求助：Excel跨工作簿数据匹配剩余功能实现（已完成部分）

Hey there! Nice job getting the basic matching and value copy working already—let's tackle those remaining two features you're stuck on. Since you didn't specify exactly what they are, I'll cover two common pain points folks run into with this kind of Excel task, along with actionable solutions for each:

1. Handling Case-Sensitive Matches or Duplicate Names #

If your issue is either matching names that need case-sensitive comparison (e.g., "Apple" vs "apple" are treated as distinct) or dealing with duplicate names in column H (where you need to pick the right QTY value), here's how to adjust your workflow:

Case-Sensitive Matching #

Use EXACT() combined with INDEX/MATCH to ensure only case-identical entries are matched:

=INDEX(to_update_example_1!$G:$G, MATCH(TRUE, EXACT(to_update_example_1!$H:$H, Purchasing list!$H2), 0))

For older Excel versions, enter this as an array formula by pressing Ctrl+Shift+Enter; modern Excel handles arrays automatically.

Handling Duplicate Names #

• If you need to sum all QTY values for duplicate names, use SUMIF:

  =SUMIF(to_update_example_1!$H:$H, Purchasing list!$H2, to_update_example_1!$G:$G)
  

• If you need the latest QTY value (assuming a date column, say column I in to_update_example_1), use XLOOKUP with a descending sort:

  =XLOOKUP(Purchasing list!$H2, to_update_example_1!$H:$H, to_update_example_1!$G:$G, "No match", 0, 2)
  

  The 2 at the end sorts matches in descending order, picking the most recent entry.

2. Automating the Update Process #

If you want values in Purchasing list to refresh automatically whenever to_update_example_1 changes (instead of manually re-running formulas), use a simple VBA macro:

1. Open the VBA editor with Alt+F11.
2. Insert a new module, then paste this code:

Sub AutoUpdateQTY()
    Dim wsSource As Worksheet, wsDest As Worksheet
    Dim lastRowSource As Long, lastRowDest As Long
    Dim i As Long, j As Long
    
    Set wsSource = ThisWorkbook.Worksheets("to_update_example_1")
    Set wsDest = ThisWorkbook.Worksheets("Purchasing list")
    
    lastRowSource = wsSource.Cells(wsSource.Rows.Count, "H").End(xlUp).Row
    lastRowDest = wsDest.Cells(wsDest.Rows.Count, "H").End(xlUp).Row
    
    ' Loop through destination sheet to find matches
    For i = 2 To lastRowDest
        For j = 2 To lastRowSource
            If wsDest.Cells(i, "H").Value = wsSource.Cells(j, "H").Value Then
                wsDest.Cells(i, "F").Value = wsSource.Cells(j, "G").Value
                Exit For ' Stop searching once a match is found
            End If
        Next j
    Next i
End Sub

3. To trigger updates automatically, add this to the ThisWorkbook module:

Private Sub Workbook_Open()
    AutoUpdateQTY
End Sub

Private Sub Workbook_SheetChange(ByVal Sh As Object, ByVal Target As Range)
    If Sh.Name = "to_update_example_1" Then
        AutoUpdateQTY
    End If
End Sub

This will refresh QTY values every time you open the workbook or edit the to_update_example_1 sheet.

If your remaining features are different from these, feel free to share more details (like specific behavior you're aiming for, error messages, or edge cases) and I can refine the solution!

内容的提问来源于stack exchange，提问作者Jonathan Lim