Excel VBA: If A2="a","b","c",etc... then B2="aa"? - vba

I'm attempting to take the text in each cell of column A and assign a value to each cell in column B depending on the text in column A. For example, I have a list of versions that are identified by four-letter abbreviations of cities, and all of those versions are regionally assigned to different factories to be produced. So let's say I have an "AUST", "DAFW", "HOUS", and more versions all assigned to the location of "ARLINGTON". How would I most concisely use VBA to automate that once I have all the versions plugged in? Something like
If A2="AUST" Then
B2="ARLINGTON"
ElseIf A2="DAFW" Then
B2="ARLINGTON"
I suppose something like this would work, however I can't believe that there's not a faster and more concise way. Does this make any sense? I've been pulling my hair out for about a week now trying to figure this out... Thanks for any help!

This is a little simpler using OR:
If A2="AUST" OR A2="DAFW" Then
B2="ARLINGTON"
ElseIf A2 = "ABCD" OR A2 = "WZYZ" Then
B2="SOMETHING"
'ETC...
However, if you are iterating over column A, the variable "A2" is strange. But I am not sure how you are doing this. Maybe supply more code and we can help you more.

This could be done with excel formulas as well, though I always prefer to use VBA. This should work the way you want :
Sub yourFunk()
Set wb = ThisWorkbook
Set ws = wb.Sheets(1)
arlington = Array("AUST", "DAFW", "HOUS")
otherLocation = Array("XXXX", "YYYY", "ZZZZ")
lastRow = ws.Cells(ws.Rows.Count, 1).End(xlUp).Row
For x = 2 To lastRow
If stringIsInArray(ws.Cells(x, 1), arlington) Then
ws.Cells(x, 2) = "ARLINGTON"
ElseIf stringIsInArray(ws.Cells(x, 1), otherLocation) Then
ws.Cells(x, 2) = "OTHER LOCATION"
End If
Next x
End Sub
Function stringIsInArray(stringToBeFound As String, arr As Variant) As Boolean
stringIsInArray = (UBound(Filter(arr, stringToBeFound)) > -1)
End Function
If you need me to explain the code, please do let me know :)

The fastest way is to use Dictionary.
Let's say, your data is present in the following range:
A2 = "AUST"
A3 = "DAFW"
Now, check this code:
'Needs reference to Microsoft Scripting Runtime
Sub Translate()
Dim dic As Dictionary
Dim i As Integer, sTmp As String
Set dic = New Dictionary
dic.Add "AUST", "ARLINGTON"
dic.Add "DAFW", "ARLINGTON"
For i = 2 To 3
sTmp = ThisWorkbook.Worksheets(1).Range("A" & i)
Debug.Print sTmp, "-", dic(sTmp)
Next
Set dic = Nothing
End Sub
Note: This code is just an example!
For further information please see: https://msdn.microsoft.com/en-us/library/office/gg251825.aspx

Related

How to use a variable as a range in VLOOKUP inside VBA Evaluate?

