MICROSOFT.NET INTEROPERABILITY BLACK BELT – TIPS & TRICKS Vjekoslav Babic (Fortempo)

Vjekoslav Babić consultant, trainer, blogger, author Blog:vjeko.com Author of many How Do I… videos for MSDN and PartnerSource for NAV 2013 and NAV 2013 R2 Co-author of “Implementing Microsoft Dynamics NAV 2009” book ABOUT ME

HOW USERS SEE PROGRAMMERS

HOW PROGRAMMERS SEE USERS

NAV PROGRAMMER PROGRAMMING IN C/AL

NAV PROGRAMMER PROGRAMMING IN.NET

Take.NET Interoperability… … slice it to ribbons… … and then glue it all back together AGENDA

WHAT’S WRONG WITH.NET INTEROPERABILITY?

Part 1 Strong Type

IEnumerable

foreach

for (int i = 0; i < foos.Count(); i++) { Foo f = foos.ElementAt(i); // Do something } foreach (Foo f in foos) { // Do something }

for (int i = 0; i < foos.Count(); i++) { Foo f = foos.ElementAt(i); // Do something } foreach (Foo f in foos) { // Do something }

DON’T DO THIS FOR i := 0 TO Foos.Count - 1 DO BEGIN Foo := Foos.Item(i); END;

DO THIS INSTEAD Enumerator := Foos.GetEnumerator; WHILE Enumerator.MoveNext DO BEGIN Foo := Enumerator.Current; END;

Demo 1 Simple List

System.Object

Demo 2 Not That Simple List

Demo 3 Very Rude Codeunit

Demo 4 A Nice Idea That Fails

Reflection

System.Type

System.Activator

Demo 5 System.Activator

Demo 6 Strongly-Typed Generics

Demo 7 A Nice Idea That Works

Part 2 Error Handling

Demo 8 File.Delete

try..catch

Demo 9 Try..Catch

Part 3 Dependencies

Demo 10 Tight Coupling

PRS.NET

Demo 11 Facade

But there is an even better way.

Inversion of Control Pattern

Demo 12 Inversion of Control

Quick Tip Simple GAC Deployment

Part 4 Auto-Deployment

Demo 13 Client/Server

Demo 14 Auto-Deployment