expression.Name(Index)
expression Required. An expression that returns one of the objects in the Applies To list.
Index Required Long. The index number of the hidden field.
Example
This example creates a Web command button with a hidden field, then displays the field's name.
Sub GetHiddenWebFieldName()
With ActiveDocument.Pages(1).Shapes.AddWebControl _
(Type:=pbWebControlCommandButton, _
Left:=100, Top:=100, Width:=100, _
Height:=36).WebCommandButton.HiddenFields
.Add Name:="User", Value:="Power"
MsgBox "The name of the first hidden field is " & .Name(1)
End With
End Sub