I don't know if I explained this too well. I'm a beginner and I'm trying to get a value from a file using VLOOKUP in VBA. However, even though I can apparently work with the string itself, I cannot use it as a variable.
So, the idea is to automatically populate two text boxes when I select something in the dropdown. The dropwdown itself determines the Worksheet that has the data.
Private Sub cbProductList1_Change()
vCode1 = Application.WorksheetFunction.VLookup(cbProductList1.Value,
[Products!A:B], 2, False)
Me.tbProdCode1 = vCode1
vPrice1 = Evaluate("VLOOKUP(" & vCode1 & ", " & Me.labelCFValue & ", 2, False)")
Me.tbPrice1 = vPrice1
End Sub
If I run a MsgBox on vCode1 - it gives me the string that needs to be the first argument for VLOOKUP.
If I run a MsgBox on Me.labelCFValue it gives me CF_1!A25:B33 (without the quotes) just as I need it to do. But when I run MsgBox on vPrice1, I get an error.
Later Edit: Alternatively, if you could help me use Me.labelCFValue inside Application.WorksheetFunction.VLookup(), that could also be good.
Please help?
I was unable to test the code but believe that this should either work or help you find your way.
Option Explicit
Private Sub cbProductList1_Change()
Dim Rl As Long ' last row
Dim LookupRange As Range
Dim Sp() As String ' splitting labelCFValue
Dim vCode1 As String
Dim vPrice1 As Double
' ActiveSheet is the default, but better to declare
With ActiveSheet
Rl = .Cells(.Rows.Count, "A").End(xlUp).Row
Set LookupRange = .Range(.Cells(1, 1), Cells(Rl, 2))
End With
vCode1 = Application.VLookup(cbProductList1.Value, LookupRange, 2, False)
Me.tbProdCode1 = vCode1
' If Me.labelCFValue is a Label, the string should be its Caption property.
' If it is a Textbox the string should be its Value or Text property.
' Either way, it is better to specify what you are addressing:-
Sp = Split(Me.labelCFValue, "!")
Set LookupRange = Worksheets(Sp(0)).Range(Sp(1))
vPrice1 = Evaluate(Application.VLookup(vCode1, LookupRange, 2, False))
Me.tbPrice1 = vPrice1
End Sub
Consider adding some precautionary code to deal with the possibility that either of the Vlookups return an error.

How do I use a string as a variable in vba?

This is what my cells look like:
This is my code, I'll explain it below.
Sub Macro1()
Dim product as String
Dim group as Long
Dim recordno as Long
dim pol_number as Long
dim plan_name as Long
product = "corp"
group = 1
recordno = 1
pol_number = 1
plan_name = "TTT"
Range("A2").Select
For i = 1 to 5
ActiveCell.Value = Selection.End(xlUp).Value
ActiveCell.Offset(0,1).Select
Next i
End Sub
I want to fill in all of the cells with the variable values. I understand that variables are not case sensitive, and I understand that the code I have will just fill the cell with the text in the upmost cell of the column, but I don't know if there is a function that would take the text of the top cell and convert it to a variable. Is that possible?
Try this to go from variables to cells
Dim values as Variant
'Array 0 to 4
values = Array(product,group,recordno,pol_number,plan_name)
Range("A2").Resize(1,5).Value2 = values
The reverse is
Dim values as Variant
'Array 1 to 5
values = Range("A2").Resize(1,5).Value2
product = values(1,1)
group = values(1,2)
recordno = values(1,3)
pol_number = values(1,4)
plan_name = values(1,5)
If you do something like
someCell.Value = someOtherCell.Value
and someOtherCell.Value is "product" then someCell won't be filled with what you have saved in the variable product but with "product" (I included the quotation marks to emphasize that's it's a string). That's a good thing because otherwise it would mess your code up if you accidentally put in the name of some random variable in your code.
If your requirements are like this:
You have values for PRODUCT etc that you write to write in the row below PRODUCT etc.
The headers are not always in the same order.
You might want to add new variables later on without too much fuss.
Them some kind of keyed list might be what your looking for. That means that rather than referencing the variable by a numerical index, you can reference them using names.
If the order is fixed, you might be better of just using an array where item 1 is the product name, item 2 is the group number etc, like ja72 and Sgdva suggested.
However, if you still want to reference the variables by name, you could use a collection:
Dim coll As New Collection
With coll
.Add "corp", "product"
.Add 1, "group"
.Add 1, "recordno"
'...
End With
Then instead of selecting cells and referencing ActiveCell you should reference the cells directly (using selections and ActiveCell can be avoided most of the times and slows down the macro and can even cause unnecessary errors)
For i = 1 To 5
Cells(2, i).value = coll(Cells(1, i).value)
Next i
An alternative to a collection is a dictionary which offers an easy way to check if a key exists (with a collection you have to catch the error)
Dim dict As Object
Set dict = CreateObject("Scripting.Dictionary")
With dict
.Add "product", "corp"
.Add "group", 1
.Add "recordno", 1
'...
End With
Now you can check if the entry exists first so it won't throw an error:
For i = 1 To 5
If dict.Exists(LCase(Cells(1, i).value)) Then 'note that the dictionary keys are case sensitive
Cells(2, i).value = dict(LCase(Cells(1, i).value))
Else
MsgBox "Entry for " & LCase(Cells(1, i).value) & " not found!"
End If
Next i
Note that when you use dict("somekey") and the entry "somekey" doesn't exist, it won't throw an error but add an empty entry.
Why not an array and then loop through the elements as needed?
Dim ArrayTitles() As Variant 'since strings and numbers are mixed
ReDim Preserve ArrayTitles(5)
ArrayTitles(1) = "corp"
ArrayTitles(2) = 1
ArrayTitles(3) = 1
ArrayTitles(4) = 1
ArrayTitles(5) = "TTT"
Range("A2").Select
For i = 1 To 5
MsgBox (ArrayTitles(i))
I'm thinking what you are trying to accomplish can be solved in this way
for j = 1 to 6 'Or whatever your last column happens to be
if UCase(cells(1, j)) = "PRODUCT" then
if ActiveCell.Column = j then
ActiveCell.Value = "corp"
end if
end if
next j
Something like that?

