Range("D2").Value = datasht.Cells(datarow, 1) Range("D2").Formula datasht.Cells(datarow, 1).Formula Then. Since most of the time only 1 or a small handful of cells have changed I added a check to see if the data is different before writing and the Sub now runs in about 4ms. I added a timer in the middle and confirmed that each half was taking roughly 300ms which made sense but wanted to make sure there wasn't a particular cell causing issues. As an aside, I switched from using 72 times to determining the appropriate row in the data table with a single datarow=.Cells.Find(.) and it made no perceivable impact in execution time. Getting from t(7) to t(9) took around 600ms. Range("G51").Value = datasht.Cells(datarow,72)Ĭode typed by hand, please forgive any typos. Range("I7").Value = datasht.Cells(datarow, 3) Range("D3").Value = datasht.Cells(datarow, 2) Set datasht = WB2.Worksheets("Equipment-Data") My code looked like this: t(7)=timer*1000 I found this thread looking to speed up transfer of 72 cells from one sheet to another (a data storage sheet to a data entry sheet). So in this case R2=R1would be better by far (6 times faster). Note : i wasn't happy with these results so i tested some more, and if R1 contains many different formating, the R1.copy R2 method will take 10 seconds. 'For Each Rg In R1.Cells: r2.Cells(Rg.Row, Rg.Column).Value2 = Rg.Value2: Next Rg '54 seconds !! 'R1.Copy r2 '0.74 sec <<<< Winer, but see NOTE. 'For Each Rg In R1.Cells: 'if you do this too often, you'll get an error ReDim data(R1.Rows.Count, R1.Columns.Count)įor Each Rg In R1.Cells: Rg = Rnd()*100: Next Rg I tried 4 methods, and the NOT obvious (to me) came out: Option Explicit ![]() ![]() That being said, I would think that it's possible to equate the elements of two ranges without looping through each cell and equating the values. they would need to be cells continuous through a rectangular array and pasted into a rectangular array of the same size). I feel like it might not be possible to copy and paste ranges like this at all (i.e. Would it be faster to define ranges using the cells I want to copy and the destination cells, then do a Range.Copy and Range.Paste operation? Is it possible to define a range using an array without having to loop through it anyway? Or will it be faster anyway to loop through an array to define a range and then copy-pasting the range instead of equating the cell values by looping? For example: Worksheets("Sheet1").Cells(row1(i),col1(j)).Value = Worksheets("Sheet2").Cells(row2(y),col2(z)).Value I want to avoid overwriting cells that already contain data) I'll either have a conditional inside the loop, or I'll fill an array(s) with row & column numbers that I want to cycle through, and then cycle through the array elements. In other cases where my ranges are not consecutive rows/columns (e.g. ![]() Generally, I'll loop through the cells by column and/or row and use a line such as: Worksheets("Sheet1").Cells(i,j).Value = Worksheets("Sheet1").Cells(y,z).Value Quite simply, I am wondering what the fastest method of copying cell values from one sheet to another is.
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