Change code IF to CASE

Hi.
I would like to change this structure IF to CASE.
can anyone help me?
Thank you!

Sub TestCase()
    Dim LR As Long
    Rows(6).Resize(100).Delete
    If Range("a2") = "" And Range("b2") <> "" And Range("c2") <> "" Then
    
    With Sheets("test").UsedRange
        .AutoFilter Field:=3, Criteria1:=Range("b2")
        .AutoFilter Field:=11, Criteria1:=Range("c2")
        .Copy Range("a6")
        .AutoFilter
    End With
    ElseIf Range("a2") <> "" And Range("b2") = "" And Range("c2") <> "" Then
    
    With Sheets("test").UsedRange
        .AutoFilter Field:=1, Criteria1:=Range("a2")
        .AutoFilter Field:=11, Criteria1:=Range("c2")
        .Copy Range("a6")
        .AutoFilter
    End With
    ElseIf Range("a2") <> "" And Range("b2") <> "" And Range("c2") = "" Then
     With Sheets("test").UsedRange
        .AutoFilter Field:=1, Criteria1:=Range("a2")
        .AutoFilter Field:=3, Criteria1:=Range("b2")
        .Copy Range("a6")
        .AutoFilter
    End With
    
    ElseIf Range("a2") = "" And Range("b2") = "" And Range("c2") <> "" Then
     With Sheets("test").UsedRange
        .AutoFilter Field:=11, Criteria1:=Range("c2")
        .Copy Range("a6")
        .AutoFilter
    End With
    
    ElseIf Range("a2") <> "" And Range("b2") = "" And Range("c2") = "" Then
     With Sheets("test").UsedRange
        .AutoFilter Field:=1, Criteria1:=Range("a2")
        .Copy Range("a6")
        .AutoFilter
    End With
    
    ElseIf Range("a2") = "" And Range("b2") <> "" And Range("c2") = "" Then
     With Sheets("test").UsedRange
        .AutoFilter Field:=3, Criteria1:=Range("b2")
        .Copy Range("a6")
        .AutoFilter
    End With
    
    Else
   With Sheets("test").UsedRange
        .AutoFilter Field:=1, Criteria1:=Range("a2")
        .AutoFilter Field:=3, Criteria1:=Range("b2")
        .AutoFilter Field:=11, Criteria1:=Range("c2")
        .Copy Range("a6")
        .AutoFilter
    End With

    End If
End Sub

Thank's


Cross-Post
http://www.excelkey.com/forum/viewto...7&p=3566#p3566