Question

Convert GUID to String vb.net

Asked by: manfredfield

Hi, We're reading a GUID out of our Active Directory but we need to convert it into a string to be stored as plain text.

I've tried converting it from a byte array, doing casting but nothing seems to work

Please help.

Dim b() As Byte
                        Dim utf As New System.Text.UTF7Encoding()
                        b = utf.GetBytes(result.Properties("msExchMailboxGuid")(0))
                        Dim s As String = utf.GetString(b)

                                  
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Asked On
2009-04-23 at 07:09:44ID24348969
Topic

.NET

Participating Experts
1
Points
500
Comments
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Answers

 

by: alex_pavenPosted on 2009-04-23 at 07:18:33ID: 24215309

Try this:

Dim g as New Guid(bytes)
Dim s as String = g.ToString()

                                              
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by: alex_pavenPosted on 2009-04-23 at 07:19:26ID: 24215324

Note: Guid.ToString() accepts an argument that changes the format of the result, if you want it any different from the standard display format of a GUID; see msdn for possible values.

 

by: manfredfieldPosted on 2009-04-23 at 07:21:58ID: 24215360

Hi Alex,

I'm get this now Error      

4      Overload resolution failed because no accessible 'New' can be called without a narrowing conversion:
    'Public Sub New(g As String)': Argument matching parameter 'g' narrows from 'Object' to 'String'.
    'Public Sub New(b() As Byte)': Argument matching parameter 'b' narrows from 'Object' to '1-dimensional array of Byte'.      C:\Development Projects\Projects\Active Directory Sync\Active Directory Sync\Form1.vb      338      29      Active Directory Sync

 

by: alex_pavenPosted on 2009-04-23 at 07:25:53ID: 24215416

I have no idea what exactly your object is; go into debug mode and inspect the variable, then cast it to the underlying type before creating the Guid, probably like this:

Dim g as New Guid(DirectCast(o, Byte()))

20120131-EE-VQP-002

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