Copy-paste data using specific columns names

I have a very basic knowledge and VBA but due to coding in other programming languages, I have a thought if I can copy-paste the data using specific column names in vba-excel. I use the following code till now but want to get over as I get stuck too often.
ThisWorkbook.Worksheets("Sheets2").Activate
lastrow = Worksheets("Sheet2").Cells(Rows.Count, "A").End(xlUp).Row + 1
Range("B2:B" & lastrow).Copy Worksheets("Sheet1").Range("a65536").End(xlUp).Offset(1, 2)
Range("A2:A" & lastrow).Copy Worksheets("Sheet1").Range("a65536").End(xlUp).Offset(1, 1)
Application.CutCopyMode = False
This will copy A and B column from Sheet2 to B and C column in Sheet1. Now can I do something like
Sheet2.colname.copy Sheet1.colname.offset
I am just curious and any help is appreciated. Thanks.
I often declare Const for the columns I'm referring to throughout complex code so I can refer to them by 'name'.
Const ItemNumCol = 1
Const DescCol = 2
Const CostCol = 3
etc...
It's not automatic, but by declaring them globally, it minimizes the pain of rearranging columns, and prevents me from having to go back to my spreadsheet to count every 2 minutes.
Usage Example
Dim ws1 as Worksheet
Dim ws2 as Worksheet
Set ws1 = ThisWorkbook.Worksheets("Sheets1")
Set ws2 = ThisWorkbook.Worksheets("Sheets2")
LastRow = ws2.UsedRange.Rows.Count + 1
ws.range(cells(2,DescCol),cells(LastRow,DescCol).copy ws1.range(ws1.UsedRange.Rows.Count + 1, DescCol)
You may have to flip the "Row, Col" references within Cells(), I can never remember which way they go, but IntelliSense in the VBE IDE will tell you.
In facts if you want just to use names, you can't do it in general, maybe in tables (select your column and add an array) but not sure...
to use something like this :
Sheet2.colname.copy Sheet1.colname.offset
you can use :
Sheet2.columns(index).copy Sheet1.columns(index).offset
Index is a number starting at 1, and you can find it with a simple For structure and then inject your result in your copies instructions! ;)
Here is a way to do it :
Sub MasterCopy()
Copy_Columns 0, 0
End Sub
Here is a routine that will help you use the function below (and you can reuse parameters if you want to unite them in only one routine)
Sub Copy_Columns(ByVal HorizontalOffset As Integer, ByVal VerticalOffset As Integer)
Dim ColCopy As Integer
Dim ColPaste As Integer
ColCopy = GetColName("SheetCopy", "ColToCopy")
ColPaste = GetColName("SheetPaste", "ColToPaste")
Sheets("SheetCopy").Columns(ColCopy).Copy Sheets("SheetPaste").Columns(ColPaste).Offset(VerticalOffset, HorizontalOffset)
End Sub
And so you can use that function everywhere to find your columns by name in a specific sheet
Public Function GetColName(ByVal SheetName As String, ByVal ColName As String)
For j = 1 To Sheets(SheetName).Cells(1, 1).End(xlToRight).Column
If LCase(Sheets(SheetName).Cells(1, j)) <> LCase(Column_Name) Then
Else
GetColName = j
Exit For
End If
Next j
If IsEmpty(GetColName) Then GetColName = 0
End Function
Enjoy! ;)

