Using dictionary to create vlookup

tiredofit

Well-known Member
Joined
Apr 11, 2013
Messages
1,926
Office Version
  1. 365
  2. 2019
Platform
  1. Windows
This is in Sheet1:

Code:
[TABLE="width: 72"]
<tbody>[TR]
[TD]SupplierID
[/TD]
[/TR]
[TR]
[TD="align: right"]1
[/TD]
[/TR]
[TR]
[TD="align: right"]2
[/TD]
[/TR]
[TR]
[TD="align: right"]3
[/TD]
[/TR]
</tbody>[/TABLE]



This is in Sheet2:

Code:
[TABLE="width: 301"]
<tbody>[TR]
[TD]SupplierID
[/TD]
[TD]SupplierName
[/TD]
[TD]Colour
[/TD]
[TD]IQ
[/TD]
[/TR]
[TR]
[TD="align: right"]3
[/TD]
[TD]Jim
[/TD]
[TD]Red
[/TD]
[TD="align: right"]10
[/TD]
[/TR]
[TR]
[TD="align: right"]1
[/TD]
[TD]Jack
[/TD]
[TD]Blue
[/TD]
[TD="align: right"]20
[/TD]
[/TR]
[TR]
[TD="align: right"]2
[/TD]
[TD]Jill
[/TD]
[TD]Green
[/TD]
[TD="align: right"]30
[/TD]
[/TR]
</tbody>[/TABLE]

This code work perfectly to do a vlookup:

Code:
Option Explicit
Sub test()
Dim DIC As Scripting.Dictionary
Set DIC = New Scripting.Dictionary
Dim LookupArray() As Variant
LookupArray = Worksheets("Sheet2").Range("a1").CurrentRegion.Value
With DIC
        
    Dim i As Long
    
    For i = 2 To UBound(LookupArray, 1)
        
        .Item(LookupArray(i, 1)) = LookupArray(i, 2)
        
        .Item(LookupArray(i, 2)) = LookupArray(i, 3)
    
        .Item(LookupArray(i, 3)) = LookupArray(i, 4)
    
    Next i
        
    Dim SourceArray() As Variant
    
    SourceArray = Worksheets("Sheet1").Range("a1").CurrentRegion.Resize(, 4).Value
    
    For i = 2 To UBound(SourceArray, 1)
        If .Exists(SourceArray(i, 1)) Then
        
            SourceArray(i, 2) = .Item(SourceArray(i, 1))
        
            SourceArray(i, 3) = .Item(SourceArray(i, 2))
        
            SourceArray(i, 4) = .Item(SourceArray(i, 3))
        
        End If
        
    Next i
End With
Worksheets("Sheet1").Range("a1").CurrentRegion.Resize(, 4).Value = SourceArray
Set DIC = Nothing
End Sub

What I am having trouble is if Sheet2 had an extra column like this:

Code:
[TABLE="width: 377"]
<tbody>[TR]
[TD]SupplierID
[/TD]
[TD]abc
[/TD]
[TD]SupplierName
[/TD]
[TD]Colour
[/TD]
[TD]IQ
[/TD]
[/TR]
[TR]
[TD="align: right"]3
[/TD]
[TD]a
[/TD]
[TD]Jim
[/TD]
[TD]Red
[/TD]
[TD="align: right"]10
[/TD]
[/TR]
[TR]
[TD="align: right"]1
[/TD]
[TD]b
[/TD]
[TD]Jack
[/TD]
[TD]Blue
[/TD]
[TD="align: right"]20
[/TD]
[/TR]
[TR]
[TD="align: right"]2
[/TD]
[TD]c
[/TD]
[TD]Jill
[/TD]
[TD]Green
[/TD]
[TD="align: right"]30
[/TD]
[/TR]
</tbody>[/TABLE]

I change the code to this:

Code:
Sub test2()
Dim DIC As Scripting.Dictionary
Set DIC = New Scripting.Dictionary
Dim LookupArray() As Variant
LookupArray = Worksheets("Sheet2").Range("a1").CurrentRegion.Value
With DIC
        
    Dim i As Long
    
    For i = 2 To UBound(LookupArray, 1)
        
        .Item(LookupArray(i, 1)) = LookupArray(i, 3)
        
        .Item(LookupArray(i, 2)) = LookupArray(i, 4)
    
        .Item(LookupArray(i, 3)) = LookupArray(i, 5)
    
    Next i
        
    Dim SourceArray() As Variant
    
    SourceArray = Worksheets("Sheet1").Range("a1").CurrentRegion.Resize(, 5).Value
    
    For i = 2 To UBound(SourceArray, 1)
        If .Exists(SourceArray(i, 1)) Then
        
            SourceArray(i, 3) = .Item(SourceArray(i, 1))
        
            SourceArray(i, 4) = .Item(SourceArray(i, 2))
        
            SourceArray(i, 5) = .Item(SourceArray(i, 3))
        
        End If
        
    Next i
End With
Worksheets("Sheet1").Range("a1").CurrentRegion.Resize(, 5).Value = SourceArray
Set DIC = Nothing
End Sub

but it doesn't return the colour column.

What is wrong?

Thanks
 
Last edited:

Excel Facts

Using Function Arguments with nested formulas
If writing INDEX in Func. Arguments, type MATCH(. Use the mouse to click inside MATCH in the formula bar. Dialog switches to MATCH.
Could you please explain what you want to do?
 
Upvote 0

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