Application.StringFromGUID Method

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

Syntax

expression.StringFromGUID(Guid)

expression   A variable that represents an Application object.

Parameters

Return Value
Variant

Remarks

The Microsoft Access 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 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.

Example

The following example returns the value of the s_GUID control on an Employees form in string form and assigns it to a string variable. The s_GUID control is bound to the s_GUID field, one of the system fields added to each replicated table in a replicated database.

  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 = <strong class="bterm">StringFromGUID(</strong>ctl.Value<strong class="bterm">)</strong>
Debug.Print TypeName(strGUID)

End Sub

See Also

• GUIDFromString Method