VB.net 将一列从一个 sheet 复制并粘贴到另一个 sheet

Question

我一直在努力打开现有的工作簿，同时在该工作簿中创建两个新的 sheet。完成后，我试图将工作簿中现有 sheet 的整个列复制到我创建的新 sheet 之一，然后删除该列中的重复项以及空行。我已经创建了两个新的 sheet，但我的副本似乎不起作用，该列是空的。我在删除空行时也有错误。所有见解都会有所帮助！

'Open up the workbook and create two need worksheets (Unique Numbers & Attributes).
        If IO.File.Exists("C:\Users\file.xlsm") Then xlWorkBook = xlApp.Workbooks.Open("C:\Users\file.xlsm")
        Dim worksheets As Excel.Sheets = xlWorkBook.Worksheets
        Dim xlNewSheet = DirectCast(worksheets.Add(worksheets(1), Type.Missing, Type.Missing, Type.Missing), Excel.Worksheet)
        xlNewSheet.Name = "Unique Numbers"
        Dim xlNewSheet2 = DirectCast(worksheets.Add(worksheets(1), Type.Missing, Type.Missing, Type.Missing), Excel.Worksheet)
        xlNewSheet2.Name = "Attributes"

        'Populate the Unique Numbers worksheet.
        Dim trace As Object
        Dim unique_numbers As Object
        trace = xlWorkBook.Sheets("2020-12-16_12-07-12_781") 'The existing worksheet in the workbook
        unique_numbers = xlWorkBook.Sheets("Unique Numbers")

        'Extract the values from trace and copy them to unique numbers, then remove duplicates and empty rows
        trace.Range("E:E").Copy 'I can confirm this row has data
        unique_numbers.Range("A:A").PasteSpecial(Excel.XlPasteType.xlPasteFormats)
        unique_pgns.Range("A:A").RemoveDuplicates()
        'Loop through range ("A")
         Dim rowCount As Integer = unique_numbers.Rows.Count()
         Dim r As Integer
         For r = rowCount - 1 To 0 Step -1
             If unique_numbers.Rows(r) Is "" Then
                 unique_numbers.DeleteRow(r + 1)
            End If
        Next

Answer 1

经过多次尝试，终于弄明白了。

trace.Range("E:E").Copy()
unique_numbers.Range("A:A").PasteSpecial(Excel.XlPasteType.xlPasteAll)
unique_numbers.Range("A:A").RemoveDuplicates(Columns:=1,Header:=Excel.XlYesNoGuess.xlYes)

VB.net 将一列从一个 sheet 复制并粘贴到另一个 sheet

VB.net copying and pasting a column from one sheet to another sheet

vb.net

excel

vb.net-2010