![]() I hate repetitive coding: I've coded it all here, and - hopefully - you'll never have to write it again.Ī VBA 'Array to Range' function Public Sub ArrayToRange(rngTarget As Excel.Range, InputArray As Variant) Or at least, so much faster that it's effectively instantaneous, compared with a read or write to the worksheet, even in VBA, and you should do everything you possibly can in code before you hit the sheet.Ī major component of this is error-trapping that I used to see turning up everywhere. This 'housekeeping' looks like a lot of work and it's probably rather slow: but this is 'last mile' code to write to the sheet, and everything is faster than writing to the worksheet. However, there's some housekeeping to do, as you must specify the size of the target range correctly. This is much faster than writing the data into the sheet one cell at a time in loops for the rows and columns. Here's A generic VBA Array To Range function that writes an array to the sheet in a single 'hit' to the sheet. Since I don't know what the dimensions are from the get go I can't declare it like Dim s2Array(1, 1) because then I'll get an out-of-bounds exception. The same error occurs if I change it to Dim s2Array(1 To totalRow, 1 To totalCol). When I attempt to run this I get a compile-time error at the Dim s2Array(totalRow, totalCol) saying that a constant expression is required. TotalCol = ActiveSheet.Range("A1").End(xlToRight).ColumnĪctiveWorkbook.Sheets(secondSheetName).Select TotalRow = ActiveSheet.Range("A1").End(xlDown).Row ' Find totalRow, totalColumn (assumes there's values in Column A and Row 1 with no blanks) Set wbs = Workbooks.Open(file_path & data_title)ĪctiveWorkbook.Sheets(firstSheetName).Select Since I don't know how many rows or columns there are I was going to use variables. The arrays are populated by numbers in Excel sheets (one set of numbers is on Sheet1 and another set is on Sheet2, both sets have the same number of rows and columns). I'm trying to create a program that will utilize two 2-Dimensional arrays and then perform simple operations on those arrays (such as finding difference or percent). You see the same result.I was trying to find out how to declare a 2-Dimensional array but all of the examples I have found so far are declared with set integers. To try this, copy the formula, select a blank cell and paste the formula into the formula bar, and then press Ctrl+Shift+Enter. If you wanted to, you could enter both sets of values as array constants: What happened? You multiplied the value in A1 by 1, the value in cell B2 by 2, and so on, then the SUM function added those results. In any blank cell, enter (or copy and paste) this formula, and then press Ctrl+Shift+Enter: Now that you're familiar with array constants, here's a working example. If you're wondering, you can't create a three-dimensional constant, meaning you can't nest a constant inside another one. In geek terms, this is a two-dimensional constant because it fills columns and rows. ![]() In this case, separate the values in each row with commas, and use a semicolon at the end of each row. ![]() For example, if your constant will write data to four columns and three rows, select that many columns and rows.Įnter an equal sign and your constant. Make sure the number of rows and columns you select matches the number of values in your constant. Use a constant to enter values in multiple columns and rows In geek terms, this is a one-dimensional horizontal constant. Press Ctrl+Shift+Enter, and the constant looks like this: You can also use array constants, values you just enter in the formula bar inside braces: When you enter an array formula, you most often use a range of cells in your worksheet, but you don't have to.
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