Read range of data line by line which is increasing dynamically - excel

I need to read or clear all the line in specific range which will be increasing dynamically.
Problem is "Selected File List" table range is not specified. New file chosen with browse will be added to "Selected File List" dynamically. Number of file can't be predicted.
What I've tried so far is, keep track of the browse button click and add the file path to arraylist.
After that, (Row number 9 which is start line + arraylist size) to get the number of line of end of the table.
But due to some requirement, I want to read the file from excel file. Something like -Read until found blank line or border bottom or something.
I'm new to VBA and I'm not so sure what I'm doing with vba codes so please be kind :D
Any input would be greatly appreciated. Thanks for your precious time.

Provided there is no blank cell within the list of files, you could give the heading cell ("Selected File List") a name, e.g. "SelFiles" and do something like this ...
Sub Test()
' call the function
Debug.Print getSize(Range("SelFiles"), True)
End Sub
Function getSize(MyRange As Range, Optional HasHeader As Boolean = False)
Dim Idx As Integer
Idx = 2
Do While MyRange(Idx, 1) <> ""
Idx = Idx + 1
Loop
If HasHeader Then
getSize = Idx - 2
Else
getSize = Idx - 1
End If
End Function
The function uses a bit of abstraction, you can use it for ranges including / excluding ranges. You may have other areas in your application where you need to count rows, so the use of a function is preferred to just adding the loop into the code of your main Sub().

Related

LibreOffice Basic Ignoring “some” of my Type...End Type Definition

I'm using LibreOffice Version: 4.4.3.2 Build ID: 40m0(Build:2) Locale: en_AU
I have a Basic Module
At the top of this module before any sub or functions I have
Type InitHeadings
MySort_By As Integer
MyCharacter As Integer
MyInitiative As Integer
MyRolled As Integer
MyTotal As Integer
End Type
...
Global InitiativeColumn As New InitHeadings
But when I run a sub, set a breakpoint and 'watch' the InitiativeColumn Object only the first two fields are shown.
The rest of my code relevant to this struct as the documentation calls them is below. I don't reference it anywhere else. Can anyone tell me why the first two would work but not the rest? I have two other structs in this code and both also ignore the last three fields. Is this a Bug?
Sub Main
'Initialise Doc and Sheet Objects
Dim Doc As Object
Doc = ThisComponent
StatsSheet = Doc.Sheets.getByName("Stats")
InitiativeSheet = Doc.Sheets.getByName("Initiative")
CombatSheet = Doc.Sheets.getByName("Combat")
'LOAD HEADING NAMES
'Initiative Sheet
For Column = 0 to 25 'Columns A to Z
MyHeadingName = InitiativeSheet.getCellByPosition(Column,0).String
Select Case MyHeadingName
Case "Sort By"
InitiativeColumn.MySort_By = Column
Case "Character"
InitiativeColumn.MyCharacter = Column
Case "Initiative"
InitiativeColumn.MyInitiative = Column
Case "Rolled"
InitiativeColumn.MyRolled = Column
Case "Total"
InitiativeColumn.MyTotal = Column
End Select
Next Column
End Sub
Sub MyInitiativeButton
'Iterate over a range of cells:
For Row = 1 To 25 'Rows 2 to 26
'Column 3 is column D the "Rolled" column
InitiativeSheet.getCellByPosition(InitiativeColumn.MyRolled,Row).VALUE = Roledice(1,20,0)
Next Row
End Sub
It looks like a bug, and seems to have been reported here. The problem did not occur when I tested it in a newer version (LO 5.1.0.3).
This is only an issue for the debugger window. The values are still there:
Sub TestStructs
InitiativeColumn.MySort_By = 5
InitiativeColumn.MyCharacter = 5
InitiativeColumn.MyTotal = 5
InitiativeColumn.DoesntExist = 5
End Sub
This code works fine until the line InitiativeColumn.DoesntExist = 5, whereupon it crashes.
Now the Global problem that you mentioned in the comments is really a problem. Considering the standard programming advice that global variables are bad, I think it's wise to consider alternatives.
Instead of a subroutine, could you perhaps use a Function that returns InitiativeColumn? If not, then assigning the variable as you suggested seems a viable workaround. Personally for LO macros I prefer Python or Java since they have classes.

