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Compare Enum String

Posted on 2009-04-10
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Last Modified: 2012-05-06
Hi,

I want to compare enum using string value.

i.e

Dim strAlpabet as string ="A"

Select  strAlpabet

      Case .... (A)
            msgbox "Order Number is 1"          

      Case .... (B)
            msgbox "Order Number is 2"          
End Select

How could I do it?

Thank you.
Public Enum Alphabet
 
        A = 1
        B = 2
        C = 3
 
    End Enum

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Question by:emi_sastra
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6 Comments
 
LVL 47

Expert Comment

by:Wayne Taylor (webtubbs)
ID: 24121057
You don't need a Select Case statement in this case. Simply parse the string...

    Dim OrderNumber As Integer = Convert.ToInt32([Enum].Parse(GetType(Alphabet), "A"))

Wayne
0
 
LVL 1

Author Comment

by:emi_sastra
ID: 24121068
Hi webtubbs,

I need using select case.
Please see below code.

Thank you.
Select Case strTrsId
                Case mdlGlobalInv.FakturPenjualanTrsId.NilaiBrg, _
                     mdlGlobalInv.FakturPenjualanTrsId.BiayaAngkut, _
                     mdlGlobalInv.FakturPenjualanTrsId.NilaiDisc, _
                     mdlGlobalInv.FakturPenjualanTrsId.NilaiUangMuka
                    strFieldName = [Enum].GetName(GetType(mdlGlobalInv.FakturPenjualanTrsId), intEnumNumber) & strFieldNilaiKurs
                    strFieldNameToCheck = strFieldName
 
                Case mdlGlobalInv.FakturPenjualanTrsId.NilaiPPNRp, _
                     mdlGlobalInv.FakturPenjualanTrsId.NilaiPPhRp, _
                     mdlGlobalInv.FakturPenjualanTrsId.NilaiMaterai
                    strFieldName = [Enum].GetName(GetType(mdlGlobalInv.FakturPenjualanTrsId), intEnumNumber)
                    strFieldNameToCheck = strFieldName
 
            End Select

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LVL 47

Accepted Solution

by:
Wayne Taylor (webtubbs) earned 2000 total points
ID: 24121082
OK, try something like this....
        Dim strAlpabet As String = "C"
        Select Case CType([Enum].Parse(GetType(Alphabet), strAlpabet), Alphabet)
            Case Alphabet.A
                MsgBox(1)
            Case Alphabet.B
                MsgBox(2)
            Case Alphabet.C
                MsgBox(3)
        End Select

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LVL 1

Author Comment

by:emi_sastra
ID: 24121090
Select Case CType([Enum].Parse(GetType(Alphabet), strAlpabet), Alphabet)

What does it mean? Convert to numeric?

Thank you.
0
 
LVL 47

Expert Comment

by:Wayne Taylor (webtubbs)
ID: 24121096
No, it converts it to the equivalent enumeration value.
0
 
LVL 1

Author Comment

by:emi_sastra
ID: 24121134
Ok.

Thank you very much for your help.
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