.NET for Progress Programmers

1. progressTrainer@live.com info@proWill.nl proWillvanBeek http://nl.linkedin.com/in/proWill +316 2206 8535 .NET for Progress Programmers Data Orientation vs Object Orientation Event Handling in .NET Will van Beek Independent Consultant www.proWill.nl 1 april 2012

2. Data Oriented (DOP)  Object Oriented (OOP) Event Handling in .NET .NET for Progress Programmers

3. Data Oriented (DOP)  Object Oriented (OOP) Datastructures – Progress 4GL  .NET Differences – DOP  OOP Datastructures – Examples Record Buffer  Customer class Building a Temp-Table/DataTable Building an Iterator Event Handling in .NET .NET for Progress Programmers

4. Progress 4GL/ABL Collection – CustNum – Name – Address – Address2 – City – State – Country – Phone – Contact – SalesRep – Comments – CreditLimit – Balance – Terms – Discount – PostalCode – Fax – Email Data Orientation and Object Orientation – DataStructures. • .NET • Primitive Datatypes • DataSet • Temp-Table • Extent • Primitive Datatypes • DataSet • DataTable • Array • , Map, Hash, List, Tree, Dictionary, Bag, Set, Stack, Queue Naming only a few !

5. Data Oriented (DOP)  Object Oriented (OOP) Datastructures – Progress 4GL  .NET Differences – DOP  OOP Datastructures– Examples Record Buffer  Customer class Building a Temp-Table/DataTable Building an Iterator Event Handling in .NET .NET for Progress Programmers

6. Progress 4GL/ABL DOP OOP – the Difference is in the Language. • Data is in the Record Buffer • FIND, FOR EACH, QUERY separated from the data • .NET • Data is in Objects • Data and Operations (methods) are encapsulated

7. Data Oriented (DOP)  Object Oriented (OOP) Datastructures – Progress 4GL  .NET Differences – DOP  OOP Datastructures– Examples Record Buffer  Customer class Building a Temp-Table/DataTable Building an Iterator Event Handling in .NET .NET for Progress Programmers

8. Data Oriented (DOP)  Object Oriented (OOP) Datastructures – Progress 4GL  .NET Differences – DOP  OOP Datastructures– Examples Record Buffer  Customer class Building a Temp-Table/DataTable Building an Iterator Event Handling in .NET .NET for Progress Programmers

9. DataStructure examples – the customer class • The Record Buffer through .NET eyes

10. DataStructure examples – the customer class • The Record Buffer through .NET eyes

11. Data Oriented (DOP)  Object Oriented (OOP) Datastructures – Progress 4GL  .NET Differences – DOP  OOP Datastructures– Examples Record Buffer  Customer class Building a Temp-Table/DataTable Building an Iterator Event Handling in .NET .NET for Progress Programmers

12. DataStructure examples – Building a dataTable • The Temp-Table through .NET eyes dataField.cls + name + stringValue dataField.cls + name + stringValue dataField.cls + name + stringValue dataRecord.cls + dataFields dataRecord.cls + dataFields dataRecord.cls + dataFields dataField.cls + name + stringValue dataFieldCollection.cls + count + item as dataField (extent) + add(name,stringValue) dataRecordCollection.cls + count + item as dataRecord (extent) + add(name,stringValue) dataRecord.cls + dataFields dataTable.cls + entity + dataRecords model.cls + loadData(tableName, fieldList, condition) test.p + fetchData + displayData

13. Demo

14. Data Oriented (DOP)  Object Oriented (OOP) Datastructures – Progress 4GL  .NET Differences – DOP  OOP Datastructures– Examples Record Buffer  Customer class Building a Temp-Table/DataTable Building an Iterator Event Handling in .NET .NET for Progress Programmers

15. DataStructure examples – Building an Iterator • Iterating / Looping through .NET eyes

16. Demo

17. Data Oriented (DOP)  Object Oriented (OOP) Event Handling in .NET Triggering  Publishing The need for Event Argument Classes .NET events – Examples Defining the event Subscribing to the event Publishing the event .NET for Progress Programmers

18. Data Oriented (DOP)  Object Oriented (OOP) Event Handling in .NET Triggering  Publishing The need for Event Argument Classes .NET events – Examples Defining the event Subscribing to the event Publishing the event .NET for Progress Programmers

19. Event Handling in Progress – Triggering an event • Triggering – You’re gonna hit only one Trigger code

20. Event Handling in .NET – Publishing an event • Publishing – You may hit many Event handler

21. Event Handling in .NET – Publishing an event • Publishing – examples public protected private define event <event-name> void () <event-name>:Publish ()

22. Event Handling in .NET – Subscribing to an event • Subscribing – examples Not subscribed Subscribing tool <sender>:<event-name>:Subscribe (<name-eventhandler>)

23. Event Handling in .NET – Refurbishing the demo • Events provide loose coupling model.cls + loadData(tableName,fields, condition) viewCollection.cls presenter.cls • - addEntity(tableName,fields, • condition) Salesrep Customer Order Orderline

24. Data Oriented (DOP)  Object Oriented (OOP) Event Handling in .NET Trigger code  Event handlers Triggering  Publishing The need for Event Argument Classes .NET events – Examples Defining the event Subscribing to the event Publishing the event .NET for Progress Programmers

25. Event Handling in .NET – The need for event argument classes • Contents • Sender Ильинка, ул № 23103132, г. МоскваРоссия

26. Demo

27. Thanks you foryour time

28. Keep in touch www.proWill.nl progressTrainer@live.com info@proWill.nl proWillvanBeek http://nl.linkedin.com/in/proWill +316 2206 8535