Find last row in CSV database from Excel VBA

I am reading a .csv database in excel, because I am using an external database.
I dont want to copy anything into the excel application, I either want to read from the database(and maybe change some values), or add to it.
I have a textbox in a userform that should get the value of the last entry in "column" A(A reference number), and add one to it(this is for the next entry in the database).
I want to find the last row in a semicolon split CSV database using excel VBA.
Here is what I have so far:
Dim FilePath As String
FilePath = "L:\database.csv"
Open FilePath For Input As #1
Do While Not EOF(1)
linenumber = linenumber + 1
Line Input #1, Line
arrayOfElements = Split(Line, ";")
elementnumber = 0
testValue = arrayOfElements(0)
If testValue = "L51599" Then
refnr.Text = testValue
Else
'do nothing
End If
Loop
Close #1
Any tips?
Thanks
There are 5 different ways to that here : http://www.thespreadsheetguru.com/blog/2014/7/7/5-different-ways-to-find-the-last-row-or-last-column-using-vba.
Be aware of the fact that CSV files are not excel files and they cannot contain custom VBA functions (Macros). You will have to create your "findLastRow" function in a global template and assign it to a custom button on one of the toolbars/ribbons. this is explained here : https://msdn.microsoft.com/en-us/library/office/ee767705(v=office.14).aspx.
good luck!

Excel saves file, but throws error on opening it: "We found a prob-lem with some content in …"

I was able to save a workbook, but then when I reopened it, Excel complained, "We found a problem with some content in 'filename'. Do you want us to try to recover as much as we can? If you trust the source of this workbook, click Yes."
"Yes" (i.e., recover) causes offending Drawings/Shapes/Charts to be deleted.
The following describes the cause of my problem and its cure.
I had a user-defined worksheet function (UDF) that returned an array of values that was displayed in a chart.
The UDF was setting some of these values to the impossible value of 2.69653970229349E+308 (apparently a dll was returning 1.#QNAN which Excel turned into 2.69653970229349E+308).
Amazingly, Excel allowed this value to be saved in the cell, and the workbook to be saved. However, when opening the workbook, the error was received, and the offending chart was deleted during the "recovery".
The cure was to ensure only realistic values are displayed in a chart.
Here is code redacted from the rather large VBA project.
'Global array, Values returned by the UDF
Public MainReturnValues(1 To 57, 1 To 2) As Variant
Public Function MainWorksheetFunction( _
i_rRangeWithInputData As Range _
) As Variant
'[... Process input data ...]
'Load global array MainReturnValues(,), i.e., values returned by the UDF
LoadMainWorksheetFunctionReturnValues
'Now load UDF return values
MainWorksheetFunction = MainReturnValues
End Function
'Load global array MainReturnValues(,), i.e., values returned by the UDF
Private Function LoadMainWorksheetFunctionReturnValues( _
) As Boolean
Dim l_vErrNull As Variant
Dim l_dChartXs(1 To 57) As Double, _
l_dChartYs(1 To 57) As Double
Dim c As Long, _
r As Long
'~~~~~~~ First fill area with xlErrNull to Prevent Log Chart Graphing 0 Errors
'~~~~~~~ Excel will "pick up the pen" when cells contain CVErr(xlErrNull)
l_vErrNull = CVErr(xlErrNull)
For r = LBound(MainReturnValues, 1) To UBound(MainReturnValues, 1)
For c = LBound(MainReturnValues, 2) To UBound(MainReturnValues, 2)
MainReturnValues(r, c) = l_vErrNull
Next c
Next r
'~~~~~~~ End First fill area with xlErrNull ~~~~~~~
'[... Load values into l_dChartXs() and l_dChartYs() using C# dll ...]
For r = 1 To 57
'Don't try to plot ridiculous values. I suspect this causes this error:
'"We found a problem with some content in 'aaa.xlsb'. Do you want us to try to recover as much as we can? If you trust the source of this workbook, click Yes."
On Error Resume Next 'Catch 1.#QNAN
If ((l_dChartXs(r) > 1E+308) Or (l_dChartYs(r) > 1E+308)) Then
Else 'Value is not ridiculous
On Error GoTo 0
'Xs in first column
MainReturnValues(r, 1) = l_dChartXs(r)
'Ys in second column
MainReturnValues(r, 2) = l_dChartYs(r)
End If
Next r
LoadMainWorksheetFunctionReturnValues = True
Exit Function
I hope this helps someone.
I tried looking solution for this all over the internet ,My Workbook was rather simple system generated .xls file with no shapes and chart,
Excel was able to save it as .xlsx but was unable to open it without recovering contents
I end up saving file as CSV and then later saved that CSV as xlsx
I thought since CSV is almost like a text file with comma seprated values this might work for simple sheets with values

