VBA: How to handle unexpected empty cells when aggregating data from multiple sheets?
I tried several approaches but none seem to work. I'm working on a VBA script that aggregates data from multiple sheets into a summary sheet. The scenario I'm working with is that some of the cells in the source sheets are unexpectedly empty, which is causing my aggregate calculations to unexpected result or return incorrect results. I'm using Excel 2016 and my current approach looks something like this: ```vba Sub AggregateData() Dim ws As Worksheet Dim summarySheet As Worksheet Dim lastRow As Long Dim i As Long Dim total As Double Set summarySheet = ThisWorkbook.Sheets("Summary") lastRow = summarySheet.Cells(Rows.Count, 1).End(xlUp).Row + 1 For Each ws In ThisWorkbook.Worksheets If ws.Name <> "Summary" Then total = 0 For i = 1 To 10 ' Assuming I want to sum values from A1 to A10 total = total + ws.Cells(i, 1).Value Next i summarySheet.Cells(lastRow, 1).Value = total lastRow = lastRow + 1 End If Next ws End Sub ``` The question arises when the cells in range A1:A10 on any of the sheets are empty. Instead of skipping these cells or treating them as zero, I'm working with a 'Type Mismatch' behavior. I've tried wrapping the addition in an `If Not IsEmpty(ws.Cells(i, 1).Value) Then` check, but that leads to incorrect totals as well. What is the best way to handle these empty cells without causing errors during the aggregation? Should I modify my loop or behavior handling to accommodate these empty cells? Any guidance would be appreciated! I'm working on a CLI tool that needs to handle this. I'm working on a application that needs to handle this. I'd really appreciate any guidance on this.