使用字符串作为范围时出错（VBA Excel）

Question

I am trying to use a string to select some cells by using Range(MaPlage), but this doesn't work. Here is the code and how I constructed the string:

Dim MaPlage As String
Dim MyRange As Range
Dim Line As Integer
Dim AdrRD as String
Dim First_Cell As Boolean

First_Cell = True
AdrRD = "A"

For Line = 1 To 100 Step 1
If Sheet.Range(AdrRD & Line).Value = "" Then
    If First_Cell = True Then
        MaPlage = AdrRD & Line
        First_Cell = False
    Else
        MaPlage = MaPlage & ", " & AdrRD & Line
    End If
End If

Next Line

If MaPlage <> "" Then   
    Range(MaPlage).Select
    Selection.EntireRow.Delete
End If

There is an error at "Range(MaPlage).Select"

I have also tried Set MyRange = Range(MaPlage) but it gives me the same error.

Excel gives me the error in French but it's something like: "Error 1004: The 'Range' method from the object '_Global' has failed."

Thanks a lot!

EDIT: I just tried with

For Line = 1 To 40 Step 1

Instead of 100, and it worked correctly. Does this mean that when the selection goes all the way to line 100 it is to big ?

Answer 1

It would appear maximum address length in Excel is 255 characters.

However you almost never need to build an address as a string.

Dim MyRange As Range
Dim c As Range
Dim Line As Long

For Line = 1 To 100
  Set c = Sheet.Cells(Line, "A")
  If Len(c.Value) = 0 Then
    If MyRange Is Nothing Then
        Set MyRange = c
    Else
        Set MyRange = Application.Union(MyRange, c)
    End If
  End If
Next

MyRange.EntireRow.Delete

Depending on the size of the sheet's UsedRange and your needs, you might get away with simply doing

Sheet.Range("A1:A100").SpecialCells(xlCellTypeBlanks).EntireRow.Delete

but this can raise an error if it doesn't find any cells, and it can cause the SelectionChange event to fire for no reason (Excel bug IMO).