Please assist with writing a Macro to clean up data entries

Quick question that should be easy enough for a lot of you but I'm not well versed in VBA or code in general for that matter but I have a problem that only a Macro or piece of VBA code can resolve for me. I have to edit a large number of data entries in a spreadsheet, cell by cell.
So on to the question. Could you please show me an example or provide a complete macro for me to use to edit these cells?
The editing that I require is as follows:
I need to read each cell in the following range: B2 to Q383. A typical entry that needs to be examined and edited looks like this: 629.64\3.00\01:30
What needs to happen now is for everything to the left of the first "\" and everything to the right of the second "\" needs to be removed, including the "\", from each cell.
I've tried fiddling around with the LEFT and RIGHT commands and I can output the data that needs to be removed from the cells with something like this
=left(B11, Find("\", B11) - 1)
So what would be the delete command in a macro to target that data selection in that cell? Or how do I use a delete command with those parameters?
Thanks in advance for any advice or answers!
Not 100% sure what you're after - you say you want to remove the bits from the left and right, but the formula returns the bit on the left.
Anyway, here's 3 formula to do it:
Left: =TRIM(LEFT(B11,FIND("\",B11)-1))
Middle: =LEFT(MID(B11,FIND("\",B11)+1,LEN(B11)),FIND("\",MID(B11,FIND("\",B11)+1,LEN(B11)))-1)
Right: =MID(B11,FIND("\",SUBSTITUTE(B11,"\","~",1))+1,LEN(B11))
And three VBA functions to do it
(use these as you would formula - =leftbit(B11), or if you're looking for something other than backslashes - =leftbit(B11,"|") will find the I-bar as a divider. )
Public Function LeftBit(target As Range, Optional Divider As String = "\") As String
LeftBit = Trim(Left(target, InStr(target, Divider) - 1))
End Function
Public Function MiddleBit(target As Range, Optional Divider As String = "\") As String
Dim First As Long, Second As Long
First = InStr(target, Divider)
Second = InStr(First + 1, target, Divider)
MiddleBit = Mid(target, First + 1, Second - First - 1)
End Function
Public Function RightBit(target As Range, Optional Divider As String = "\") As String
RightBit = Right(target, Len(target) - InStrRev(target, Divider))
End Function

