VBA Dynamic Ranges

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北海茫月
北海茫月 2021-01-27 16:28

I wonder whether someone may be able to help me please.

I\'ve put together the code below which creates a new sheet in my workbook and applies dynamic named ranges and p

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  •  有刺的猬
    2021-01-27 16:55

    I agree with ooo's answer: if you can use the power of Excel instead of VBA do. However, I must object to:

    Set rLOB = Range([B4], [B4].End(xlDown))
    

    End(xlDown) does not define the last used row which is what I assume you want. If cell B4 is blank and there are no used cells below it, it sets rLOB to B4 down to the bottom of the column. If cell B4 is blank and there are used cells below B4, it sets rLOB to B4 down to the first non-blank cell. If B4 is non-blank, it sets rLOB from B4 down to the cell before the next blank cell.

    If there are blank cells, each column's range will be down to a different row.

    Finding the last used row or column, if that is what you, can be tricky with no method giving you the correct result in every situation.

    Create an empty workbook, place the code below in a module and run the macro. It shows a selection of techniques and the problems with each. Hope this helps.

    Option Explicit
    Sub FindFinal()
    
      Dim Col As Long
      Dim Rng As Range
       Dim Row As Long
    
      ' Try the various techniques on an empty worksheet
      Debug.Print "***** Empty worksheet"
      Debug.Print ""
    
      With Worksheets("Sheet1")
    
        .Cells.EntireRow.Delete
    
        Set Rng = .UsedRange
        If Rng Is Nothing Then
          Debug.Print "Used range is Nothing"
        Else
          Debug.Print "Top row of used range is: " & Rng.Row
           Debug.Print "Left column row of used range is: " & Rng.Column
          Debug.Print "Number of rows in used range is: " & Rng.Rows.Count
          Debug.Print "Number of columns in used range is: " & Rng.Columns.Count
           Debug.Print "!!! Notice that the worksheet is empty but the user range is not."
        End If
    
        Debug.Print ""
    
        Set Rng = .Cells.Find("*", .Range("A1"), xlFormulas, , xlByRows, xlPrevious)
         If Rng Is Nothing Then
          Debug.Print "According to Find the worksheet is empty"
        Else
          Debug.Print "According to Find the last row containing a value is: " & Rng.Row
        End If
    
        Debug.Print ""
        Set Rng = .Cells.SpecialCells(xlCellTypeLastCell)
        If Rng Is Nothing Then
          Debug.Print "According to SpecialCells the worksheet is empty"
        Else
          Debug.Print "According to SpecialCells the last row is: " & Rng.Row
           Debug.Print "According to SpecialCells the last column is: " & Rng.Column
        End If
    
        Debug.Print ""
        Row = .Cells(1, 1).End(xlDown).Row
        Debug.Print "Down from A1 goes to: A" & Row
         Row = .Cells(Rows.Count, 1).End(xlUp).Row
        Debug.Print "up from A" & Rows.Count & " goes to: A" & Row
        Col = .Cells(1, 1).End(xlToRight).Column
        Debug.Print "Right from A1 goes to: " & ColNumToCode(Col) & "1"
         Col = .Cells(1, Columns.Count).End(xlToLeft).Column
        Debug.Print "Left from " & Columns.Count & _
                    "1 goes to: " & ColNumToCode(Col) & "1"
    
        ' Add some values and formatting to worksheet
    
        .Range("A1").Value = "A1"
        .Range("A2").Value = "A2"
        For Row = 5 To 7
          .Cells(Row, "A").Value = "A" & Row
         Next
        For Row = 12 To 15
          .Cells(Row, 1).Value = "A" & Row
        Next
    
        .Range("B1").Value = "B1"
        .Range("C2").Value = "C2"
        .Range("B16").Value = "B6"
         .Range("C17").Value = "C17"
    
        .Columns("F").ColumnWidth = 5
        .Cells(18, 4).Interior.Color = RGB(128, 128, 255)
        .Rows(19).RowHeight = 5
    
        Debug.Print ""
         Debug.Print "***** Non-empty worksheet"
        Debug.Print ""
    
