Slow For Loop With IF Statment
Nov 23, 2009
why the code below is very slow with the extra if statment in it (marked with **) i have googled around and found that my for staments are correct i have tried screen updating etc. i have added a timer to see what diffrence it makes, what i have is 3 sheets 1st has about 100 rows with a number and time same as second but that only has 2 rows of the same the 3rd sheet has about 100 rows of just a number what the code does is loop through the 3rd sheet (build list) when it finds a number it looks on the first sheet to find the same number then gets the data in the second coloum and so on until it reaches a cell that says stop.
i have added a button to start this process, with the ** line in it takes 311 seconds with out it it takes 0.17 seconds
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Jan 10, 2007
Need some alternative code that would speed the execution of this macro. My weak attempt runs noticeably SLOW.
Dim cell As Range
For Each cell In Range("TPD")
If IsNumeric(cell) And Not IsEmpty(cell) Then
If cell.Value > 0 Then
cell.EntireColumn.Hidden = False
Else
cell.EntireColumn.Hidden = True
End If
End If
On Error Goto 0
Next
End Sub
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Nov 18, 2006
Going through a loop, I am trying to load pictures into an image box (or alternatively into a label) one by one i.e. going through the loop the first time, I want to load picture 1, then on the second loop, picture 2 and so on. A bit like an automated slide show.
I have written a simple loop and have used the loadpicture function to load the picture into the image box. When the code runs, the image box only gets populated after the last run through the loop. I have tried using application.screen updating function and the image.activate function without success. It is a simple bit of code and I expect an easy problem to solve if you know excel vba well.
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Jan 19, 2009
Ok ive been playing about with excel for the past week to get a spreadsheep up and running so i can see the totals of some things and now its getting a little complecated for me (ive done the easy stuff lol)
Ok here is the situation and i'll try and explain what im doing as best as i can. Im trying to make a spreadsheet that shows how much a resorce can be refined so lets say in a1 to c1 i have 400 in each but i can mix a with b and b with c at the ratio of every 20 of a and c to ever 10 of b
so somewhere in my spread sheet id have the result 20 and 20 as products ato c can make 20 of product d and e i hope that makes sence?
for every 20 + 10 of a(400)+b(400) = 20
and for every 20 + 10 of c(400)+b(400) = 20
so if i had 600 300 600 instead of 400 i can only make 30 of product d of e (id have to choose)
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Oct 22, 2004
I need to format the background color of a row using an if statement or something similar. If have a certain cell has a specific value I want the entire row that the cell is on to have a specific background color.
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Sep 5, 2008
How can I write the equivelant of an if(and( statment in VB? What I would imaging it would look like is this...
If _________ = true
AndIf ________ = true Then
____________
End if
It seems like this should be simple, but after searching, and searching the help files, the internet, and this website, I am no closer to figuring this out.
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Apr 7, 2009
I have another question with my red sox scores excel sheet. On my overview I want to be able to select any team, and view the indiviual stats against them. For the life of me I dont' know/can't find how to even do a simple yes no if statment to what the value in the drop down menu box is.
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Jan 9, 2009
I don't even know if using the IF statement is the right function, but anyway. I am using VLOOKUP to complete a supply list, but of course if the supply name isn't on the first spreadsheet then the result is NA. Instead I want it to return 0.
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Jul 16, 2008
I would like to check whether 2 conditions are satisfy in an if statement. One condition is of data type text and it is stored in a variable calls search1 whereas the other condition is of data type date and i intend to store into a variable calls search2. Could someone tell how to put search 2 into the below code. Basically, i want it to be like
if Cell A is equal to search1 and CellB is equal to search2 then
return value that is associated with the search in cell c
ActiveSheet.Cells(r, 13).FormulaArray = "=MIN(IF(Sheet1!$A$1:$A$20=""" & search1& """,Sheet1!$C$1:$C$20))"
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Jun 8, 2006
I have a list of codes. Some of them may be duplicated. I want to use the conditional formatting and the IF statement to highlight in a particular colour any codes that have appear twice or more. I used to know how to do this but now I cannot get it right.
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Jan 11, 2009
I have been trying to get a formatting programme to work for well over a week and no matter what I try I seem destined to fail. I am trying to use an IF statement in VBA to format a cell if the result of the IF is true. The values in the cells being formatted have been generated from a VLOOKUP statment (looking at a table on another sheet of the workbook). I have tried to use conditional formatting but cannot get past the limit of 3 conditions.
