How to use replace when making one variable = two others instead of just one

Question

Okay this one might be a little tougher. I'm using VB that looks like this:

string = Replace(string.ToLower, chr(63), "A")

But I also want chr(63) = "B" as well, like this:

string = Replace(string.ToLower, chr(63), "B")

My problem is that when chr(63) is at the end of a string I need it to be B, and when it's not the end I need it to be A. I suppose that I can use an if/then/else statement. Is there a way to do this?

Example:

XXXXXchr(63)XXXXX = A

but

XXXXXXXXXXchr(63) = B

Thanks!

Answer 1

string = Replace(string.ToLower, chr(63), "A", 1, Len(string) - 1)
If Right(string, 1) = chr(63) then
   Mid$(string, Len(string), 1) = 'B'
End if

Update: in response to comment:

• VB String Functions

• VB String Array Functions - Split, Join, Filter (very useful)

Answer 2

I haven't used Visual Basic since version 6, but it should be something like this:

If Robert.EndsWith(chr(63)) Then
    Robert = Left(Robert, Robert.Length - 1) + "B"
End If

Then do the usual replacement with A.

Answer 3

This ought to do it

    Dim s As String 
    Dim char63 As String = Convert.ToChar(63).ToString
    If s.EndsWith(char63) Then
        s = s.Substring(0, s.Length - 1) & "B"
    End If
    s = s.Replace(char63, "A")