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dynamic data to class. Best way to accomplish this...

Posted on 2004-03-23
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suppose I have a function that aggregrates data from different sources (Mostly SQL sources), and then suppose I have a class (DLL or in another way) that exports this data.

Now,
I do not know the extend of the aggregrated data...it could contain financial fields, or quotation fields, or other type of data...
therefor I do not know beforehand how large and what type (what fields) I need to pass to my Class...

How can I set this up that the Class will accept the data in some sort of structure of collection so I can process that data. I usually need the fieldname/Value pair for processing in the class. Do I use collections? Or structures? But can these structures be build dynamic so it will accomendate for the differente types of fields/data...

simply put, How Can I build a generic data harvester/exporter?
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Question by:EnolaKotrotsos
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inthedark earned 2000 total points
ID: 10655970
Have you thought of using a disconnect ADO recordset?  All the code is there to convert to string and back.  Would you like a code sample?
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by:EnolaKotrotsos
ID: 10655987
Yes, that would be terrific...And I think that will work....
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by:inthedark
ID: 10656029
I built a magic collection class that dynamically creates fields and sub instances of itself it works a bit like a handbag.  I use it as a common data transport between classes.  It saves having to define a UDT or class for every little thing.

I use arrays instead of collections as they are faster.  But I created a version that uses collections and posted some sample code here.

zMagicClass coe is here:
http://www.experts-exchange.com/Databases/MS_Access/Q_20403690.html


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by:inthedark
ID: 10656120
Disconnected recordset example:

http://www.experts-exchange.com/Programming/Programming_Languages/Visual_Basic/Q_20638939.html?query=disconnected+recordset+ford+bbc&searchType=all

You can save the data in the set using the RS.Save method.  And you can reopen the data using a simple RS.Open "C:\MyFolder\MyFile.xxx"
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by:EnolaKotrotsos
ID: 10656150
fantastic, thanks a million...
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