Application screenupdating false meaning


06-Mar-2019 23:04

Supporters of this claim mistakenly believe that VBA “resets itself” at the end of a macro or procedure, and/or not resetting Screen Updating to True has no bad effects.

Occasionally a parroted claim will pop up in the Excel cybersphere that resetting Screen Updating from False back to True in a VBA procedure is pointless and unnecessary.

Do not believe these claims — they are misinformed and dead wrong.

Whenever you set Screen Updating to False in your code, make certain to reset it to True.

Here’s why: First, no matter what the help files may say, or what you may have heard, Screen Updating does not always reset itself, including where User Forms and User Defined Functions are concerned.

Third, there might be times when you are running code in sequence and you want to see what you did while you are doing it. Macros Two and Three are called by Macros One and Two, but you cannot see the results of your code until the last macro is completed, unless you had set the Screen Updating back to the way it was in each macro. Screen Updating = False Msg Box "Screen Updating is off now !! Value = "Two" Msg Box "Screen Updating is " & Application.

It bears mentioning in this case that the message boxes give that wild effect if you drag them while Screen Updating is False, very sloppy, all the more reason to set things back to normal as you go. Screen Updating = True Msg Box "Screen Updating is on." Range("A1: A3"). Screen Updating Three End Sub Sub Three() Range("A3").

Value = "Three" Msg Box "Screen Updating is " & Application.

Screen Updating End Sub Fourth, good code writing in my opinion involves good citizenship and an awareness of perception. You never know when the next version from Microsoft will make you wish you had the good sense to keep things in order from the start. Fair or not, just as people are judged by how they write and speak, programmers are judged by the quality of their code, and seen to look lazy and VBA-ignorant when not re-setting the application.

If you change the setting of something, then when you are through, set it back to the way it was before. There are too many bad possible outcomes that you would not know about until they happen.Platforms; IT settings; UDFs; fatal errors occurring from unforeseen reasons (but they’d seem obvious after they happen when first unforeseen); the list goes on. I cannot tell you how many times in my work I’ve come across a potential bad outcome were the True setting not reset.Whether the end of a macro comes from the expected process of events or through error handling, please always ensure you have reset Screen Updating to True if you had previously set to False. Remarks Turn screen updating off to speed up your macro code.



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