Question

Formatting Hex Values

Asked by: Mr_Fulano

Hi, I'm using VB 2005, WinForms. I have a Hex value that I'm trying to format and cannot get it the way I need it to end up.

My string is below:
strforwardingHTAddress is a String
strHTLength is a String

strEndofHTAddress = Hex$(CLng("&H" & strforwardingHTAddress) + CInt(strHTLength))

I'm getting the correct values, but without any leading zeros. I would like it to be in a format like this 0020A100, not 20A100.

I've tried:

String.Format("{0:X8}", Hex$(CLng("&H" & strforwardingHTAddress) + CInt(strHTLength)))

String.Format("{0:XXXXXXXX}", Hex$(CLng("&H" & strforwardingHTAddress) + CInt(strHTLength)))

String.Format("{0:X########}", Hex$(CLng("&H" & strforwardingHTAddress) + CInt(strHTLength)))

String.Format("{0:00000000}", Hex$(CLng("&H" & strforwardingHTAddress) + CInt(strHTLength)))

String.Format("{0:########}", Hex$(CLng("&H" & strforwardingHTAddress) + CInt(strHTLength)))

However, all these approaches drop out the leading zeros.

Any suggestions on how I can solve this?

Thanks,
Fulano

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Asked On
2009-10-31 at 09:14:08ID24860822
Tags

VB 2005

,

VB 2008

Topics

Microsoft Visual Basic.Net

,

.NET

Participating Experts
2
Points
500
Comments
4

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Answers

 

by: quicksilver17Posted on 2009-10-31 at 09:31:00ID: 25710344

 

by: quicksilver17Posted on 2009-10-31 at 09:44:39ID: 25710392

you can try : {0:X4}

 

by: Idle_MindPosted on 2009-10-31 at 13:57:27ID: 25711509

From Mr. Fulano's other question:
http://www.experts-exchange.com/Programming/Languages/.NET/Visual_Basic.NET/Q_24861058.html

Leave 'em as Strings.  You can convert them to Int64s like this:

        Dim HexString As String = "0000A10000500000"
        Dim HexInt64 As Int64 = Convert.ToInt64(HexString, 16)
        Debug.Print(HexString & " Hex = " & HexInt64 & " Decimal")

Now you can perform calculations with them as Int64s.

When you need them back in Hex Format, use something like:

        Dim HexString2 As String = HexInt64.ToString("X").PadLeft(16, "0")
        Debug.Print("HexString2 = " & HexString2)

The output was:

0000A10000500000 Hex = 177021377314816 Decimal
HexString2 = 0000A10000500000

 

by: Mr_FulanoPosted on 2009-10-31 at 14:49:47ID: 31648392

You prior solution answered both of my questions. Very good work!

20120131-EE-VQP-002

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