Splitting the first part of the string using vb.net

Question

Below is the perfect working code, when i googled for splitting the first part of the string with a delimiter.

But i have a problem because, this code works only when the target framework is 4 How can i convert this code, where it will run in target framework 2

    Public Shared Function FirstFromSplit(ByVal source As String, ByVal delimiter As String) As String
        Dim i = source.IndexOf(delimiter)

       Return If(i = -1, source, source.Substring(0, i))

    End Function

@JayRiggs It works in framework 4 but does not work in framework 2. — Anuya
– Anuya, Commented Oct 3, 2012 at 16:52

Koen · Accepted Answer · 2012-10-03 16:55:58Z

1

As far as know both string-methods exists in 2.0, so I guess it's the return-statement that gives troubles. Try re-writing it in the old style.

Public Shared Function FirstFromSplit(ByVal source As String, ByVal delimiter As String) As String 
     Dim i = source.IndexOf(delimiter) 

     If i < 0 Then
       return source
     Else
       return source.Substring(0, i)
     End if
End Function

answered Oct 3, 2012 at 16:55

Koen

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1 Comment

Mike_OBrien Over a year ago

wouldn't return source.split(delimiter)(0) accomplish the same thing? what am I missing? **Edit: I guess the main difference is split doesn't work(very easily at least) with strings as delimiters.

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