Svetlin Nakov - What's New In CLR 2.0
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The document summarizes updates and new features in Microsoft's .NET Framework. It discusses upcoming releases of Visual Studio that will integrate with new Windows platforms and provide improved developer tools and performance optimizations. It also covers enhancements to SQL Server integration with .NET, moving to 64-bit platforms, improved debugging and security features, and the introduction of generics.
![Generics public class List { private object[] elements; private int count; public void Add(object element) { if (count == elements.Length) Resize(count * 2); elements[count++] = element; } public object this[int index] { get { return elements[index]; } set { elements[index] = value; } } public int Count { get { return count; } } } public class List<T> { private T [] elements; private int count; public void Add( T element) { if (count == elements.Length) Resize(count * 2); elements[count++] = element; } public T this[int index] { get { return elements[index]; } set { elements[index] = value; } } public int Count { get { return count; } } } List intList = new List(); intList.Add(1); intList.Add(2); intList.Add(“3"); int i = (int)intList[0]; List intList = new List(); intList.Add(1); // Argument is boxed intList.Add(2); // Argument is boxed intList.Add(“3"); // Should be an error int i = (int)intList[0]; // Cast required List <int> intList = new List <int> (); intList.Add(1); // No boxing intList.Add(2); // No boxing intList.Add(“3"); // Compile-time error int i = intList[0]; // No cast required C#](https://image.slidesharecdn.com/svetlin-nakov-whats-new-in-clr-204410/85/Svetlin-Nakov-What-s-New-In-CLR-2-0-13-320.jpg)
![Generics in C++ generic<typename T > public ref class List { array <T> ^ elements; int count; public: void Add( T element) { if (count == elements->Length) Resize(count * 2); elements[count++] = element; } property T default [int index] { T get() { return elements[index]; } void set( T value) { elements[index] = value; } } property int Count { int get() { return count; } } }; List<int> ^ intList = gcnew List<int> (); intList->Add(1); // No boxing intList->Add(2); // No boxing intList->Add(“3"); // Compile-time error int i = intList[0]; // No cast required C++](https://image.slidesharecdn.com/svetlin-nakov-whats-new-in-clr-204410/85/Svetlin-Nakov-What-s-New-In-CLR-2-0-16-320.jpg)
![Resources BCL Blog http://weblogs.asp.net/bclteam BCL Website http://www.gotdotnet.com/team/clr/bcl/default.aspx BCL public mail alias [email_address] Reference (Brad Abrams) .NET Framework Standard Library Annotated Reference](https://image.slidesharecdn.com/svetlin-nakov-whats-new-in-clr-204410/85/Svetlin-Nakov-What-s-New-In-CLR-2-0-23-320.jpg)
Svetlin Nakov - What's New In CLR 2.0
- 1. Новости в .NET CLR 2.0 Светлин Наков Българска асоциация на разработчиците на софтуер
- 2. Developer Roadmap “ Orcas” release Windows “Longhorn” integration New UI tools and designers Extensive managed interfaces Visual Studio Orcas “Longhorn” Visual Studio .NET 2003 “ Everett Release” Windows Server 2003 integration Support for .NET Compact Framework and device development Improved performance Visual Studio 2005 “Yukon” “ Whidbey” release SQL Server integration Improved IDE productivity and community support Extended support for XML Web services Office programmability
- 3. Agenda Extending the Platform SQL Server Integration Moving to 64 bit Improving the Platform Performance work RAD Debugging Security improvements Innovating in the Platform Generics support BCL Enhancements
- 4. SQL Server Integration Design Goal Bring framework programming model into the database tier Allow business logic to easily migrate to the most appropriate tier Enable safe database extensions Result : Stored Procedures, Triggers, data types defined in managed code
- 5. SQL CLR Functionality VS .NET Project CLR hosted by SQL (in-proc) Define Location.Distance() Assembly: geom.dll VB, C#, … Build SQL Server SQL Data Definition: create assembly … create function … create procedure … create trigger … create type … SQL Queries: SELECT name FROM Supplier WHERE Location::Distance ( @point ) < 3
