GUIDFromString Function

Description

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

Syntax

GUIDFromString(stringexpression)

The GUIDFromString function has the following argument.

Argument	Description

stringexpression	A string expression which evaluates to a GUID in string form.

Remarks The Microsoft Jet database engine stores GUIDs as arrays of type Byte. However, Microsoft Access can't return Byte data from a control on a form or report. In order 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 to a GUID, use the GUIDFromString function.

See Also StringFromGUID function.

Example

The following example uses the GUIDFromString function to convert a string to a GUID. The string is a GUID stored in string form in a replicated Employees table. The field, s_GUID, is a hidden field added to every replicated table in a replicated database.

Sub CheckGUIDType()
    Dim dbs As Database, rst As Recordset

    Set dbs = CurrentDb
    Set rst = dbs.OpenRecordset("Employees")
    Debug.Print rst!s_GUID
    Debug.Print TypeName(rst!s_GUID)
    Debug.Print TypeName(GuidFromString(rst!s_GUID))
End Sub