Vba application screen updating

Method 1 - Cell by Cell using Select The first method does what you definitely should not do: it loops through the entire range row by row and column by column, selects a cell and then reads the value of this cell respectively writes a value to this cell on the worksheet. Method 5 - Array Column by Column This is the transposed version of method 4: it reads and writes the range column by column, using a 2-dimensional VBA array again, but this time with the rows count as the upper bound of the first dimension and 1 as the upper bound of the second dimension. Let’s test the methods with different range sizes, i.e. We start with a small range of only 10 rows and 2 columns.

Method 6 - Entire Array in One Go Finally, the fastest way to read/write all values from/to an Excel range is to directly assign the entire range to a 2-dimensional VBA array which dimensions equals the size of the range, i.e. Here are the results: You can already see that using a Select statement is considerably slower than the other methods.

A frequently asked question is how to hide rows and/or columns in Excel using a VBA macro. To test the code, highlight it with the mouse, copy (CTRL C) and paste (CTRL V) into a VBA module.

In the last example you can type something in cell A1, and all rows (except row 1) that have the same value in column A will be hidden.To unzip, right-click and select whatever Windows suggests to unzip the archive. You can do it "automatically" by putting code in the worksheet's code sheet.The Work Sheet_Change procedure is activated every time something is changed in the worksheet. The next two macros are examples of what I call "automatic code," because they execute automatically, if a certain condition is met.As always, the article comes with the Excel workbook for free download. Method 3 - Cell by Cell (range variables) Methods 3 is pretty much the same as method 2, but it defines and uses a range variable to address the cells on the worksheet.We will compare 6 different approaches how to read data from and write data to a worksheet range by VBA. Method 4 - Array Row by Row The fourth variation uses a 2-dimensional VBA array to read the range row by row instead of cell by cell.

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Optimize the way of reading values from and writing values to the worksheet. However, how much can you speed up your code with these best practices?

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