Application.StringFromGUID (Access)

The StringFromGUID function converts a GUID, which is an array of type Byte, to a string.

The Microsoft Access database engine stores GUIDs as arrays of type Byte. However, Access can't return Byte data from a control on a form or report. To return the value of a GUID from a control, you must convert it to a string. To convert a GUID to a string, use the StringFromGUID function. To convert a string back to a GUID, use the GUIDFromString function. For example, you may need to refer to a field that contains a GUID when using database replication. To return the value of a control on a form bound to a field that contains a GUID, use the StringFromGUID function to convert the GUID to a string.

StringFromGUID (Guid)

Guid: An array of Byte data used to uniquely identify an application, component, or item of data to the operating system.

Public Sub StringValueOfGUID() 
 
 Dim ctl As Control 
 Dim strGUID As String 
 
 ' Get the GUID. 
 Set ctl = Forms!Employees!s_GUID 
 Debug.Print TypeName(ctl.Value) 
 
 ' Convert the GUID to a string. 
 strGUID = StringFromGUID(ctl.Value) 
 Debug.Print TypeName(strGUID) 
 
End Sub