1. Microsoft Ignite NZ
25-28 October 2016
SKYCITY, Auckland

2. C# and Visual Basic Code-focused Development with Visual Studio “15”
Kasey Uhlenhuth
Program Manager
.NET & Visual Studio
@kuhlenhuth

3. Agenda Intro Visual Studio 2015 “Roslyn” Productivity Languages
9/16/ :46 PM
Agenda
Intro Visual Studio 2015 “Roslyn”
Productivity
Languages
Foundation: performance, reliability
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4. Visual Studio 2015 Microsoft 2016 9/16/2018 11:46 PM
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5. Roslyn
Write new features faster
Provide open source API

6. 9/16/ :46 PM
Exploring the power of Roslyn in Visual Studio 2015 & Visual Studio ‘15’
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

7. 9/16/ :46 PM
Exploring the power of Roslyn in Visual Studio 2015 & Visual Studio Next
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

8. Productivity Refactoring support Navigation/search Style enforcement
Microsoft 2016
9/16/ :46 PM
Productivity
Refactoring support
Navigation/search
Style enforcement
Better IntelliSense
Testing
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

9. Productivity Demo 9/16/2018 11:46 PM
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

10. Productivity Takeaways
In-the-box refactorings
Enhanced navigation
Smarter IntelliSense
Configurable code style
Custom analyzers

11. Visual Studio “Next” Visual Studio 2015 C#6.0 & VB14 C#7.0 & VB15
Microsoft 2016
9/16/ :46 PM
C#6.0 & VB14
Go To Implementation
Refactorings/Code Actions
Extract method, inline temporary variable, introduce local, change method signature, remove unnecessary usings/Imports
make method synchronous
adding using/Import from reference assembly
add using/Import for types in NuGet
fuzzy matching
delegate simplifier
convert method to property
C# Interactive
Baseline Diagnostics
Solution-wide analysis toggle/perf improvements
FX Cop rules as analyzers (via NuGet)
C#7.0 & VB15
“Go To” redesign
Suggestion severity
Refactorings/Code Actions
move type to matching file
add missing switch case
convert property to method
use string interpolation
add braces
IntelliSense Improvements
highlighting/filtering
target type preselection
Code Style
prefer var/explicit type, etc.
naming conventions
basic .editorconfig support
Visual Studio 2015
Visual Studio “Next”
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

12. C# 6.0 & Visual Basic 14 String interpolation
Microsoft 2016
9/16/ :46 PM
C# 6.0 & Visual Basic 14
String interpolation
Expression-bodied members
Null-conditional operator
Nameof expressions
Using static
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

13. 9/16/ :46 PM
Language Demo
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

14. C# 7.0 & Visual Basic 15 Tuples Pattern matching Local functions
Microsoft 2016
9/16/ :46 PM
C# 7.0 & Visual Basic 15
Tuples
Pattern matching
Local functions
Ref returns
ValueTask<T>
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

15. Tuples
Return multiple values from a method

16. Pattern matching
Functions can operate over plain old data

17. Local functions
Improve code organization & unclutter IntelliSense

18. 9/16/ :46 PM
Language Demo
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

19. C# 7.0 & Visual Basic 15 Tuples Pattern matching Local functions
Microsoft 2016
9/16/ :46 PM
C# 7.0 & Visual Basic 15
Tuples
Pattern matching
Local functions
Ref returns
ValueTask<T>
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

20. C# 7.0 & Visual Basic 15 Tuples Pattern matching Local functions
Microsoft 2016
9/16/ :46 PM
C# 7.0 & Visual Basic 15
Tuples
Pattern matching
Local functions
Ref returns
ValueTask<T>
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

21. Performance on large solutions
Microsoft 2016
9/16/ :46 PM
Performance on large solutions “
Performance is the biggest issue. It takes an actual minute or so to start VS. Similarly loading projects can be painfully slow. ”
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

22. Full Solution Analysis
9/16/ :46 PM
Full Solution Analysis
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

23. 9/16/ :46 PM
CodeLens
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

24. Out-of-process Visual Studio Next
9/16/ :46 PM
Out-of-process Visual Studio Next
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

25. Deferred Project Load Visual Studio Next
9/16/ :46 PM
Deferred Project Load Visual Studio Next
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

26. Performance Recap Out-of-process Deferred Project load
9/16/ :46 PM
Performance Recap
Out-of-process
Deferred Project load
More performance tips for large solutions at
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

27. Takeaways Visual Studio 2015 + “Roslyn” Productivity boosts
9/16/ :46 PM
Takeaways
Visual Studio “Roslyn”
Productivity boosts
New Language features
Foundation: performance, reliability
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

28. Related Sessions
The Power of Roslyn: Improving Your Productivity with Live Code Analyzers [M344]

29. Resources GitHub Repo: http://roslyn.io
Microsoft 2016
9/16/ :46 PM
Resources
GitHub Repo:
Performance tips:
Roslyn Twitter:
C# Interactive Walkthrough:
Writing Custom Analyzers:
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

30. 9/16/ :46 PM
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.