VBA: guide with Dynamic Array Resizing in a Loop When Generating Reports
I'm writing unit tests and I'm dealing with I'm optimizing some code but I'm relatively new to this, so bear with me. After trying multiple solutions online, I still can't figure this out. I'm working on a VBA script to generate monthly reports from a master data sheet. My goal is to dynamically create an array based on the number of entries in a specific column, but I'm working with an "Invalid procedure call or argument" behavior when trying to resize the array during a loop. Here's the snippet where the question arises: ```vba Dim reportData() As Variant Dim lastRow As Long Dim i As Long lastRow = Worksheets("Data").Cells(Rows.Count, 1).End(xlUp).Row For i = 1 To lastRow If Worksheets("Data").Cells(i, 1).Value <> "" Then ReDim Preserve reportData(0 To i) reportData(i) = Worksheets("Data").Cells(i, 1).Value End If Next i ``` In this loop, I'm trying to resize the `reportData` array to accommodate new data as I process each row. However, the behavior occurs the first time I attempt to call `ReDim Preserve` after the array has been allocated. I've also tried initializing `reportData` as a fixed-size array first and then resizing, but that leads to incorrect data being stored. I've confirmed that the data in the "Data" sheet is valid and there's no empty value in the first column that could cause issues. I also suspect the scenario might be related to how `ReDim Preserve` works with the array bounds, but I'm not sure. Any insights on how to handle this scenario correctly would be greatly appreciated! For context: I'm using Vba on Windows. Any ideas what could be causing this? My development environment is Windows. What am I doing wrong? Hoping someone can shed some light on this. I'm using Vba 3.10 in this project. I appreciate any insights! Could this be a known issue?