value
oNewRow.Range.Cells(1, 4).Value = tbl.Range.Cells(1, i).Value
oNewRow.Range.Cells(1, 5).Value = tbl.Range.Cells(j, i).Value
oNewRow.Range.Cells(1, 6).Formula = "=WEEKNUM([#Date])"
oNewRow.Range.Cells(1, 7).Formula = "=YEAR([#Date])"
oNewRow.Range.Cells(1, 8).Formula = "=MONTH([#Date])"
End If
Next i
Next j
ThisWorkbook.RefreshAll
'##unblock calculate and screen refresh
Application.ScreenUpdating = True
Application.Calculate
Application.Calculation = userCalculateSetting
End Sub
VBA solution may not be acceptable under some situations (e.g. cannot embed macro due to security reasons, etc.). For these situations, and otherwise too in general, I prefer using formulae over macro.
I am trying to describe my solution below.
input data as shown in question (B2:F5)
column_header (C2:F2)
row_header (B3:B5)
data_matrix (C3:F5)
no_of_data_rows (I2) = COUNTA(row_header) + COUNTBLANK(row_header)
no_of_data_columns (I3) = COUNTA(column_header) + COUNTBLANK(column_header)
no_output_rows (I4) = no_of_data_rows*no_of_data_columns
seed area is K2:M2, which is blank but referenced, hence not to be deleted
K3 (drag through say K100, see comments description) = ROW()-ROW($K$2) <= no_output_rows
L3 (drag through say L100, see comments description) = IF(K3,IF(COUNTIF($L$2:L2,L2)
M3 (drag through say M100, see comments description) = IF(K3,IF(M2 < no_of_data_columns,M2+1,1),"-")
N3 (drag through say N100, see comments description) = INDEX(row_header,L3)
O3 (drag through say O100, see comments description) = INDEX(column_header,M3)
P3 (drag through say P100, see comments description) = INDEX(data_matrix,L3,M3)
Comment in K3: Optional: Check if expected no. of output rows has been achieved. Not required, if one only prepares this table limited to no. of output rows.
Comment in L3: Goal: Each RowIndex (1 .. no_of_data_rows) must repeat no_of_data_columns times. This will provide index lookup for row_header values. In this example, each RowIndex (1 .. 3) must repeat 4 times. Algorithm: Check how many times RowIndex has occurred yet. If it less than no_of_data_columns times, continue using that RowIndex, else increment the RowIndex. Optional: Check if expected no. of output rows has been achieved.
Comment in M3: Goal: Each ColumnIndex (1 .. no_of_data_columns) must repeat in a cycle. This will provide index lookup for column_header values. In this example, each ColumnIndex (1 .. 4) must repeat in a cycle. Algorithm: If ColumnIndex exceeds no_of_data_columns, restart the cycle at 1, else increment the ColumnIndex. Optional: Check if expected no. of output rows has been achieved.
Comment in R4: Optional: Use column K for error handling, as shown in column L and column M. Check if looked up value IsBlank to avoid incorrect "0" in the output because of blank input in data_matrix.
updated ReversePivotTable function so i can specify number of header columns and rows
Sub ReversePivotTable()
' Before running this, make sure you have a summary table with column headers.
' The output table will have three columns.
