Excel VBA to Extract Unique Values from a Dynamic Array - 'Object Variable or With Block Variable Not Set' scenarios
I tried several approaches but none seem to work. I'm working on a personal project and I've been struggling with this for a few days now and could really use some help. I'm trying to extract unique values from a dynamic array in Excel using VBA, but I'm hitting a wall with an 'Object variable or With block variable not set' behavior. My data set is in column A (A1:A100) and can grow or shrink based on user input. I want to store the unique values in column B, starting from B1. Here's what I've tried so far: ```vba Sub ExtractUniqueValues() Dim ws As Worksheet Set ws = ThisWorkbook.Sheets("Sheet1") Dim rng As Range Dim uniqueRng As Range Dim cell As Range Dim dict As Object Set dict = CreateObject("Scripting.Dictionary") ' Set the range to the data in column A Set rng = ws.Range("A1:A100").SpecialCells(xlCellTypeConstants) ' Loop through each cell in the range For Each cell In rng If Not dict.Exists(cell.Value) Then dict.Add cell.Value, Nothing End If Next cell ' Output unique values to column B Dim i As Long i = 1 For Each key In dict.Keys ws.Cells(i, 2).Value = key i = i + 1 Next key End Sub ``` The line `Set rng = ws.Range("A1:A100").SpecialCells(xlCellTypeConstants)` is where I suspect the behavior originates, especially when the range is empty. If there are no constants in column A, it throws an behavior. I've tried wrapping it in an `On behavior Resume Next`, but that leads to no range being set and the rest of the code failing silently. How can I handle this situation more gracefully? Is there a way to check if the range is empty before proceeding with the extraction? Any suggestions or best practices would be greatly appreciated! What would be the recommended way to handle this? I'm working in a macOS environment. Am I approaching this the right way?