Worksheet_Change.bas

Private Sub Worksheet_Change(ByVal Target As Range) 'Tự động giãn dòng vùng đã trộn ô
Dim MergeWidth As Single
Dim cM As Range
Dim AutoFitRng As Range
Dim CWidth As Double
Dim NewRowHt As Double
Dim str01 As String
  str01 = "OrderNote"
    'OrderNote = Tên vùng trộn ô
  If Not Intersect(Target, Range(str01)) Is Nothing Then
    Application.ScreenUpdating = False
    On Error Resume Next
    Set AutoFitRng = Range(Range(str01).MergeArea.Address)

    With AutoFitRng
      .MergeCells = False
      CWidth = .Cells(1).ColumnWidth
      MergeWidth = 0
      For Each cM In AutoFitRng
          cM.WrapText = True
          MergeWidth = cM.ColumnWidth + MergeWidth
      Next
      'Điều chỉnh 1 chút về độ rộng tạm thời:
      MergeWidth = MergeWidth + AutoFitRng.Cells.Count * 0.66
      .Cells(1).ColumnWidth = MergeWidth
      .EntireRow.AutoFit
      NewRowHt = .RowHeight
      .Cells(1).ColumnWidth = CWidth
      .MergeCells = True
      .RowHeight = NewRowHt
    End With
    Application.ScreenUpdating = True
  End If
End Sub