String manipulation

[wsyeager]

I'm using the new TextFieldParser class and want to find out how to use the "Find" method of the Array object after I parse multiple fields of a line into a string array.

Here is the code:

Private Sub ParseData2()

       Dim fields As String()
       Dim parser As New TextFieldParser("c:\epp\test.txt")

       Try
           parser.SetDelimiters(";")
           parser.TrimWhiteSpace = True
           While Not parser.EndOfData
               ' Read in the fields for the current line
               fields = parser.ReadFields()
               Dim str As String = Array.Find(fields, AddressOf ProductGT11)
           End While
       Catch ex As Exception
           Throw ex
       End Try

   End Sub

   Private Shared Function ProductGT11(ByVal p As String()) As Boolean
      'code here will do the find
   End Function

 

The "AddressOf ProductGT11" inside the ParseData2 sub is giving me a compile time error:

Method 'Private Shared Function ProductGT11(p() as string) as Boolean does not have the same signature as delegate 'Delegate Function Predicate(Of T)(obj as String) As Boolean

 

How can I correct his?

Edited February 19, 2007 by PlausiblyDamp

[Nerseus]

The function ProductGT11 should take a single parameter that matches the type of the array - in your case a string. So the definition should be:

Private Shared Function ProductGT11(ByVal p As String) As Boolean

 

I just removed the parens from the parameter "p".

 

-ner

[PlausiblyDamp]

Not 100% sure and haven't got VS handy to test it but I think the ProductGT11 method should look like

Private Shared Function ProductGT11(ByVal p As String) As Boolean

[wsyeager]

Thanks, that was it!