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07.14.2008 at 08:18AM PDT, ID: 23562887
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8.5

VBA - How to compare a column in a multi-dimension array to determine if it exists in a dictionary object? If not, then delete entire row?

Asked by Shino_skay in Microsoft Excel Spreadsheet Software, Visual Basic Programming, VB Objects

Tags: , ,

Hi everyone.

           I'm trying to convert an excessive redundant excel formula sheet to vba. This first step needed is to take the source data and in column 4 where all the trader books are located, I need to delete the entire row if the books do not match a list of 85 books.  

I successfully managed to load the reference list of 85 books into a Dictionary Object. I wrote the dicionary object back to the worksheet to confirm that it works. I  also created a multidimensional array (1 to # of rows, 1 to # of columns). The columns of my source dats is always 6, but the rows flucuate weekly.

What I have in mind was to somehow lookup column 4 in the array and see if it exist in the dictionary, if it doesn't, delete the entire row (in array form) and I guess redim the array size when I'm done.

The easiest way I thought of is to write the array onto a worksheet then use the delete.row command, then sort and transfer into the array. That way seems a bit redundant and inefficient. Could someone please assist? I've included my code below.

FYI, there are codes written below just to paste the dictionary and array onto a worksheet. I had to test my work since I'm still rather new. Please ignore. Thanks.Start Free Trial
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Option Explicit
Dim refWorksheet As Worksheet, srcWorksheet As Worksheet, trgWorksheet As Worksheet
Dim intRefTotalBooks As Integer, intRefLctOffColumn As Integer, intRefTotalColumns As Integer
Dim intSrcTotalColumns As Integer, intSrcBookColumn As Integer, intSrcTotalBooks As Integer
Dim rngRefLctOffShore As Range, rngSrcBooks As Range
Option Base 1
Sub BookEliminateTest()
 
Set refWorksheet = Sheet1
Set srcWorksheet = Sheet2
Set trgWorksheet = Sheet3
 
'Find the columns and hidden selecting them
intRefTotalColumns = refWorksheet.Columns.Rows(1).SpecialCells(xlCellTypeConstants, xlTextValues).Count
intRefLctOffColumn = refWorksheet.Cells(1, 1).Resize(1, intRefTotalColumns).Find("OFF_Shore_Books", LookIn:=xlValues, lookat:=xlWhole).Cells.Column
intRefTotalBooks = refWorksheet.Columns(intRefLctOffColumn).Rows.SpecialCells(xlCellTypeConstants, xlTextValues).Count
intSrcTotalColumns = srcWorksheet.Columns.Rows(1).SpecialCells(xlCellTypeConstants, xlTextValues).Count
intSrcBookColumn = srcWorksheet.Cells(1, 1).Resize(1, intSrcTotalColumns).Find("Book", LookIn:=xlValues, lookat:=xlWhole).Cells.Column
intSrcTotalBooks = srcWorksheet.Columns(intSrcBookColumn).Rows.SpecialCells(xlCellTypeConstants, xlTextValues).Count
 
'Dictionary setup for Reference
Dim dicOffBooks 'Declaring dictionary object
Dim strOffBooks As String 'declaring books variable as string
Dim i As Integer
Set dicOffBooks = CreateObject("Scripting.Dictionary")
 
'Go through the reference sheet and add all the books to the dictionary
i = 1
Do
        strOffBooks = refWorksheet.Cells(i + 1, intRefLctOffColumn).Value
        dicOffBooks.Add i, strOffBooks
        i = i + 1
Loop Until IsEmpty(refWorksheet.Cells(i + 1, intRefLctOffColumn).Value) 'loop the inx until the cells are empty
 
'Dictionary retrieval methods
Dim dicOffBooksItems, dicOffBooksKeys, dicOffBooksItemsCount
Dim lngDicItemsCount As Long
 
dicOffBooksKeys = dicOffBooks.keys
dicOffBooksItems = dicOffBooks.items
dicOffBooksItemsCount = dicOffBooks.Count
lngDicItemsCount = dicOffBooksItemsCount
 
'Set rngSrcBooks = srcWorksheet.Cells(2, intSrcBookColumn).Resize(intSrcTotalBooks - 1)
Set rngSrcBooks = srcWorksheet.Cells(2, 1).Resize(intSrcTotalBooks - 1, intSrcTotalColumns)
Dim arrSrcTotalBooks() As Variant
 
ReDim arrSrcTotalBooks(1 To intSrcTotalBooks, 1 To intSrcTotalColumns)
 
arrSrcTotalBooks = rngSrcBooks.Value
trgWorksheet.Cells(1, 1).Resize(intSrcTotalBooks - 1, intSrcTotalColumns).Value = arrSrcTotalBooks
[+][-]07.14.2008 at 12:07PM PDT, ID: 22001006

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[+][-]07.14.2008 at 02:44PM PDT, ID: 22002397

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About this solution

Zones: Microsoft Excel Spreadsheet Software, Visual Basic Programming, VB Objects
Tags: Microsoft, excel, excel 2002
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Solution Provided By: TRobinJames
Participating Experts: 2
Solution Grade: A
 
 
[+][-]07.14.2008 at 09:37PM PDT, ID: 22004183

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[+][-]07.15.2008 at 07:21AM PDT, ID: 22007271

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[+][-]07.15.2008 at 07:38AM PDT, ID: 22007430

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[+][-]07.15.2008 at 07:57AM PDT, ID: 22007650

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