Comparing value of cells from two different sheets - vba

Question

First my code:
Option Explicit
Sub UpdateCandidates()
Application.ScreenUpdating = False
Dim wks As Worksheet, wks2 As Worksheet
Dim Lastrow As String, Lastrow2 As String
Dim Rng As Range, i As Long, Rng2 As Range, i2 As Long
Dim cell As Variant, cell2 As Variant
Set wks = ThisWorkbook.Worksheets("Candidates")
Lastrow = wks.Range("B" & Rows.Count).End(xlUp).Row
If Lastrow > 1 Then
cell = wks.Range("B2:B" & Lastrow).Value
i = 1: Set Rng = Nothing
While i <= Lastrow
For i = i To Lastrow
Set wks2 = ThisWorkbook.Worksheets("Job live")
Lastrow2 = wks2.Range("A" & Rows.Count).End(xlUp).Row
If Lastrow2 > 1 Then
cell2 = wks2.Range("A2:A" & Lastrow2).Value
i2 = 1: Set Rng2 = Nothing
While i2 <= Lastrow2
For i2 = i2 To Lastrow2
If cell = cell2(i2, 1) Then
MsgBox ("found")
End If
Next
Wend
End If
Next
Wend
End If
Application.ScreenUpdating = True
End Sub
This basically works and compares the two columns but at the end it shows an error:
"Subscript out of range"
I don't understand why. I thought it's because of <= Lastrow but fixing to < Lastrow doesn't change anything.
I also would like to copy a value from the first sheet to the second one to a particular cell. And also insert a row below the cell from my second sheet.
I also don't understand why I have to compare cell to cell2(i2,1) and not cell to cell2. If I compare cell to cell2 it says type mismatch. And I have the same error if I enter a second value in my sheets.
What's wrong with my code?

Answer 1

I see your code, and here's a proposal
Option Explicit
Sub CompareDefinedRanges()
Dim rng1, rng2 As Range
Dim found As Boolean
Dim i, j, foundAt As Integer
Set rng1 = Worksheets("Candidates").Range("B2", Worksheets("candidates").Range("B2").End(xlDown).Address)
Set rng2 = Worksheets("Job live").Range("A2", Worksheets("Job Live").Range("A2").End(xlDown).Address)
'show items
For i = 1 To rng1.Rows.Count
found = False
foundAt = 0
For j = 1 To rng2.Rows.Count
If rng1.Item(i) = rng2.Item(j) Then
found = True
foundAt = j
End If
Next j
If found Then
MsgBox rng1.Item(i).Value & " found at " & CStr(foundAt), , "Candidates"
Else
MsgBox rng1.Item(i).Value & " not found", , "Candidates"
End If
Next i
Set rng1 = Nothing
Set rng2 = Nothing
End Sub