Understanding Arrays. The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location. Arrays make it possible for you to refer to a series of variables by the same name and to use a number (an index) to tell them apart. This helps you create smaller and simpler code in many situations, because you can set up loops that deal efficiently with any number of cases by using the index number. Arrays are useful when you must store a number of values of the same type, but you do not know how many, or you do not want to create individual variables to store them all.
For example, suppose you must store a numeric value for every day of the year. You could declare 365 separate numeric variables, but that would be a lot of work. You can use loops, together with a couple of special functions for working with arrays, to assign values to or retrieve values from the various elements of an array. In This Section Related Sections. Array Function. VBA Arrays. If you're writing anything but the most trivial VBA procedures, it is quite likely that you will be using arrays in your VBA code to store data or series of related data.
This page describes nearly 40 functions you can use to get information about and manipulate arrays. It is assumed that you know the basics of VBA arrays. For information about passing and returning arrays to and from procedures, see the Passing And Returning Arrays With Functions page. The following terminology used on this page: This page describes about 30 functions that you can use to get information about and manipulate arrays. You can download a bas module file containing the procedures here. The downloadable file contains two modules: modArraySupport, which contains all of the VBA code, and modDemo which contains procedures testing and illustrating the function in modArraySupport. These functions call upon one another, so it is recommended that you Import the entire module file into your project. CombineTwoDArrays. Returning Arrays From VBA Functions. Returning Arrays From VBA User Defined Functions This page describes returning arrays as the result of VBA User Defined Functions.
If you often write your own User Defined Functions (UDFs) in VBA or in a COM or Automation Add-Ins (click here for information about writing your own functions in VBA; click here for information about writing COM Add-Ins, or click here for information about writing Automation Add-Ins), you have likely needed to or at least found it useful to return an array as the result of your VBA function. This allows the user to array enter your function (click here for information about array formulas) into a range of cells on the worksheet to display the contents of the array that is returned by your UDF. This page looks at a few issue that might arise when you are returning arrays from UDFs. At its simplest, the size of the returned array can be mandated by the function and require that the user use an array that size in order to get all the results. Excel VBA Basic Tutorial 3. Excel VBA Basic Tutorial 3 This page contains the 3rd lesson on the Excel VBA Basic Tutorial series. It covers topics in creating and managing array and understanding the VBA decision and loop structures.
Beginners in VBA programming are encouraged to go through the prior lessons in this series if they had not already done so. This document contains information about the following topics. Microsoft Support site or the Excel VBA Help section on your computer contains comprehensive examples on most the issues covered on this page. For more information, please refer to them. Creating and Managing Array Microsoft Support Declaring an Array With Dim Statement An array is a set of sequentially indexed elements having the same intrinsic data type. Before signing values to an array, the array needs to be created. For example, to declare a one-dimensional array with 5 elements, type the following: Dim Arr(4) The following example assigns values to the array and displays all values in a message box : Array variables using VBA in Microsoft Excel. You can run the macros either from the Visual Basic Editor by placing your cursor in the macro and pressing the F5 key, or from Excel by opening the Macros dialog box (ALT+F8) choosing the macro to run and clicking Run.
It is best to run these macros from Visual Basic Editor by using Debug > Step Into (by pressing F8) so you can watch them as they work. Instruction If Developer Tab is not in the Ribbon.. Open Excel.Go to VBA Editor (press Alt + F11)Go to Immediate Window. ( Ctrl + G)Write below Code. Application.ShowDevTools = True How to Insert VBA code in Excel Go to Developer Tab > Code Group > Visual BasicClick Insert > Module.Will open a Blank Module for you.Write / Paste provided code in that Module How to Run VBA code in Excel Select anywhere in between the Code, Sub… End SubClick Run & Run Sub or F5 Static array variables Instead of using several unique variables to store information, you can use an array variable. Code Decode Dim MyNames(1 to 10) As String Dim iCount As Integer Wend.
Visual Basic macro examples for working with arrays. Array in Excel VBA. 21.1 What is an Array? When we work with a single item, we only need to use one variable. However, if we have a list of items which are of similar type to deal with, we need to declare an array of variables instead of using a variable for each item. For example, if we need to enter one hundred names, instead of declaring one hundred different variables, we need to declare only one array. By definition, an array is a group of variables with the same data type and name. Private Sub CommandButton1_Click( ) Dim StudentName(1 to 5) As StringFor i = 1 To 5StudentName(i) = InputBox("Enter student Name")Cells(i, 1) = StudentName(i)Next End Sub ** You can also declare the array using Dim StudentName(5) As String When we run the program, an input box will appear, as shown below. The five names will be displayed in the spreadsheet as shown below: Example 21.2You can also declare more than one array in a single line.
Dim arrayName (num1, num2) as datatype Dim Score(1 to 3, 1 to 3) as Integer.