Extract tables from pdf (to excel), pref. w/ vba

I am trying to extract tables from pdf files with vba and export them to excel. If everything works out the way it should, it should go all automatic. The problem is that the table are not standardized.
This is what I have so far.
VBA (Excel) runs XPDF, and converts all .pdf files found in current folder to a text file.
VBA (Excel) reads through each text file line by line.
And the code:
With New Scripting.FileSystemObject
With .OpenTextFile(strFileName, 1, False, 0)
If Not .AtEndOfStream Then .SkipLine
Do Until .AtEndOfStream
//do something
Loop
End With
End With
This all works great. But now I am getting to the issue of extracting the tables from the text files.
What I am trying to do is VBA to find a string e.g. "Year's Income", and then output the data, after it, into columns. (Until the table ends.)
The first part is not very difficult (find a certain string), but how would I go about the second part. The text file will look like this Pastebin. The problem is that the text is not standardized. Thus for example some tables have 3-year columns (2010 2011 2012) and some only two (or 1), some tables have more spaces between the columnn, and some do not include certain rows (such as Capital Asset, net).
I was thinking about doing something like this but not sure how to go about it in VBA.
Find user defined string. eg. "Table 1: Years' Return."
a. Next line find years; if there are two we will need three columns in output (titles +, 2x year), if there are three we will need four (titles +, 3x year).. etc
b. Create title column + column for each year.
When reaching end of line, go to next line
a. Read text -> output to column 1.
b. Recognize spaces (Are spaces > 3?) as start of column 2. Read numbers -> output to column 2.
c. (if column = 3) Recognize spaces as start of column 3. Read numbers -> output to column 3.
d. (if column = 4) Recognize spaces as start of column 4. Read numbers -> output to column 4.
Each line, loop 4.
Next line does not include any numbers - End table. (probably the easiet just a user defined number, after 15 characters no number? end table)
I based my first version on Pdf to excel, but reading online people do not recommend OpenFile but rather FileSystemObject (even though it seems to be a lot slower).
Any pointers to get me started, mainly on step 2?
You have a number of ways to dissect a text file and depending on how complex it is might cause you to lean one way or another. I started this and it got a bit out of hand... enjoy.
Based on the sample you've provided and the additional comments, I noted the following. Some of these may work well for simple files but can get unwieldy with bigger more complex files. Furthermore, there may be slightly more efficient methods or tricks to what I have used here but this will definitely get you going an achieve the desired outcome. Hopefully this makes sense in conjunction with the code provided:
You can use booleans to help you determine what 'section' of the text file you are in. Ie use InStr on the current line to
determine you are in a Table by looking for the text 'Table' and then
once you know you are in the 'Table' section of the file start
looking for the 'Assets' section etc
You can use a few methods to determine the number of years (or columns) you have. The Split function along with a loop will do
the job.
If your files always have constant formatting, even only in certain parts, you can take advantage of this. For example, if you know your
file line will always have a dollar sign in front of the them, then
you know this will define the column widths and you can use this on
subsequent lines of text.
The following code will extract the Assets details from the text file, you can mod it to extract other sections. It should handle multiple rows. Hopefully I've commented it sufficient. Have a look and I'll edit if needs to help out further.
Sub ReadInTextFile()
Dim fs As Scripting.FileSystemObject, fsFile As Scripting.TextStream
Dim sFileName As String, sLine As String, vYears As Variant
Dim iNoColumns As Integer, ii As Integer, iCount As Integer
Dim bIsTable As Boolean, bIsAssets As Boolean, bIsLiabilities As Boolean, bIsNetAssets As Boolean
Set fs = CreateObject("Scripting.FileSystemObject")
sFileName = "G:\Sample.txt"
Set fsFile = fs.OpenTextFile(sFileName, 1, False)
'Loop through the file as you've already done
Do While fsFile.AtEndOfStream <> True
'Determine flag positions in text file
sLine = fsFile.Readline
Debug.Print VBA.Len(sLine)
'Always skip empty lines (including single spaceS)
If VBA.Len(sLine) > 1 Then
'We've found a new table so we can reset the booleans
If VBA.InStr(1, sLine, "Table") > 0 Then
bIsTable = True
bIsAssets = False
bIsNetAssets = False
bIsLiabilities = False
iNoColumns = 0
End If
'Perhaps you want to also have some sort of way to designate that a table has finished. Like so
If VBA.Instr(1, sLine, "Some text that designates the end of the table") Then
bIsTable = False
