While I’m thinking about this stuff, I’d like to share a few simple tips for speeding up your Excel VBA code. So feel free to comment and share any other performance tips you may have.Each time a cell that affects any formula in your spreadsheet is changed or manipulated, Excel recalculates the entire worksheet.Use this code template as a starting point (the error handler ensures that these properties are turned back on at the end of the sub, even if it errors) Sub Your Sub() On Error Go To EH Application. Select Next i 'get results results = "Screen Updating not disabled: " & Format(Time - start Time, "hh:mm:ss") & " seconds" start Time = Time 'scenario 2 - screenupdating disabled Application.Screen Updating = False 'swap between sheets 1/2 (need both sheets or this will crash) For i = 1 To numb Switches Sheets(1 (i Mod 2)). Screen Updating = True 'get results for part two results = results & vb Cr Lf & "Screen Updating IS disabled: " & Format(Time - start Time, "hh:mm:ss") & " seconds" 'show results Msg Box results End Sub Firstly I've been using the script written by Richie (UK) Post #7 Here It simply iterates through a loop changing the value of i in one cell.I started to debug, and immediately after the "Screen Updating = false" line executes, I go to the immediate window and type: Debug. Any clues on how to solve it would be greatly appreciated. Screen Updating = True End Sub _________________________________________________________ Private Sub Check_for_Open_Workbook() Application. Screen Updating = false" because I saw the yellow highlight go over the line in debug mode. Calculation = xl Calculation Automatic Application. Screen Updating from within the code instead of the immediate window, but I'm fairly sure what I'll find. This function gets called by an event handler that catches a Commands Bar button event (? Basically, we create a menu bar and one of the buttons in our custom "File" menu is labeled "Load Portfolio" which calls this function. I have encountered the same symptoms and can't think as to why it's happening. I think that maybe something has broken in my excel because even when I closed out of excel and opened a brand new 2003 workbook with no previous code I was getting the same problem. The interesting thing is that *some* of my modules allow Screen Updating to be set to False, there's only a few that don't.When I started reading more into improving the efficiency of your code I understood what it was for but how much of an effect does Turning off screen updating will only make a difference to execution time if the code interacts with Excel in a way that causes changes to the screen content.
Definitely it will save you a lot of time, but you have to decide of you want/need to see what is happening when your code is running.I’m currently on a project to improve the performance of a particular workbook.Part of this task involves speeding up a few of the macros in the workbook. Screen Updating = False If my Debug = False Then On Error Go To Error Handler I'm afraid that's pretty much it. Screen Updating End Sub As I step through the code when I hove over Application.screen Updating it always says True. Then put it in debug mode and step through with screen updating turned off again, you should find that you still see the numbers going in one by one. Then comment out the line which turns off screen updating and see what happens; you should find that you scroll down the sheet as the numbers get filled.