vlookup in vb

[erables40]

Ok here is what I am trying to do. I have a worksheet called "main"
and another called "database''
I want to lookup the value in cell B1 in "main'' worksheet in the
"database'' worksheet which is in column A.
Once found I want it to go to column CB in that same row and subtract
1 from the value there.

I know how to use vlookup to find a value but I figured to subtract 1
from that value a must use a macro, and I am stumped

How can I do this
Thanks in advance

 

[Dave Peterson]

Option Explicit
Sub testme()

Dim res As Variant
Dim LookupRng As Range
Dim myCell As Range

With Worksheets("database")
Set LookupRng = .Range("b:b")
End With

Set myCell = Worksheets("main").Range("B1")

res = Application.Match(myCell.Value, LookupRng, 0)
If IsError(res) Then
MsgBox "Not found!"
Else
With LookupRng.Parent.Cells(res, "CB")
If IsNumeric(.Value) Then
.Value = .Value - 1
Else
MsgBox "Not numeric!"
End If
End With
End If
End Sub

 

[John_John]

Hi!

You are looking for something like the function below:

Option Explicit

Private Function MyVLOOKUP( _
ByVal LookUpValue As Variant, _
ByVal rngTableArray As Range, _
Optional intCol As Integer = 1, _
Optional fRangeLookUp As Boolean) As Range

Dim lngRow As Long

On Error GoTo LookUpError
With rngTableArray
lngRow = Application.WorksheetFunction.Match( _
Arg1:=LookUpValue, _
Arg2:=.Range("A1").EntireColumn, _
arg3:=fRangeLookUp)
Set rngTableArray = .Cells(lngRow, intCol)
End With

Set MyVLOOKUP = rngTableArray

ExitProc:
Exit Function
LookUpError:
Err.Raise Err.Number, Err.Source, Err.Description
Err.Clear
Resume ExitProc

End Function


Test it with this makro:

Sub SubtractValue()
Dim varLookUpValue As Variant
Dim rngRet As Variant
Dim rngTable As Range

varLookUpValue = Sheets("main").Range("B1").Value
Set rngTable = Sheets("database").Range("A:CB")

On Error Resume Next
Set rngRet = MyVLOOKUP(varLookUpValue, rngTable, rngTable.Columns.Count)

If rngRet Is Nothing Then
MsgBox "Value not found!", vbExclamation
ElseIf Not IsNumeric(rngRet) Then
MsgBox rngRet & " in " & rngRet.Parent.Name _
& " is not numeric!", vbExclamation
Else
rngRet.Value = rngRet.Value - 1
MsgBox "The new value of " & rngRet.Address(False, False) _
& " in " & rngRet.Parent.Name & " is " & rngRet.Value,
vbInformation
End If

End Sub

 

[erables40]

Hi!

You are looking for something like the function below:

Option Explicit

Private Function MyVLOOKUP( _
    ByVal LookUpValue As Variant, _
    ByVal rngTableArray As Range, _
    Optional intCol As Integer = 1, _
    Optional fRangeLookUp As Boolean) As Range

    Dim lngRow As Long

    On Error GoTo LookUpError
    With rngTableArray
        lngRow = Application.WorksheetFunction.Match( _
            Arg1:=LookUpValue, _
            Arg2:=.Range("A1").EntireColumn, _
            arg3:=fRangeLookUp)
    Set rngTableArray = .Cells(lngRow, intCol)
    End With

    Set MyVLOOKUP = rngTableArray

ExitProc:
    Exit Function
LookUpError:
    Err.Raise Err.Number, Err.Source, Err.Description
    Err.Clear
    Resume ExitProc

End Function

Test it with this makro:

Sub SubtractValue()
    Dim varLookUpValue As Variant
    Dim rngRet As Variant
    Dim rngTable As Range

    varLookUpValue = Sheets("main").Range("B1").Value
    Set rngTable = Sheets("database").Range("A:CB")

    On Error Resume Next
    Set rngRet = MyVLOOKUP(varLookUpValue, rngTable, rngTable.Columns.Count)

    If rngRet Is Nothing Then
        MsgBox "Value not found!", vbExclamation
    ElseIf Not IsNumeric(rngRet) Then
        MsgBox rngRet & " in " & rngRet.Parent.Name _
            & " is not numeric!", vbExclamation
    Else
        rngRet.Value = rngRet.Value - 1
        MsgBox "The new value of " & rngRet.Address(False, False)_
            & " in " & rngRet.Parent.Name & " is " & rngRet.Value,
vbInformation
    End If

End Sub

Thanks the first one worked great