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How do I use arrays in VBA to cut a massive amount of data from one sheet to the next
Posted on 2011-03-14
Hi
I need to loop through a large amount of data in one sheet and cut and paste a subset of it into another sheet. Currently I'm using a For Next loop to cut and paste individual rows of data, but it's very slow.
I would like to either copy all rows in one go to an array, and then paste it to the new sheet, or else copy to virtual memory, if that's at all possible.
Regards
JL
I need to loop through a large amount of data in one sheet and cut and paste a subset of it into another sheet. Currently I'm using a For Next loop to cut and paste individual rows of data, but it's very slow.
I would like to either copy all rows in one go to an array, and then paste it to the new sheet, or else copy to virtual memory, if that's at all possible.
Regards
JL
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3 Comments
How about filtering the data on the original sheet, and copying the filtered range only to a new sheet?
Adding a template workbook would probably improve the quality of the input you will get.
Thoma
Adding a template workbook would probably improve the quality of the input you will get.
Thoma
Dim arr As Variant
arr = Sheets("Sheet1").Range("A1
Sheets(2).Range("a1:d5") = arr
Or whatever range you want. Be warned the array has two dimensions as row then column.
Chris
arr = Sheets("Sheet1").Range("A1
Sheets(2).Range("a1:d5") = arr
Or whatever range you want. Be warned the array has two dimensions as row then column.
Chris
To give an example of an iterating loop see the snippet
I have used blocks of 40 datums but whilst not infinite much greater blocks can be used
Chris
I have used blocks of 40 datums but whilst not infinite much greater blocks can be used
Chris
Dim arr As Variant
Dim rng As Range
Dim lngRow As Long
For lngRow = 0 To 100 Step 10
Set rng = Sheets("Sheet1").Range("A" & lngRow + 1 & ":D" & lngRow + 10)
Debug.Print rng.Address
arr = rng
Sheets(2).Range(rng.Address).Formula = arr
Next
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