Accessing an Array/Vector by field name

[Tafalla]

Hey gents,

I was wondering if there is any way to create and then access to the pieces of the arrays/vectors by field names instead of by position.

That's what I mean, could I create something similar like this;

          Dim MyFriend

                 MyFriend=(name="mike",last="Miller"....)

'  and then access by name

                someone=MyFriend(name)

I'm working with some large arrays and therefore is hard to remember which field is in which position

Thanks!!

Javier

[Walter_Rick]

Hi Javier,

I’m not sure whether I understand you correct – so I assume with “array/vector” you meant a channel in DIAdem. If so, you have the DATA-API in DIAdem since several years. Here are some examples (based on the dataset “Example_Data.TDM” which is installed with DIAdem):

Dim oMyFriend
set oMyFriend = Data.GetChannel("[1]/Speed")
' ...
msgbox oMyFriend.Size

' ...
' or 
' ...

Dim oMyListOfFriends
set oMyListOfFriends = Data.CreateElementList
oMyListOfFriends.Add(oMyFriend)
oMyListOfFriends.Add(Data.GetChannel("[1]/Torque"))
' ...
msgbox oMyListOfFriends(1).Name
msgbox oMyListOfFriends(oMyListOfFriends.Count).Name

Do you mean those things?

Greetings

Walter

[AndreasK]

There is a dicitionary object that can be used for lookups

Set Dict = CreateObject("Scripting.Dictionary")
Call Dict.Add("Mike", "Miller")

IF Dict.Exists("Mike") THEN
  dim someone : someone = dict.Item("Mike") 
end if

 Compare can be set to text compare. Check dictionary in the DIAdem help.

The second argument can also be a class object which is assigned by use of "set".

[Tafalla · Accepted solution]

Hey AndreasK, thanks!!,

The "dictionary" was exactly what I meant, an "associative array". This solves my "problem"!! I used to work with similar sintax in other languages and working w/o it was being painful!!!

Walter_Rick thanks also for answering!!!

Javier