Dim SummaryTable As Range, OutputRange As Range
Dim OutRow As Long
Dim r As Long, c As Long
Dim lngHeaderColumns As Long, lngHeaderRows As Long, lngHeaderLoop As Long
On Error Resume Next
Set SummaryTable = ActiveCell.CurrentRegion
If SummaryTable.Count = 1 Or SummaryTable.Rows.Count < 3 Then
MsgBox "Select a cell within the summary table.", vbCritical
Exit Sub
End If
SummaryTable.Select
Set OutputRange = Application.InputBox(prompt:="Select a cell for the 3-column output", Type:=8)
lngHeaderColumns = Application.InputBox(prompt:="Header Columns")
lngHeaderRows = Application.InputBox(prompt:="Header Rows")
' Convert the range
OutRow = 2
Application.ScreenUpdating = False
'OutputRange.Range("A1:D3") = Array("Column1", "Column2", "Column3", "Column4")
For r = lngHeaderRows + 1 To SummaryTable.Rows.Count
For c = lngHeaderColumns + 1 To SummaryTable.Columns.Count
' loop through all header columns and add to output
For lngHeaderLoop = 1 To lngHeaderColumns
OutputRange.Cells(OutRow, lngHeaderLoop) = SummaryTable.Cells(r, lngHeaderLoop)
Next lngHeaderLoop
' loop through all header rows and add to output
For lngHeaderLoop = 1 To lngHeaderRows
OutputRange.Cells(OutRow, lngHeaderColumns + lngHeaderLoop) = SummaryTable.Cells(lngHeaderLoop, c)
Next lngHeaderLoop
OutputRange.Cells(OutRow, lngHeaderColumns + lngHeaderRows + 1) = SummaryTable.Cells(r, c)
OutputRange.Cells(OutRow, lngHeaderColumns + lngHeaderRows + 1).NumberFormat = SummaryTable.Cells(r, c).NumberFormat
OutRow = OutRow + 1
Next c
Next r
End Sub
Code with the claim for some universality
The book should have two sheets:
Sour = Source data
Dest = the "extended" table will drop here
Option Explicit
Private ws_Sour As Worksheet, ws_Dest As Worksheet
Private arr_2d_Sour() As Variant, arr_2d_Dest() As Variant
' https://stackoverflow.com/questions/52594461/find-next-available-value-in-excel-cell-based-on-criteria
Public Sub PullOut(Optional ByVal msg As Variant)
ws_Dest_Acr _
arr_2d_ws( _
arr_2d_Dest_Fill( _
arr_2d_Sour_Load( _
arr_2d_Dest_Create( _
CountA_rng( _
rng_2d_For_CountA( _
Init))))))
End Sub
Private Function ws_Dest_Acr(Optional ByVal msg As Variant) As Variant
ws_Dest.Activate
End Function
Public Function arr_2d_ws(Optional ByVal msg As Variant) As Variant
If IsArray(arr_2d_Dest) Then _
ws_Dest.Cells(1, 1).Resize(UBound(arr_2d_Dest), UBound(arr_2d_Dest, 2)) = arr_2d_Dest
End Function
Private Function arr_2d_Dest_Fill(Optional ByVal msg As Variant) As Variant
Dim y_Sour As Long, y_Dest As Long, x As Long
y_Dest = 1
For y_Sour = LBound(arr_2d_Sour) To UBound(arr_2d_Sour)
' without the first column
For x = LBound(arr_2d_Sour, 2) + 1 To UBound(arr_2d_Sour, 2)
If arr_2d_Sour(y_Sour, x) <> Empty Then
arr_2d_Dest(y_Dest, 1) = arr_2d_Sour(y_Sour, 1) 'iD
arr_2d_Dest(y_Dest, 2) = arr_2d_Sour(y_Sour, x) 'DTLx
y_Dest = y_Dest + 1
End If
Next
Next
End Function
Private Function arr_2d_Sour_Load(Optional ByVal msg As Variant) As Variant
arr_2d_Sour = ReDuce_rng(ws_Sour.UsedRange, 1, 0).Offset(1, 0).Value
End Function
Private Function arr_2d_Dest_Create(ByVal iRows As Long)
Dim arr_2d() As Variant
ReDim arr_2d(1 To iRows, 1 To 2)
arr_2d_Dest = arr_2d
arr_2d_Dest_Create = arr_2d
End Function
Public Function CountA_rng(ByVal rng As Range) As Double
CountA_rng = Application.WorksheetFunction.CountA(rng)
End Function
Private Function rng_2d_For_CountA(Optional ByVal msg As Variant) As Range
' without the first line and without the left column
Set rng_2d_For_CountA = _
ReDuce_rng(ws_Sour.UsedRange, 1, 1).Offset(1, 1)
End Function
Public Function ReDuce_rng(rng As Range, ByVal iRow As Long, ByVal iCol As Long) _
As Range
With rng
Set ReDuce_rng = .Resize(.Rows.Count - iRow, .Columns.Count - iCol)
End With
End Function
Private Function Init()
With ThisWorkbook
Set ws_Sour = .Worksheets("Sour")
Set ws_Dest = .Worksheets("Dest")
End With
End Function
'https://youtu.be/oTp4aSWPKO0