VBA code to hide a number of fixed discrete rows across a few worksheets

I'm for a solution to part of a macro I'm writing that will hide certain (fixed position) rows across a few different sheets. I currently have:
Sheets(Sheet1).Range("5:20").EntireRow.Hidden = True
To hide rows 5-20 in Sheet1. I also would like to hide (for arguements sake), row 6, row 21, and rows 35-38 in Sheet2 - I could do this by repeating the above line of code 3 more times; but am sure there's a better way of doing this, just as a learning exercise.
Any help much appreciated :)
Chris
Specify a Union of some ranges as follows
With Sheet1
Union(.Range("1:5"), .Rows(7), .Range("A10"), .Cells(12, 1)).EntireRow.Hidden = True
End With
Here is a try:
Sub hideMultiple()
Dim r As Range
Set r = Union(Range("A1"), Range("A3"))
r.EntireRow.Hidden = True
End Sub
But you cannot Union range from several worksheets, so you would have to loop over each worksheet argument.
This is a crude solution: no validation, no unhiding of existing hidden rows, no check that I have a sheet name as first parameter, etc. But it demonstrates a technique that I often find useful.
I load an array with a string of parameters relevant to my current problem and code a simple loop to implement them. Look up the sub and function declarations and read the section on ParamArrays for a variation on this approach.
Option Explicit
Sub HideColumns()
Dim InxPL As Integer
Dim ParamCrnt As String
Dim ParamList() As Variant
Dim SheetNameCrnt As String
ParamList = Array("Sheet1", 1, "5:6", "Sheet2", 9, "27:35")
SheetNameCrnt = ""
For InxPL = LBound(ParamList) To UBound(ParamList)
ParamCrnt = ParamList(InxPL)
If InStr(ParamCrnt, ":") <> 0 Then
' Row range
Sheets(SheetNameCrnt).Range(ParamCrnt).EntireRow.Hidden = True
ElseIf IsNumeric(ParamCrnt) Then
' Single Row
Sheets(SheetNameCrnt).Range(ParamCrnt & ":" & _
ParamCrnt).EntireRow.Hidden = True
Else
' Assume Sheet name
SheetNameCrnt = ParamCrnt
End If
Next
End Sub

