Copy paste rows meeting conditions stated from a multiple selection in a drop-down list (with no repetition) - excel

Question

I have:
1) one worksheet named "Data" for my products data base;
2) one worksheet named "Quotation ENG" for products quotations based on selected products from the data base;
3) one worksheet named "Manager" with dropdown lists to make the criteria selections.
Then, I have two pieces of code running fine independently.
One named Sub Quote is for copy-pasting part of the rows from my database to the quotation sheet when a criterion is met,
And one named Sub Worksheet_Change (credits: TrumpExcel) is for enabling multiple selections in a dropdown list.
I'm quite clueless on how to change the code of my Sub Quote module to make the copy-paste operation possible if the dropdown lists enable multiple criteria. ANy guidance is welcome :)
Sub Quote()
Dim Source As Worksheet
Dim Target As Worksheet
Dim Company As String
Dim InfoA As String
Dim Finalrow As Integer
Dim I As Integer
Set Source = Worksheets("Data")
Set Target = Worksheets("Quotation ENG")
Company = Worksheets("Manager").Range("E5").Value 'Where one dropdown list is located.
InfoA = Worksheets("Manager").Range("E7").Value 'Where one dropdown list is located.
Source.Select
Finalrow = Cells(Rows.Count, 1).End(xlUp).Row
For I = 2 To Finalrow
If Cells(I, 1) = Company And Cells(I, 2) = InfoA Then
Source.Range(Cells(I, 16), Cells(I, 23)).Copy Target.Range("A200").End(xlUp).Offset(1, 0).Resize(1, 8)
End If
Next I
Target.Select
Range("A1").Select
End Sub
=============================================================
Private Sub Worksheet_Change(ByVal Target As Range)
Dim Oldvalue As String
Dim Newvalue As String
Application.EnableEvents = True
On Error GoTo Exitsub
If Target.Address = "$E$5" Then
If Target.SpecialCells(xlCellTypeAllValidation) Is Nothing Then
GoTo Exitsub
Else: If Target.Value = "" Then GoTo Exitsub Else
Application.EnableEvents = False
Newvalue = Target.Value
Application.Undo
Oldvalue = Target.Value
If Oldvalue = "" Then
Target.Value = Newvalue
Else
If InStr(1, Oldvalue, Newvalue) = 0 Then
Target.Value = Oldvalue & ", " & Newvalue
Else:
Target.Value = Oldvalue
End If
End If
End If
End If
Application.EnableEvents = True
Exitsub:
Application.EnableEvents = True
End Sub

Answer 1

I refactored some parts of your code and turned the company variable into an array so it can store several values. Please read the comments inside the code.
As a suggestion, try to use Excel structured tables to store your data. It's gonna be easier to work with them in the future.
Replace your current Quote Sub for this:
Sub Quote()
Dim Source As Worksheet
Dim Target As Worksheet
Dim Company() As String ' Converted the company variable to an array
Dim InfoA As String
Dim Finalrow As Integer
Dim counter As Integer
Dim I As Integer
Set Source = Worksheets("Data")
Set Target = Worksheets("Quotation ENG")
Company = Split(Worksheets("Manager").Range("E5").Value, ",") 'Where one dropdown list is located.
InfoA = Worksheets("Manager").Range("E7").Value 'Where one dropdown list is located.
' Added the source sheet and removed the select as it slows down your code
Finalrow = Source.Cells(Rows.Count, 1).End(xlUp).Row
' Loop through each company contained in the array
For counter = 0 To UBound(Company)
' Loop through each data row
For I = 2 To Finalrow
' Added Company(counter) so you can access each array element and wrapped it with trim to delete extra spaces
If Source.Cells(I, 1) = Trim(Company(counter)) And Source.Cells(I, 2) = InfoA Then
Source.Range(Source.Cells(I, 16), Source.Cells(I, 23)).Copy Target.Range("A200").End(xlUp).Offset(1, 0).Resize(1, 8)
End If
Next I
Next counter
' Activate worksheet
Target.Activate
' Refer to the object full path
Target.Range("A1").Select
End Sub
Let me know if it works.