Insert New Row with Sequential Number after criteria is met - excel

Question

I will admit to being a terrible at code, and have always struggled with Macros... forgive my ignorance.
What I am working on building is a part number index that will create a new sequential number within a numerical series after a macro-button is pressed.
I'd like each button to scan between a range [i.e. 11-0000 (MIN) and 11-9999 (MAX)] and select the max value cell that exists. At that selection point insert an entire new row below with the next + 1 sequential number in the "B" column.
I have my button creating the table row as I would like, however I need help in defining the ".select(=Max(B:B))" and as I understand Max will also limit the # of line items it queries?
I have also been playing with .Range("B" & Rows.CountLarge) with little to no success.
Ideally the 11-**** button [as seen in the screen cap] should insert a sequential number below the highlighted row.
Maybe I'm way over my head, but any guidance even in approach or fundamental structure of the code would help be greatly appreciated!
Private Sub CommandButton1_Click()
Sheets("ENGINEERING-PART NUMBERS").Range("B" & Rows.CountLarge).End(xlUp).Select
ActiveCell.Offset(1, 0).Select
ActiveCell.EntireRow.Insert Shift:=xlDown
ActiveCell.Value = "=ActiveCell + 1"
End Sub
Screen Cap of Spread Sheet

Answer 1

Perhaps there is a simpler solution that I've overlooked, but the below will work.
Insert a module into your workbook and add this code:
Public Sub AddNextPartNumber(ByVal FirstCellInColumn As Range, Optional ByVal PartMask As Variant = "")
Dim Temp As Variant, x As Long, MaxValueFound(1 To 2) As Variant
'Some error checking
If PartMask = "" Then
MsgBox "No part mask supplied", vbCritical
Exit Sub
ElseIf Not PartMask Like "*[#]" Then
MsgBox "Invalid part mask supplied; must end in ""#"".", vbCritical
Exit Sub
ElseIf PartMask Like "*[#]*[!#]*[#]" Then
MsgBox "Invalid part mask supplied; ""#"" must be continuous only.", vbCritical
Exit Sub
End If
'Get the column of data into an array
With FirstCellInColumn.Parent
Temp = .Range(FirstCellInColumn, .Cells(.Rows.Count, FirstCellInColumn.Column).End(xlUp))
End With
'Search through the array and find the largest matching value
For x = 1 To UBound(Temp, 1)
If Temp(x, 1) Like PartMask Then
If MaxValueFound(1) < Temp(x, 1) Then
MaxValueFound(1) = Temp(x, 1)
MaxValueFound(2) = x
End If
End If
Next x
'Output new part number
If MaxValueFound(2) = 0 Then
'This part mask doesn't exist, enter one with 0's at the end of the list
With FirstCellInColumn.Offset(x - 1, 0)
.Value = Replace(PartMask, "#", 0)
.Select
End With
Else
'Get the length of the number to output
Dim NumberMask As String, NumFormatLength As Long
NumFormatLength = Len(PartMask) - Len(Replace(PartMask, "#", ""))
NumberMask = String(NumFormatLength, "#")
'Determine the new part number
MaxValueFound(1) = Replace(MaxValueFound(1), Replace(PartMask, NumberMask, ""), "")
MaxValueFound(1) = Replace(PartMask, NumberMask, "") & Format((MaxValueFound(1) * 1) + 1, String(NumFormatLength, "0"))
'Insert row, add new part number and select new cell
FirstCellInColumn.Offset(MaxValueFound(2), 0).EntireRow.Insert
With FirstCellInColumn.Offset(MaxValueFound(2), 0)
.Value = MaxValueFound(1)
.Select
End With
End If
End Sub
Then, for each button, you write the code like this:
Private Sub CommandButton1_Click()
'this is the code for the [ADD 11-****] button
AddNextPartNumber Me.Range("B16"), "11-####"
End Sub
Private Sub CommandButton2_Click()
'this is the code for the [ADD 22-****] button
AddNextPartNumber Me.Range("B16"), "22-####"
End Sub
This has been written assuming that inserting a new row onto your sheet won't affect other data and that adding new data to the bottom of the table without inserting a row also won't affect other data.
Assuming you're working with a table, by default it should auto-resize to include new data added to the last row.
Good luck learning the ropes. Hopefully my comments help you understand how what I wrote works.