Using Dictionary.Exists in a UserForm property is giving Error 404 object required
The Exists method is called like this:
Dictionary.Exists(Key)So try
Public Property Let ProjectOption(ByVal OptName As String, ByVal OptValue As String) If Not DicOption.Exists(OptName) Then DicOption.Add key:=OptName, Item:=OptValue Else DicOption(OptName) = OptValue End IfEnd Property
A Scripting.Dictionary will implicitly call its Add method if you assign to a key that doesn't exist, so if the goal is to "add or replace" the value at the specified key, you could simply replace:
If Not DicOption(OptName).Exists Then DicOption.Add key:=OptName, Item:=OptValueElse DicOption(OptName) = OptValueEnd Ifwith:
DicOption.Item(OptName) = OptValue