Vba screen updating code

27-Jun-2015 20:34 by 9 Comments

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You can do it like this: Normally the screen updating is switched back on just before "Exit Sub".If you don't use error handling (like here), the program will just crash.

vba screen updating code-50

This tells the program to go back to the label "Before Exit", and screen updating will be switched back on before exit.

In normal mode Excel will recalculate, if you change a cell value that affects other cell values.

This too can steal time, if you run a large application, and it is possible to switch off the automatic calculation: However you must consider, that if automatic calculation is switched off, Excel will not update cell values, so if your macro needs updated cell values, it is necessary to force a recalculation, either for a specific range: "Range("My Range"). Very often you can speed up execution by writing lean code. If you use recorded macros, it is usually possible to increase speed considerably by changing the code slightly.

Recorded macros tend to select cells and then work with the Selection.

With small macros speed is irrelevant - they execute in a split second.

However when your programs start to grow bigger and bigger, efficient code and speed becomes an isssue.

You can do several things to boost the speed, and one of the most effective tricks is to switch off screen updating, when the code is executing.If the macro writes to cells or switches between worksheets, the screen can flicker a lot.Excel uses many resources on screen updating, and often you can get a considerable speed increase by switching off screen updating, when your macro starts.When the macro has finished, you switch the updating back on.It looks like this: It is a pain, if the program gets an error and crashes before it has switched the screen updating back on.So it makes sense to use error handling to make sure that the updating is switched on no matter what.