End If
'If we're in the table section then we want to read in the data
If bIsTable Then
'Check for your different sections. You could make this constant if your text file allowed it.
If VBA.InStr(1, sLine, "Assets") > 0 And VBA.InStr(1, sLine, "Net") = 0 Then bIsAssets = True: bIsLiabilities = False: bIsNetAssets = False
If VBA.InStr(1, sLine, "Liabilities") > 0 Then bIsAssets = False: bIsLiabilities = True: bIsNetAssets = False
If VBA.InStr(1, sLine, "Net Assests") > 0 Then bIsAssets = True: bIsLiabilities = False: bIsNetAssets = True
'If we haven't triggered any of these booleans then we're at the column headings
If Not bIsAssets And Not bIsLiabilities And Not bIsNetAssets And VBA.InStr(1, sLine, "Table") = 0 Then
'Trim the current line to remove leading and trailing spaces then use the split function to determine the number of years
vYears = VBA.Split(VBA.Trim$(sLine), " ")
For ii = LBound(vYears) To UBound(vYears)
If VBA.Len(vYears(ii)) > 0 Then iNoColumns = iNoColumns + 1
Next ii
'Now we can redefine some variables to hold the information (you'll want to redim after you've collected the info)
ReDim sAssets(1 To iNoColumns + 1, 1 To 100) As String
ReDim iColumns(1 To iNoColumns) As Integer
Else
If bIsAssets Then
'Skip the heading line
If Not VBA.Trim$(sLine) = "Assets" Then
'Increment the counter
iCount = iCount + 1
'If iCount reaches it's limit you'll have to redim preseve you sAssets array (I'll leave this to you)
If iCount > 99 Then
'You'll find other posts on stackoverflow to do this
End If
'This will happen on the first row, it'll happen everytime you
'hit a $ sign but you could code to only do so the first time
If VBA.InStr(1, sLine, "$") > 0 Then
iColumns(1) = VBA.InStr(1, sLine, "$")
For ii = 2 To iNoColumns
'We need to start at the next character across
iColumns(ii) = VBA.InStr(iColumns(ii - 1) + 1, sLine, "$")
Next ii
End If
'The first part (the name) is simply up to the $ sign (trimmed of spaces)
sAssets(1, iCount) = VBA.Trim$(VBA.Mid$(sLine, 1, iColumns(1) - 1))
For ii = 2 To iNoColumns
'Then we can loop around for the rest
sAssets(ii, iCount) = VBA.Trim$(VBA.Mid$(sLine, iColumns(ii) + 1, iColumns(ii) - iColumns(ii - 1)))
Next ii
'Now do the last column
If VBA.Len(sLine) > iColumns(iNoColumns) Then
sAssets(iNoColumns + 1, iCount) = VBA.Trim$(VBA.Right$(sLine, VBA.Len(sLine) - iColumns(iNoColumns)))
End If
Else
'Reset the counter
iCount = 0
End If
End If
End If
End If
End If
Loop
'Clean up
fsFile.Close
Set fsFile = Nothing
Set fs = Nothing
End Sub
I cannot examine the sample data as the PasteBin has been removed. Based on what I can glean from the problem description, it seems to me that using Regular Expressions would make parsing the data much easier.
Add a reference to the Scripting Runtime scrrun.dll for the FileSystemObject.
Add a reference to the Microsoft VBScript Regular Expressions 5.5. library for the RegExp object.
Instantiate a RegEx object with
Dim objRE As New RegExp
Set the Pattern property to "(\bd{4}\b){1,3}"
The above pattern should match on lines containing strings like:
2010
2010 2011
2010 2011 2012
The number of spaces between the year strings is irrelevant, as long as there is at least one (since we're not expecting to encounter strings like 201020112012 for example)
Set the Global property to True
The captured groups will be found in the individual Match objects from the MatchCollection returned by the Execute method of the RegEx object objRE. So declare the appropriate objects:
Dim objMatches as MatchCollection
Dim objMatch as Match
Dim intMatchCount 'tells you how many year strings were found, if any
Assuming you've set up a FileSystemObject object and are scanning the text file, reading each line into a variable strLine
First test to see if the current line contains the pattern sought:
If objRE.Test(strLine) Then
'do something
Else
'skip over this line
End If
Set objMatches = objRe.Execute(strLine)
intMatchCount = objMatches.Count
For i = 0 To intMatchCount - 1
'processing code such as writing the years as column headings in Excel
Set objMatch = objMatches(i)
e.g. ActiveCell.Value = objMatch.Value
'subsequent lines beneath the line containing the year strings should
'have the amounts, which may be captured in a similar fashion using an
'additional RegExp object and a Pattern such as "(\b\d+\b){1,3}" for
'whole numbers or "(\b\d+\.\d+\b){1,3}" for floats. For currency, you
'can use "(\b\$\d+\.\d{2}\b){1,3}"
Next i
This is just a rough outline of how I would approach this challenge. I hope there is something in this code outline that will be of help to you.
Another way to do this I have some success with is to use VBA to convert to a .doc or .docx file and then search for and pull tables from the Word file. They can be easily extracted into Excel sheets. The conversion seems to handle tables nicely. Note however that it works on a page by page basis so tables extending over a page end up as separate tables in the word doc.

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