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VBA: How to dynamically resize an array based on user input in a UserForm?

👀 Views: 50 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-05
vba excel userform

I'm collaborating on a project where After trying multiple solutions online, I still can't figure this out. I'm relatively new to this, so bear with me. I tried several approaches but none seem to work. I'm relatively new to this, so bear with me. I'm developing a UserForm in Excel VBA where I need to handle dynamic arrays based on user input. Specifically, I want to allow the user to specify the number of entries they want to make in a ListBox, and then resize an array accordingly to store these entries. However, I'm working with an scenario where the array does not seem to resize as expected, and I get a 'Subscript out of range' behavior when I try to access the elements of the array after resizing it. Here's a simplified version of what I've tried: ```vba Dim userInput As Integer Dim dataArray() As String Private Sub btnSubmit_Click() userInput = CInt(txtNumberOfEntries.Value) ReDim dataArray(1 To userInput) For i = 1 To userInput dataArray(i) = InputBox("Enter value for entry " & i) Next i End Sub Private Sub btnShowEntries_Click() Dim output As String For i = 1 To UBound(dataArray) output = output & dataArray(i) & vbCrLf Next i MsgBox output End Sub ``` When I run this code, if I enter a number in `txtNumberOfEntries` and then try to show the entries, I receive the behavior: ``` Run-time behavior '9': Subscript out of range ``` I suspect that the scenario might be related to the scope of the `dataArray` variable or how I'm handling the resizing, but I'm not entirely sure. I've also tried declaring the array at the module level and ensuring it's initialized before accessing it, but the behavior continues. Any insight into what might be going wrong would be greatly appreciated! My development environment is Ubuntu. I'm working on a web app that needs to handle this. This issue appeared after updating to Vba 3.11. I'd be grateful for any help. Could this be a known issue? The stack includes Vba and several other technologies. I've been using Vba for about a year now. What's the correct way to implement this?