Question Re: Convert byte to string in Technology Q&A

Convert byte to string

former_member327913 — Wed, 20 Jun 2012 16:18:11 GMT

Hi,

I'm using SAP.Middleware.Connector and call rfc function.

Export table contains field 'GUID' which I receive in .net as Byte[] and in SAP it's defined as RAW.

Now I try to convert Byte() to String.

With my byte varialbe(bytes) I tried already:

System.Text.Encoding.ASCII.GetString(bytes)

System.Text.Encoding.BigEndianUnicode.GetString(bytes)

System.Text.Encoding.Default.GetString(bytes)

System.Text.Encoding.Unicode.GetString(bytes)

System.Text.Encoding.UTF32.GetString(bytes)

System.Text.Encoding.UTF7.GetString(bytes)

System.Text.Encoding.UTF8.GetString(bytes)

no encoding delivers expected result. I expect e.g "E61F13B1A8EB1ED1ADCFF99E54EA0905". This value I'm able to see if I display field GUID in transaction se16 in SAP GUI.

Any idea ?

Thanks in advance.

Re: Convert byte to string

Former Member — Thu, 21 Jun 2012 20:42:14 GMT

Try passing the byte array back into a GUID constructor.

Dim changeBack As String = New Guid(incomingByteArray).ToString

If it comes back with hyphens in it, just get rid of them.

Dim expectedFormat As String = changeBack.Replace("-", "")

Hope that helps!

Re: Convert byte to string

former_member327913 — Fri, 22 Jun 2012 06:57:54 GMT

Hi,

😞 especially close but not yet the final solution

9F7D2FE0C490F12F80A600145E577788 -->What I receive with New Guid(ba).ToString

E02F7D9F90C42FF180A600145E577788 -->What I expect

Thanks,

Re: Convert byte to string

Former Member — Fri, 22 Jun 2012 14:06:42 GMT

The bytes are reversed in the first three segments. Strange. But you might be able to parse it.

9F7D2FE0-C490-F12F-80A6-00145E577788

E02F7D9F-90C4-2FF1-80A6-00145E577788

UPDATED:

Here is the parsing code... not too clunky, I hope.

Dim incomingDataArray() As Byte = g.ToByteArray

Dim newArray(15) As Byte

Dim reverseOne(3) As Byte

Dim reverseTwo(1) As Byte

Dim reverseThree(1) As Byte

Array.Copy(incomingDataArray, 0, reverseOne, 0, reverseOne.Length)

Array.Copy(incomingDataArray, 4, reverseTwo, 0, reverseTwo.Length)

Array.Copy(incomingDataArray, 6, reverseThree, 0, reverseThree.Length)

Array.Reverse(reverseOne)

Array.Reverse(reverseTwo)

Array.Reverse(reverseThree)

Array.Copy(reverseOne, 0, newArray, 0, reverseOne.Length)

Array.Copy(reverseTwo, 0, newArray, 4, reverseTwo.Length)

Array.Copy(reverseThree, 0, newArray, 6, reverseThree.Length)

Array.Copy(incomingDataArray, 8, newArray, 8, 😎

Dim changeBack As String = New Guid(newArray).ToString

Dim expectedFormat As String = changeBack.Replace("-", "")

Message was edited by: Case Ahr