Ignore case in IF comparision

Question

Is there an easy way to do this comparision with ignorecase ON?

If file.Extension = ".Lnk" Then MsgBox(file.Extension)

What i'm trying to do is to get all the ".lnk" or ".LNK" or ".lNk" or " ".Lnk" etc...

I know this is possibly with RegEx but... there's an easy way for that example?

Thankyou for read

Answer 1

Convert the extension to lowercase using ToLower and then compare

If file.Extension.ToLower = ".lnk" Then MsgBox(file.Extension)

And forget Regex for this. It's really overkill and inappropriate

Answer 2

Use String.Equals for string comparisons. To ignore case use CurrentCultureIgnoreCase or InvariantCultureIgnoreCase.

If String.Equals("AAA", "aaa", StringComparison.InvariantCultureIgnoreCase) Then

    'more code

End If

MSDN: String.Equals Method (String)

MSDN: Specifying String Comparisons Explicitly

Answer 3

use this for ignore case compare

If String.Compare(file.Extension, ".lnk", True) = 0 Then MsgBox(file.Extension)

change true to false for case sensitive compare

Answer 4

Module Test

Sub Main()
    Dim userString As String = Nothing
    Dim finalString As String = "Jacob"

    Console.WriteLine("Enter username")
    userString = Console.ReadLine()

    If String.Compare(finalString, userString, True) = 0 Then
        Console.WriteLine("Access Granted")
    Else
        Console.WriteLine("Access Denied")
    End If


    Console.ReadLine()

End Sub

End Module