pulling out data from a colums in Excel

I have the following Data in Excel.
CHM0123456 SRM0123:01
CHM0123456 SRM0123:02
CHM0123456 SRM0256:12
CHM0123456 SRM0123:03
CHM0123457 SRM0789:01
CHM0123457 SRM0789:02
CHM0123457 SRM0789:03
CHM0123457 SRM0789:04
What I need to do is pull out all the relevent SRM numbers that relate to a single CHM ref. now I have a formular that will do some thing like this
=INDEX($C$2:$C$6, SMALL(IF($B$8=$B$2:$B$6, ROW($B$2:$B$6)-MIN(ROW($B$2:$B$6))+1, ""), ROW(A1)))
however this is a bit untidy and I really want to produce this same using short vb script, do i jsut have to right a loop that will run though and check each row in turn.
For x = 1 to 6555
if Ax = Chm123456
string = string + Bx
else
next
which should give me a final string of
SRM0123:01,SRM123:02,SRM0256:12,SRM0123:03
to use with how i want.
Or is ther a neater way to do this ?
Cheers
Aaron
my current code
For x = 2 To 6555
If Cells(x, 1).Value = "CHM0123456" Then
outstring = outstring + vbCr + Cells(x, 2).Value
End If
Next
MsgBox (outstring)
End Function
I'm not sure what your definition of 'neat' is, but here is a VBA function that I consider very neat and also flexible and it's lightning fast (10k+ entires with no lag). You pass it the CHM you want to look for, then the range to look in. You can pass a third optional paramater to set how each entry is seperated. So in your case you could write (assuming your list is :
=ListUnique(B2, B2:B6555)
You can also use Char(10) as the third parameter to seperat by line breaks, etc.
Function ListUnique(ByVal search_text As String, _
ByVal cell_range As range, _
Optional seperator As String = ", ") As String
Application.ScreenUpdating = False
Dim result As String
Dim i as Long
Dim cell As range
Dim keys As Variant
Dim dict As Object
Set dict = CreateObject("scripting.dictionary")
On Error Resume Next
For Each cell In cell_range
If cell.Value = search_text Then
dict.Add cell.Offset(, 1).Value, 1
End If
Next
keys = dict.keys
For i = 0 To UBound(keys)
result = result & (seperator & keys(i))
Next
If Len(result) <> 0 Then
result = Right$(result, (Len(result) - Len(seperator)))
End If
ListUnique = result
Application.ScreenUpdating = True
End Function
How it works: It simple loops through your range looking for the search_string you give it. If it finds it, it adds it to a dictionary object (which will eliminate all dupes). You dump the results in an array then create a string out of them. Technically you can just pass it "B:B" as the search array if you aren't sure where the end of the column is and this function will still work just fine (1/5th of a second for scanning every cell in column B with 1000 unique hits returned).
Another solution would be to do an advancedfilter for Chm123456 and then you could copy those to another range. If you get them in a string array you can use the built-in excel function Join(saString, ",") (only works with string arrays).
Not actual code for you but it points you in a possible direction that can be helpful.
OK, this might be pretty fast for a ton of data. Grabbing the data for each cell takes a ton of time, it is better to grab it all at once. The the unique to paste and then grab the data using
vData=rUnique
where vData is a variant and rUnique is the is the copied cells. This might actually be faster than grabbing each data point point by point (excel internally can copy and paste extremely fast). Another option would be to grab the unique data without having the copy and past happen, here's how:
dim i as long
dim runique as range, reach as range
dim sData as string
dim vdata as variant
set runique=advancedfilter(...) 'Filter in place
set runique=runique.specialcells(xlCellTypeVisible)
for each reach in runique.areas
vdata=reach
for i=lbound(vdata) to ubound(vdata)
sdata=sdata & vdata(i,1)
next l
next reach
Personally, I would prefer the internal copy paste then you could go through each sheet and then grab the data at the very end (this would be pretty fast, faster than looping through each cell). So going through each sheet.
dim wks as worksheet
for each wks in Activeworkbook.Worksheets
if wks.name <> "CopiedToWorksheet" then
advancedfilter(...) 'Copy to bottom of list, so you'll need code for that
end if
next wks
vdata=activeworkbook.sheets("CopiedToWorksheet").usedrange
sData=vdata(1,1)
for i=lbound(vdata) + 1 to ubound(vdata)
sData=sData & ","
next i
The above code should be blazing fast. I don't think you can use Join on a variant, but you could always attempt it, that would make it even faster. You could also try application.worksheetfunctions.contat (or whatever the contatenate function is) to combine the results and then just grab the final result.
On Error Resume Next
wks.ShowAllData
On Error GoTo 0
wks.UsedRange.Rows.Hidden = False
wks.UsedRange.Columns.Hidden = False
rFilterLocation.ClearContents