        Set Rng = .UsedRange
        If Rng Is Nothing Then
          Debug.Print "Used range is Nothing"
        Else
          Debug.Print "Top row of used range is: " & Rng.Row
           Debug.Print "Left column row of used range is: " & Rng.Column
          Debug.Print "Number of rows in used range is: " & Rng.Rows.Count
          Debug.Print "Number of columns in used range is: " & Rng.Columns.Count
           Debug.Print "!!! Notice that row 19 which is empty but has had its height changed is ""used""."
          Debug.Print "!!! Notice that column 5 which is empty but has had its width changed is not ""used""."
           Debug.Print "!!! Notice that column 4 which is empty but contains a coloured cell is ""used""."
        End If
    
        Debug.Print ""
    
        Set Rng = .Cells.Find("*", .Range("A1"), xlFormulas, , xlByRows, xlPrevious)
         If Rng Is Nothing Then
          Debug.Print "According to Find the worksheet is empty"
        Else
          Debug.Print "According to Find the last row containing a formula is: " & Rng.Row
        End If
         ' *** Note: search by columns not search by rows ***
        Set Rng = .Cells.Find("*", .Range("A1"), xlFormulas, , xlByColumns, xlPrevious)
        If Rng Is Nothing Then
          Debug.Print "According to Find the worksheet is empty"
         Else
          Debug.Print "According to Find the last column containing a formula is: " & Rng.Column
        End If
        ' *** Note: Find returns a single cell and the nature of the search
        '           affects what it find.  Compare SpecialCells below.
    
        Debug.Print ""
        Set Rng = .Cells.SpecialCells(xlCellTypeLastCell)
        If Rng Is Nothing Then
          Debug.Print "According to SpecialCells the worksheet is empty"
        Else
          Debug.Print "According to SpecialCells the last row is: " & Rng.Row
           Debug.Print "According to SpecialCells the last column is: " & Rng.Column
        End If
    
        Debug.Print ""
        Row = 1
        Do While True
          Debug.Print "Down from A" & Row & " goes to: ";
           Row = .Cells(Row, 1).End(xlDown).Row
          Debug.Print "A" & Row
          If Row = Rows.Count Then Exit Do
        Loop
    
      End With
    
      With Worksheets("Sheet2")
    
        .Cells.EntireRow.Delete
    
      .Range("B2").Value = "B2"
      .Range("C3").Value = "C3"
      .Range("B7").Value = "B7"
      .Range("B7:B8").Merge
       .Range("F3").Value = "F3"
      .Range("F3:G3").Merge
    
        Debug.Print ""
        Debug.Print "***** Try with merged cells"
    
        Set Rng = .UsedRange
         If Rng Is Nothing Then
          Debug.Print "Used range is Nothing"
        Else
          Debug.Print "Used range is: " & Replace(Rng.Address, "$", "")
        End If
    
         Debug.Print ""
        Set Rng = .Cells.Find("*", .Range("A1"), xlFormulas, , xlByRows, xlPrevious)
        If Rng Is Nothing Then
          Debug.Print "According to Find the worksheet is empty"
         Else
          Debug.Print "According to Find the last cell by row is: " & Replace(Rng.Address, "$", "")
        End If
        Set Rng = .Cells.Find("*", .Range("A1"), xlFormulas, , xlByColumns, xlPrevious)
         If Rng Is Nothing Then
          Debug.Print "According to Find the worksheet is empty"
        Else
          Debug.Print "According to Find the last cell by column is: " & Replace(Rng.Address, "$", "")
         End If
          Debug.Print "!!! Notice that Find can ""see"" B7 but not F3."
    
        Debug.Print ""
        Set Rng = .Cells.SpecialCells(xlCellTypeLastCell)
        If Rng Is Nothing Then
           Debug.Print "According to SpecialCells the worksheet is empty"
        Else
          Debug.Print "According to SpecialCells the last row is: " & Rng.Row
          Debug.Print "According to SpecialCells the last column is: " & Rng.Column
         End If
    
      End With
    
    End Sub
    Function ColNumToCode(ByVal ColNum As Long) As String
    
      Dim Code As String
      Dim PartNum As Long
    
      ' Last updated 3 Feb 12.  Adapted to handle three character codes.
       If ColNum = 0 Then
        ColNumToCode = "0"
      Else
        Code = ""
        Do While ColNum > 0
          PartNum = (ColNum - 1) Mod 26
          Code = Chr(65 + PartNum) & Code
          ColNum = (ColNum - PartNum - 1) \ 26
         Loop
      End If
    
    End Function
    

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