- 6. Sql Programming Model Splitting a string The old way…. declare @str varchar(200) select @Str = 'Microsoft Corporation|SQL Server|2003|SQL-CLR|2002-08-20|11:32:00|Document|3.b.3' SELECT substring(@Str + '|', 0 + 1, charindex('|', @Str + '|', 0 + 1) - 0 - 1 ), substring(@Str + '|', charindex('|', @Str + '|') + 1, charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) - charindex('|', @Str + '|') - 1 ), substring(@Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1, charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) - charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) - 1 ), … T-SQL declare @str varchar(200) select @Str = 'Microsoft Corporation|SQL Server|2003|SQL-CLR|2002-08-20|11:32:00|Document|3.b.3' SELECT substring(@Str + '|', 0 + 1, charindex('|', @Str + '|', 0 + 1) - 0 - 1 ), substring(@Str + '|', charindex('|', @Str + '|') + 1, charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) - charindex('|', @Str + '|') - 1 ), substring(@Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1, charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) - charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) - 1 ), substring(@Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1, charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) - charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) - 1 ), substring(@Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1, charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) - charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) - 1 ), substring(@Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) + 1, charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) + 1) - charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) - 1 ), substring(@Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) + 1) + 1, charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) + 1) + 1) - charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) + 1) - 1 ), substring(@Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) + 1) + 1) + 1, charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) + 1) + 1) + 1) - charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|', charindex('|', @Str + '|') + 1) + 1) + 1) + 1) + 1) + 1) - 1 )
- 7. Sql Programming Model Splitting a string Public Shared Sub SplitString() Dim s As String s = "Microsoft Corporation|SQL Server|2003|SQL-CLR|2002-08- 20|11:32:00|Document|3.b.3" Dim myArray() As String = Split(s, "|") End Sub The new way…. VB.NET
- 8. Moving to 64 bit 64 bit for Servers and workstations X64 and IA64 bit support Enable SQL Server 2005 and ASP.NET Verifiable managed binaries just run! Support for WoW64 Enables 32bit apps to run on 64 bit machines 1.0 and 1.1 apps always run in the WoW VS: Runs as a 32bit application You can develop, deploy, and debug 32 and 64bit applications
- 9. Performance Objectives: make .NET an even greater programming platform Long-Term: make the performance characteristics of the CLR similar to native code Reduce marginal cost of additional managed processes Reduce startup time and working set NGen Compiles IL code to native code, saving results to disk Advantages: no need to recompile IL to native code, and class layout already set so better startup time VS 2005: Significant reductions in the amount of private, non-shareable working set OS: ‘no-Jit’ plan, all managed code will be NGened
- 10. Performance everywhere New, Performant APIs APIs for faster resource lookup Lightweight CodeGen: only generates essential code (contrast to Reflect Emit) Existing APIs Improved Cross AppDomain Remoting Between 1.1 and 200x faster. Biggest gains for simpler items (strings, integers, serializable objects) Delegate invoke performance has more than doubled AppDomain Footprints: significantly reduced UTF8Encoding: translation is 2.5x faster
- 11. RAD Debugging Edit and Continue: Edit Code at runtime Allowed Edits: Examples Add private fields to a class Add private non-virtual methods to a class Change a function body, even while stepping Disallowed Edits: Examples Removing fields/methods Edits to generic classes Serialization will not recognize new fields Display Attributes for a better debugging experience
- 12. CLR Security New cryptography support PKCS7 support XML encryption support Enhanced support for X509 certificates Enhanced Application Security Permission Calculator Integration with ClickOnce Debug-In-Zone Managed ACL Support
- 13. Generics public class List { private object[] elements; private int count; public void Add(object element) { if (count == elements.Length) Resize(count * 2); elements[count++] = element; } public object this[int index] { get { return elements[index]; } set { elements[index] = value; } } public int Count { get { return count; } } } public class List<T> { private T [] elements; private int count; public void Add( T element) { if (count == elements.Length) Resize(count * 2); elements[count++] = element; } public T this[int index] { get { return elements[index]; } set { elements[index] = value; } } public int Count { get { return count; } } } List intList = new List(); intList.Add(1); intList.Add(2); intList.Add(“3"); int i = (int)intList[0]; List intList = new List(); intList.Add(1); // Argument is boxed intList.Add(2); // Argument is boxed intList.Add(“3"); // Should be an error int i = (int)intList[0]; // Cast required List <int> intList = new List <int> (); intList.Add(1); // No boxing intList.Add(2); // No boxing intList.Add(“3"); // Compile-time error int i = intList[0]; // No cast required C#
