Reverse String

I know this may seem pretty simple to most but I need to reverse a string. So like if the user types "WX YZ" I want the output to be "ZY XW" Is there a way to do that using a loop?

Thanks in advance.

VB Code:

Dim s As String = "This is the string"
        Dim ReverseString As String = ""
        For i As Integer = s.Length - 1 To 0 Step -1
            ReverseString &= s.Substring(i, 1)
        Next

that should do it, although there may be a better way using the .Reverse property of arrays
kevin

If you want to do it without a loop...

VB Code:

Dim h As String = "Hello"
Dim chars As Char() = h.ToCharArray
Array.Reverse(chars)
h = New String(chars)

i though you could do it w/o a loop, i just didn't know how to get from the char array back to a string. cool :cool: :thumb:

Hi,

Wont something like the following do it:

Label1.Text = StrReverse(TextBox1.Text)

HTH

Alan

That shoud be deprecated these days.

Quote:

---

Originally Posted by DNA7433

That shoud be deprecated these days.

---

just curious, but why?

Quote:

---

Originally Posted by kebo

just curious, but why?

---

Because its an old vb6 function you should always use .net .

Quote:

---

Originally Posted by Asgorath

Because its an old vb6 function you should always use .net .

---

is it not managed by the CRL?

Is there a guide for these old functions somewhere that points to the appropriate .NET version? For example, I'm being taught in class to use the IsNumeric() function to do some basic validation. Is this a VB6 hold-over? If so, what's the .NET equivalent? I'd love to find a link or document somewhere so that I can lookup whether or not a function/method is a VB6 holdover and find the replacment .NET function/method. I don't really have a frame of reference since I'v done virtually no VB6 programming and what little bit I HAVE done was over 6 years ago.

Thanks,

Steve

Quote:

---

Originally Posted by kebo

is it not managed by the CRL?

---

no it is.. but its basically included in the framework for backwards compatibility to help VB6 programmers upgrade apps easier... to make the VB6 to VB.NET upgrade wizard produce less errors you have to fix.. etc...

generally the .net ways you can accomplish the same task tend to be better on performance than the VB6 compatibilty functions (even though I will admin some will show little to no difference over all, possibly in some massive loops or complex coding)

but like I said before, its better just from a .net programmer standpoint if you need to work on C# or something, it will be much easier if you stick to the core of the .net framework

Quote:

---

Originally Posted by kleinma

generally the .net ways you can accomplish the same task tend to be better on performance than the VB6 compatibilty functions (even though I will admin some will show little to no difference over all, possibly in some massive loops or complex coding)

---

this is probably true but with out taking performance into account,

VB Code:

Label1.Text = StrReverse(TextBox1.Text)

is easier to read and code than

VB Code:

Dim chars As Char() = TextBox1.Text
Array.Reverse(chars)
Label1.Text = New String(chars)

Having said that though, I would still prefer to do it the .net way.
kevin