Note in the code below I have values that may appear the same but to make them unique they have a single (or double) space before and after the character. Not sure if the code I have below is workable, if anyone has a better idea please let me know (its a little long winded). I am currently self learning VBA (through forums and the like) and below is the best I have come up with... however when I try to run it I only get a Run-time error 1004, application-defined or object defined error.
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Sep 3, 2009
I would like for the If statment to hide multiple labels and buttons. How can I add more than one condition after Else:?
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May 31, 2009
I am trying to use an IF statment to look at 2 values, 1 from a defined range and the second based on offsetting the the first to Format a number of cells with a worksheet. Affectivley if the First Value is "E" and the value two columns to the left is a Sat or Sun I wish to format the row slightly differently from if it is a weekday. (There will be an M and a L as well)
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Jul 8, 2006
If you look in the file you will see a records sheets and a form sheet. I want to see if a record has been broken. All the times are in seconds and the distances are in centimeters. How can I find a certain row, compare and act based on an if statment?
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Apr 22, 2009
I decided to try to change it into a Case Statement. Here is what I have now. But the problem seems to be this time at this line: When I have "01" in C5 the script just keeps going?
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Mar 31, 2008
With Sheets("regrade pharm_standalone")
For Each r In .Range("standaloneTerritory")
If r.Value = "X101" Then
r.EntireRow.Copy
Sheets("X101").Range("A1").End(xlDown).Offset(1).PasteSpecial xlPasteValues
End If
Next r
End With
-------------------
I need to repeat this loop for values from X101 to X151. In all cases, the sheet name is equal to the value I'm looking up (eg: value = X102 goes to sheet X102).
I have a named range called 'territories' that contains the list of X101 -> X152.
I'm hoping to make the code perform the loop for each of the territories without my having to copy & paste and change the 'X101' 51 times as this would seem a rather silly thing to do!
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Mar 30, 2009
I have a workbook made up of worksheets containing source data, pivot tables and charts but it is now becoming very slow since I have added a worksheet with many formulas.
If I move that worksheet containing many formulas (20 columns by 150 rows) to a different workbook will that help speed both of them up? The formulas will obviously still by referring to the original workbook.
Or is it simply by using formulas it slows things down whatever you do and I will have to think of a clever way of using pivot tables instead? Are there any other things that could be slowing it down? Other workbooks I maintain are fine.
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Dec 5, 2009
I got a work sheet with 672 columns of information that im trying to cross compare against. I wanna compare each column against every other column in that row. I have 200 rows of data. That means each i need excel to do 226,128 comparion calculations each row. So that means in the entire work sheet its gotta do 91 million comparisons. Im on a dual core 1.8ghz core 2 duo cpu and 2 gigs of ram on xp pro with excel 2007. I even bumped up my virtual memory by 3 times the size it was yet still its taking forever.
Its taking over 3 hours to do this whole page of calculations. So i opened up visual c++ and quickly programmed in the same code with some generic values and within 3 seconds it computed it all. My guess is that the bottle neck is when excel has retrieve data from the cells because other than that i cant figure out why its so slow. Heres a section of my
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Nov 14, 2006
My spreadsheet is chugging through the following code. The data being filtered is rows A:AC, rows 10:193 (so not an absurdly large amount of data). It takes about 15 seconds to complete the filter. Ideas?
Private Sub EuropeButton_Click()
HeaderRegion = "Europe"
ActiveSheet.AutoFilterMode = False
Range("A2:A8").Value = 0
Range("A2").Value = "TEG"
Range("A3").Value = "TUK"
Range("A4").Value = "TEF"
Range("A10").CurrentRegion.AdvancedFilter Action:=xlFilterInPlace, CriteriaRange:= _
Range("A1:A4"), Unique:=False
If Columns("E:F").Hidden = True Then
Columns("E:F").Hidden = False
End If
End Sub
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Mar 14, 2007
I'm rather new at VBA
I have a small workbook with a userform and some buttons. Each time I press a button a counter increases and the workbook is saved.
This saving seems much too long for such a small file.
I use
Activeworkbook. save
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Mar 19, 2007
I'm working working with this spreadsheet that is moving incredibly slow. Every time I enter anything, it takes anywhere from 10 seconds, to a couple minutes to calculate and let me proceed. It is a pretty big file (4.60 MB), but I also work with another spreadsheet that is a little smaller (2.95 MB) that has never taken more than a fraction of a second to calculate anything. What could I do to spead up the spreadsheet?
