excel vba tutorial dynamic two dimensional array

EXCEL VBA TUTORIAL DYNAMIC TWO DIMENSIONAL ARRAY CODE
EXCEL VBA TUTORIAL DYNAMIC TWO DIMENSIONAL ARRAY SERIES

Now if we want to replace a series of values with another series, using arrays and the ( Array) function will be extremely helpful: Sub translate() 'Simplified example of EN-FR translation for formulas MsgBox var_translate '=> returns 'Hello you !' Var_translate = Replace(var_translate, 'World', 'you') 'Replacement of 'World' with 'you' in the character string Here is a demonstration of the use of the Replace function (this will help you understand the example that follows): Sub replace_example()

EXCEL VBA TUTORIAL DYNAMIC TWO DIMENSIONAL ARRAY CODE

Luckily, you can simplify this code by using Array: en = Array('IF', 'VLOOKUP', 'SUM', 'COUNT', 'ISNUMBER', 'MID') One solution would be to set the contents line by line: Dim en(5) īut this second method is quite useful if you need to store the entire contents of a large data set, because it's faster than a loop (saving about 0.2 seconds for every 15,000 entries).īut if you need to create an array that has 'fixed' contents. Further along in the development process, if you decide to save only data that correspond to certain search criteria in your array (or to carry out an entirely different operation), you will have to entirely rewrite the code using another loop function. If you store data in your array in this way, the first number will be 1 rather than 0, which can cause confusion. The preceding code can effectively be replaced with: 'Declarationīut if this second method seems attractive at first, be warned that in many cases it can cost you more time than the first one. It's possible to populate an array with the data from a range of worksheet cells without even using a loop.

MsgBox UBound(array_example, 2) '=> returns: 2Įnd Sub Storing data in a range of array elements MsgBox UBound(array_example, 1) '=> returns: 10 MsgBox UBound(array_example) '=> returns: 10 Here are a few examples that will make this clearer: Sub example() This function returns the highest number in the array for the chosen dimension (the first dimension is the default). In the preceding example, the last number in our array was last_row - 2: For i = 0 To last_row - 2Īnother way to determine the last number in the array would be to use Ubound: For i = 0 To UBound(array_example) Last_row = Range('A1').End(xlDown).Row 'Last row of the data set

Using the following procedure, you can store all the rows in the data set in your array: Sub example() Instead, declare a dynamic array (using empty parentheses), then define its dimensions using Redim: Dim array_example() To find out the row number of the last cell in a series of non-empty cells, or in other words, the last row in our database, we'll use the following formula: last_row = Range('A1').End(xlDown).RowĮxcel does not accept variables in declarations. Just imagine for a moment that this same data set was going to be updated regularly and therefore we couldn't set fixed values when we declare it.

MsgBox array_example(10, 2) '=> returns: YES The dynamic array MsgBox array_example(9, 2) '=> returns: NO MsgBox array_example(0, 1) '=> returns: 24 Storing data in a 2 dimensional array: 'Declarationĭim array_example(10, 2) '11 x 3 'element' arrayĪnd here are a few examples of working with these values: MsgBox array_example(0, 0) '=> returns: To store more than one column of data, we will need another dimension in our array.

Excel vba tutorial dynamic two dimensional array