- 14. Generics Why generics? Compile-time type checking Performance (no boxing, no downcasts) Reduced code bloat (typed collections) VB, C#, MC++ produce & consume generics Use generics freely in internal APIs Consider using generics in public APIs Generics are not yet in CLS To be CLS compliant, provide a non-generic API alternative Microsoft is actively pursuing standardization of generics in runtime and languages
- 15. Generics in VB Public Class List(Of ItemType ) Private elements() As ItemType Private elementcount As Integer Public Sub Add(ByVal element As ItemType ) If elementcount = elements.Length Then Resize(elementcount * 2) elements(elementcount) = element count += 1 End Sub Public Default Property Item(ByVal index As Integer) As ItemType Get Return elements(index) End Get Set (ByVal Value As ItemType ) elements(index) = Value End Set End Property Public ReadOnly Property Count As Integer Get Return elementcount End Get End Property End Class Dim intList As New List(Of Integer) intList.Add(1) ‘ No boxing intList.Add(2) ‘ No boxing intList.Add(“3") ‘ Compile-time error Dim i As Integer = intList(0) ’ No cast required VB
- 16. Generics in C++ generic<typename T > public ref class List { array <T> ^ elements; int count; public: void Add( T element) { if (count == elements->Length) Resize(count * 2); elements[count++] = element; } property T default [int index] { T get() { return elements[index]; } void set( T value) { elements[index] = value; } } property int Count { int get() { return count; } } }; List<int> ^ intList = gcnew List<int> (); intList->Add(1); // No boxing intList->Add(2); // No boxing intList->Add(“3"); // Compile-time error int i = intList[0]; // No cast required C++
- 17. Enhancing the Base Library Generic Collections System.Collections.Generic classes List<T> Dictionary<K, V> Stack<T> Queue<T> System.Collections.Generic interfaces IList<T> IDictionary<K, V> ICollection<T> IEnumerable<T> IEnumerator<T> IComparable<T> IComparer<T>
- 18. Enhancing The Base Library Other Generics to look out for Nullable( Of T ) Extremely useful for situations where null is a value, such as database valuetypes T will be constrained to valueTypes EventHandler <T> Saves on making your own EventHandlers Dim intVal as Nullable( Of Integer ) = 5 If intVal.HasValue Then ‘ checks for a value delegate void EventHandler <T> ( Object sender, T e) where T : EventArgs ;
- 19. VS 2005 Tracing Features Additional Listeners Pre - VS 2005 Formatting of Trace information was predefined, and not controllable No Console listener, ASP had their own tracing mechanism VS 2005 Predefined listeners (Console, ETW) and you can make your own Integrated ASP Tracing into our own Support formatting of output, into defined formats, such as delimitered, or XML MySource;Error;13;Wrong key;;;;;;318361290184;
- 20. VS 2005 Tracing Features Simple Thread Identification Pre - VS 2005 : specific threads were difficult to identify, and filter on VS 2005 : Correlation ID has been added, which allows quick and easy identification of a thread, and simple subsequent filtering Auto-generated Data Pre - VS 2005 : Standard information such as timestamp or callstack would have to be explicitly generated VS 2005 : An Admin can easily generate this data automatically, via config settings < listeners > < add name ="example.log" TraceOutputOptions = "Timestamp, CorrelationId"
- 21. VS 2005 Tracing Features Listener Filtering Pre - VS 2005 : Filtering of Trace information was predefined, and not controllable VS 2005 : Assign filtering to listeners, so only certain messages are traced. This allows filtering on any property of a message. E.g., ID, TimeStamp, etc. Switches Pre - VS 2005 : Couldn’t determine what tracing a component supported VS 2005 : Support the ability to determine what tracing mechanisms a component has
- 22. Summary Extending the Platform SQL Server Integration Moving to 64 bit Improving the Platform Performance work RAD Debugging Security improvements Innovating in the Platform Generics support BCL Enhancements
- 23. Resources BCL Blog http://weblogs.asp.net/bclteam BCL Website http://www.gotdotnet.com/team/clr/bcl/default.aspx BCL public mail alias [email_address] Reference (Brad Abrams) .NET Framework Standard Library Annotated Reference
- 24. Attend a free chat or web cast http://www.microsoft.com/communities/chats/default.mspx http://www.microsoft.com/usa/webcasts/default.asp List of newsgroups http://communities2.microsoft.com/ communities/newsgroups/en-us/default.aspx MS Community Sites http://www.microsoft.com/communities/default.mspx Sofia .NET User Group http://www.sofiadev.org/ Community sites http://www.microsoft.com/communities/related/default.mspx
- 25. Q & A: We want your feedback!
- 26. © 2003 Microsoft Corporation. All rights reserved. This presentation is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, IN THIS SUMMARY.