Vba no screen updating
The tips are specific to the desktop version because macros don't run in the browser version. Have you noticed that your screen sometimes flickers while a macro is running? Calculation = xl Calculation Automatic Similar to setting the Calculation property to Manual, disabling events can have unexpected results, so use it with careful consideration.This happens when Excel attempts to redraw the screen to show changes made by the running macro. If you use the macro recorder, you may have noticed that it's fond of using the Select method to explicitly reference things.If your read my previous reply to Alpha Frog, it may be possible to make three different tables for each ledger.
As the proud owner of several large VBA macros, I have spent a considerable amount of time looking for ways to make macros run faster.
Similar to selecting ranges and objects to perform an action in the sheet, an explicit reference to the sheet also slows down processing. For example, the following code references the same cell (value) six times: Function Return Fee Slow() Select Case Range("I4") Case 1 Return Fee = Range("I4") * 10 Case 2 Return Fee = Range("I4") * 20 Case 3 Return Fee = Range("I4") * 30 Case 4 Return Fee = Range("I4") * 40 Case 5 Return Fee = Range("I4") * 50 End Select Msg Box Return Fee, vb OKOnly End Function At the very least, Return Fee Slow() makes two explicit references to I4.
It's not changing the value, it's using the value in a simple expression.
This article is primarily focused on Excel VBA macros, however many of these rules apply to Microsoft Access VBA macros as well. Turn off automatic spreadsheet calculation This rule is well known, but it is the most important rule.
The first five rules generally have the largest impact on macro performance. Please note that my estimates of time savings below may vary significantly for your specific application. When a new value is entered into a worksheet cell, Excel will recalculate all the cells that refer to it.