Or make an Extension Method so the usage is more fluent:

   if (!tcValue.IsNullOrEmpty())
   {
       lcValue = tcValue;
   }

>I'd use the string.IsNullOrEmpty() method instead:
>
>

>        Public Function GetNonNullable(ByVal tcValue As String) As String
>            Dim lcValue As String= ""
>
>            ' If we have a value
>            If Not string.IsNullOrEmpty(tcValue) Then
>                lcValue = tcValue
>            End If
>
>            Return lcValue
>        End Function
>

>
>~~Bonnie
>
>
>>>In String you need to omit ?. String is not a simple type like integer, for example. So, you can pass null without declaring string?, just declare parameter as string.
>>
>>So, the adjustment I made is this:
>>
>>

>>        ' Avoid to receive a null
>>        ' expC1 Value
>>        Public Function GetNonNullable(ByVal tcValue As String) As String
>>            Dim lcValue As Integer = ""
>>
>>            ' If we have a value
>>            If Not tcValue Is DBNull.Value Then
>>                lcValue = tcValue
>>            End If
>>
>>            Return lcValue
>>        End Function
>>