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Sep 24, 2009
This module consists of app. 25 sub routines. Every sub routine is a For-Next Loop, with 70 For-Nexts to work through. The loops check certain input cells and if these cells are empty, the row is hidden. I have the reverse also where I can unhide these rows.
When I had about 8 of these loops in this module, it would work quite fast and it took about a second to run one of these subs. Now that I have 25 if I run one of these subs it takes about 20-30 seconds.
Before I break them all down into individual modules just to find out it doesn't work, is there anything else I should be doing or could try to speed these subs up? If breaking them down into more than one module is the solution, how do I do this best?
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Nov 10, 2009
I have a function grabbing latitudes and longitudes from a zip code look up. The table array used is approximately 48k rows.
Is there a way to speed up the lookup?
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Aug 27, 2007
I have a workbook with macros Ive created that have been running just fine for 2 years now. Ive upgraded to a top of the line new Dell D830 dual core laptop with 2gb ram and installed excel 2003 (same excel as always). Certain macros that used to take a second or two to run on a celeron dell now take 3min's! Ive stepped through the code in debug mode and found that its hanging up in simple areas like "Columns("A:A").Select" and "Selection.ClearContents". We have 16 older laptops running these exact codes just fine all day long and the 2 new fast computers with core 2 duo processors are hanging up constantly in the same places in code. Ive gone through and made sure all the "option" settings are identical in excel. Is there some system setting That I'm missing or possibly an excel setting That I may have overlooked?
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Jul 8, 2009
I have searched the forums re my issue and have not found a relevant solution. I have a large workbook 19MB in Excel 2007. There are 400 sheets and each sheet contains various formulas and one macro. The only graphics on each sheet are color coding of some cells. The workbook takes 2minutes 55 secs to load. Once open there are no issues. Is there a reason why this is so slow or do I just have to accept that being a large file it will take this long. There is no issue with HD space or RAM as the laptop is only used specifically for this workbook. Running Intel Core 2 Duo, 160 HDD, 2mb ram.
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Aug 24, 2009
I have a relatively complex application with a few thousand cell links and dozens of VBA macros (3.5 MB heavy). This application (one file for each project) is used by a few hundred users in about 200 projects.
What I did recently (to allow updating macro program functionality in existing files) is to move all macros into an add-in.
What happens now is every time when I change the content of any cell anywhere in the file, it takes about 3 seconds(!) to leave the cell after changing it and to jump into the one below.
Of course I'm getting complaints from users about this slow behaviour.
This also applies to cells in sheets that have no event macro program related to them.
It applies as well to cells that are not referenced in any other cell.
I tried changing the calculation method from automatic to manual - no change in speed.
I de-activated the add-in - no change in speed.
I have checked if there are any formulas that contain the today() or function or the like - there are none (actually, I had replaced them with links to a cell that contains today's date, which is automatically updated when the file is opened, but this was also this way in the previous version).
It seems that there is something going on that causes Excel to be busy with itself.
Does anyone know what might cause this strange behaviour?
I tried everything I could think of without success and I'm lost now.
We are using Excel 2003 in an XP Professional SP2 environment and most of our computers have 512 MB RAM.
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Dec 17, 2009
i had a file with 10,500 lines, 18,000 kb and it seemed slow to load (about a minute) every time i made changes and then saved it or reopened it.
so i broke the file up into 3 smaller files by cutting and pasting. i deleted all empty lines and columns beyond the file content. i defragged my compter. i cleared all excess format in job history - but -
one file now has 3,900 lines, 22,300 kb and takes 4 minutes to load.
one file now has 2,000 lines, 20,100 kb and takes 4 minutes to load.
one file now has 4,900 lines, 14,500 kb and takes 1 minute to load.
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Feb 5, 2010
I have attached a workbook that I want to be updated by the user. It contains a number of vlookups that to refer to a data source on a server communal to all users. I wondered if there would be anything that could be done in the workbook to help speed up an update?
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Oct 3, 2007
Below is the entire code that I am using. It is a simple routine which checks whether a part has started its release process or not, based upon dates. The code works and does what I want.
The problem that I have is that it is very slow, for example it takes 35 seconds to go through 530 lines items. In my (limeted) experiance, based on other VBA doodlings this slow.
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Nov 6, 2008
My code runs so slow! The sheet only has 233 rows and 6 of them are not in the loop.
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