![array visual basic array visual basic](https://i.ytimg.com/vi/zLYMAljTRqA/hqdefault.jpg)
In most of your VBA code, you'll use single dimensional arrays. The data type is set to string and the variable can contain one dimension of variables assigned to indexes 0 to 2.
#Array visual basic how to#
The following code shows you how to create a single dimensional array.
![array visual basic array visual basic](https://i.ytimg.com/vi/1p4iHGWt-XM/maxresdefault.jpg)
Single dimensional arrays carry one dimension of values. In some cases, you'll also need to know how to work with multidimensional arrays. Single dimensional arrays are the most common, so they are the ones often seen in code examples. If you've ever worked with any other programming languages, you are probably familiar with single dimensional arrays. Instead of creating 10 variables, you can create one and store those 10 values in each index.ĭeclaring Single Dimensional and Multidimensional Arrays Arrays are beneficial when you need to store several values into one variable. Public Function basConCatArray(MyArray1 As Variant, MyArray2 As Variant, Myarra圓 As Variant)ĭebug.In this article we will get more detailed into arrays, how they work, creating multidimensional arrays, and looping through them to work with their data.
![array visual basic array visual basic](https://cdn.educba.com/academy/wp-content/uploads/2019/06/VBA-Array-3.gif)
'This just populates the arrays so we can see what worksĬall basConCatArray(MyArray1, MyArray2, Myarra圓) 'This is just a Wrapper so we can test the ReDim Preserve Myarra圓(UBound(Myarra圓) - 1)ĭebug.Print UBound(MyArray1), UBound(MyArray2), UBound(Myarra圓) ReDim Preserve Myarra圓(UBound(Myarra圓) + 1) 'This concatenates the two previouslky created arrays (Public Function basConCatArray(MyArray1 As Variant, MyArray2 As Variant, Myarra圓 As Variant) This also decreases the 'efficiency', however it does allow a great deal of flexability in the process, since we don't need to know what we are concatenating. Alos, note that the arrays here are all decalred as variant. dynamically resizes the resultant asd necessary) Note that this is not the most efficient code, as it is only intended to 'illustrate' the process. Each of the first two arrays is sized randomly, so the second function deals with the size in an orderly manner (e.g. The second function "concatenates" the two arrays into the third. The first of these functions is just a way to generate some random values in two random sized arrays so we can actually run the second function. Steve RE: Concatenate Arrays MichaelRed (Programmer) 17 Oct 00 15:40 There must be an easier/higher-level way to do this, but the couple of other ways I tried didn't work, and this way is more fun anyhow Next, you copy Size2 bytes of memory from the beginning address of the second array - located at Source2(LBound(Source2)) - to the next address of the Result array - located at the address of the array element in Result just after the end of Source1, thus the memory address would be Result(UBound(Source1) + 1).īe careful of how you implement this API call - if you use it wrong you will Dr. So, first you copy Size1 bytes of memory from the beginning address of the first array - located at Source1(LBound(Source1)) - to the beginning address of the Result array - located at Result(LBound(Result)). On a low level, copy memory takes the physical address of the destination variable and the source variable, along with the number of bytes to copy. Now for an explanation of the CopyMemory calls. ReDim Result(UBound(Source1) + UBound(Source2))ĬopyMemory Result(LBound(Result)), Source1(LBound(Source1)), Size1ĬopyMemory Result(UBound(Source1) + 1), Source2(LBound(Source2)), Size2 Size2 = (UBound(Source2) - LBound(Source2) + 1) * 4 Size1 = (UBound(Source1) - LBound(Source1) + 1) * 4 Public Function CopyArray(Source1() As Long, Source2() As Long) As Long() Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long) bas module, put the following API declaration: VB6, SQL Server, QBASIC, C(unix), MS Office VBA solutionsĪLSO: Machine Control/Automation using GE and Omron PLC's and HMI(human machine interface) for industrial applications RE: Concatenate Arrays Ruairi (Programmer) 17 Oct 00 14:14
![array visual basic array visual basic](https://i.ytimg.com/vi/1CWk-0RcDwI/maxresdefault.jpg)
As far as i know there is no function to do this, but its not a difficult task.