Screenupdating vba ppt
Use Worksheet Functions wherever applicable Do read full article to understand the logic behind them.o In Microsoft Office Excel 2003 and in earlier versions of Excel, we click Page Setup on the File menu.We might say, "VB does not use pointers", but it is not true."VB does not let you manipulate pointers" is more precise. If all we ever use are object pointers, how can we set the object itself to Nothing? When we set a reference to Nothing, something called the garbage collector kicks in.For example - See these 2 macros When we save the macro, it is virtually compiled and unlike it's human readable form as we saw in VBE(Visual Basic Editor), keywords(the dark blue words which you cannot use as variable) are saved as three-byte token which are faster to process as machine understand them better and variables, comments and literal strings which are not either keyword or directive are saved "as is".However VBA compiler tokenizes the word but it does not compress the lines and each line is maintained as is ending with the 'Carriage Return'.On the eve before Christmas, I'm writing this article on VBA code optimization for my blog readers as a gift. For example, a macro that required several seconds to complete in an earlier version of Excel may require several minutes to complete in a later version of Excel.It contains both the knowledge and good practices which if followed and used effectively then it might put you in elite category of excellent VBA programmers. This problem may occur if the following conditions are true: * The VBA macro modifies the properties of many rows or columns.
Hence, turning off events will speed up our VBA code performance.
For example: Instead of str Variable = "", use str Variable = vb Null String.
Release memory from object variables: Whenever we create an object in VBA, we actually create two things -- an object, and a pointer (called an object reference).
You must set the Screen Updating property to True when the procedure finishes or when it stops after an error. Turn off automatic calculations: Whenever content(s) of a cell or range of cells are changed, the formulas dependent on them and Volatile functions are recalculated.
You can increase the speed of some procedures by keeping screen updating turned off.