VBA Access code that checks if a String has “[”, “]” characters





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In the main part of my program I have this code:



If Me!Proveedor = "BIMBO" Then
Me!NombreProducto = Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50)


Nevertheless, when the value of Me!Proveedor has not '[ ]' the code fails.
What I've tried so far is this piece of code:



Me!NombreProducto = iif(InStr(1, Me!Producto, "["), Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50), Left(BuscaNombre("BIMBO", Me!Producto.text), 50)


But Still, if fails. Any idea of why?










share|improve this question































    0















    In the main part of my program I have this code:



    If Me!Proveedor = "BIMBO" Then
    Me!NombreProducto = Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50)


    Nevertheless, when the value of Me!Proveedor has not '[ ]' the code fails.
    What I've tried so far is this piece of code:



    Me!NombreProducto = iif(InStr(1, Me!Producto, "["), Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50), Left(BuscaNombre("BIMBO", Me!Producto.text), 50)


    But Still, if fails. Any idea of why?










    share|improve this question



























      0












      0








      0








      In the main part of my program I have this code:



      If Me!Proveedor = "BIMBO" Then
      Me!NombreProducto = Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50)


      Nevertheless, when the value of Me!Proveedor has not '[ ]' the code fails.
      What I've tried so far is this piece of code:



      Me!NombreProducto = iif(InStr(1, Me!Producto, "["), Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50), Left(BuscaNombre("BIMBO", Me!Producto.text), 50)


      But Still, if fails. Any idea of why?










      share|improve this question
















      In the main part of my program I have this code:



      If Me!Proveedor = "BIMBO" Then
      Me!NombreProducto = Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50)


      Nevertheless, when the value of Me!Proveedor has not '[ ]' the code fails.
      What I've tried so far is this piece of code:



      Me!NombreProducto = iif(InStr(1, Me!Producto, "["), Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50), Left(BuscaNombre("BIMBO", Me!Producto.text), 50)


      But Still, if fails. Any idea of why?







      vba ms-access






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 16 '18 at 13:01









      Erik A

      20.2k62441




      20.2k62441










      asked Nov 16 '18 at 12:50







      user10423230































          1 Answer
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          1














          Don't use IIF if you're returning something that's not valid for one of the conditions! Or better yet, don't use IIF in VBA at all. Just use a normal If statement.



          IIF evaluates the condition, the True part and the False part regardless of if the condition is true. The True part is invalid if the condition is false in your case.



          If InStr(1, Me!Producto, "[") Then
          Me!NombreProducto = Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50)
          Else
          Me!NombreProducto = Left(BuscaNombre("BIMBO", Me!Producto.text), 50)
          End If





          share|improve this answer
























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            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            1














            Don't use IIF if you're returning something that's not valid for one of the conditions! Or better yet, don't use IIF in VBA at all. Just use a normal If statement.



            IIF evaluates the condition, the True part and the False part regardless of if the condition is true. The True part is invalid if the condition is false in your case.



            If InStr(1, Me!Producto, "[") Then
            Me!NombreProducto = Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50)
            Else
            Me!NombreProducto = Left(BuscaNombre("BIMBO", Me!Producto.text), 50)
            End If





            share|improve this answer




























              1














              Don't use IIF if you're returning something that's not valid for one of the conditions! Or better yet, don't use IIF in VBA at all. Just use a normal If statement.



              IIF evaluates the condition, the True part and the False part regardless of if the condition is true. The True part is invalid if the condition is false in your case.



              If InStr(1, Me!Producto, "[") Then
              Me!NombreProducto = Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50)
              Else
              Me!NombreProducto = Left(BuscaNombre("BIMBO", Me!Producto.text), 50)
              End If





              share|improve this answer


























                1












                1








                1







                Don't use IIF if you're returning something that's not valid for one of the conditions! Or better yet, don't use IIF in VBA at all. Just use a normal If statement.



                IIF evaluates the condition, the True part and the False part regardless of if the condition is true. The True part is invalid if the condition is false in your case.



                If InStr(1, Me!Producto, "[") Then
                Me!NombreProducto = Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50)
                Else
                Me!NombreProducto = Left(BuscaNombre("BIMBO", Me!Producto.text), 50)
                End If





                share|improve this answer













                Don't use IIF if you're returning something that's not valid for one of the conditions! Or better yet, don't use IIF in VBA at all. Just use a normal If statement.



                IIF evaluates the condition, the True part and the False part regardless of if the condition is true. The True part is invalid if the condition is false in your case.



                If InStr(1, Me!Producto, "[") Then
                Me!NombreProducto = Left(BuscaNombre("BIMBO", Mid(Me!Producto, InStr(1, Me!Producto, "[") + 1, (InStr(1, Me!Producto, "]")) - (InStr(1, Me!Producto, "[")) - 1)), 50)
                Else
                Me!NombreProducto = Left(BuscaNombre("BIMBO", Me!Producto.text), 50)
                End If






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 16 '18 at 13:03









                Erik AErik A

                20.2k62441




                20.2k62441
































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