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PowerBuilder 11: Windows Forms and .NET Interoperability. Jim O’Neil Principal Systems Consultant Sybase, Inc. joneil@sybase.com. PowerBuilder 11 Overview (presented Nov. 20, 2007) Jim O’Neil Systems Consultant. .NET Windows Forms And Interoperability Dec. 4, 2007 Jim O’Neil
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PowerBuilder 11: Windows Forms and .NET Interoperability Jim O’Neil Principal Systems Consultant Sybase, Inc. joneil@sybase.com
PowerBuilder 11 Overview (presented Nov. 20, 2007) Jim O’Neil Systems Consultant .NET Windows Forms And Interoperability Dec. 4, 2007 Jim O’Neil Systems Consultant .NET Assemblies (presented Nov. 13, 2007) Jim O’NeilSystems Consultant Web ServiceDataWindow Feb. 5, 2008 David Avera Staff Software Engineer PowerBuilder 11 .NET Deployment Web Casts .NET Web Forms Dec. 11, 2007 David Fish Engineering Evangelist .NET Web Services Jan. 29, 2008 David Fish Engineering Evangelist .NET Smart Client Jan. 15, 2008 John Strano Technology Evangelist
Agenda • PowerBuilder roadmap • Windows Forms overview • Deploying Windows Forms applications • Distributing Windows Forms applications • .NET interoperability
PowerBuilder Roadmap • Version 11 released in June 2007 • 11.1 Maintenance Release in November 2007 • Delivers on third-phase of PowerBuilder’s .NET initiative
2008 PowerBuilder 11.2 2008 PowerBuilder 11.5 2009 PowerBuilder 12 • AJAX support for Web Forms Applications • EAServer .NET Client Support • Miscellaneous fixes • Core .NET enhancements • Native DataWindow updates • Updated database support • Miscellaneous fixes • .NET in IDE • WPF/WCF support at design and run-time • Fully managed code at deployment • Complete .NET interoperability Language Independence Application Connectivity Multiple Platform Support Power And Performance
System.Windows.Forms System.ComponentModel KERNEL32.DLL USER32.DLL GDI32.DLLGDIPLUS.DLL System.Drawing System.Windows.Forms.VisualStyles KERNEL32.DLL USER32.DLL GDIPLUS.DLL Windows Forms Definition (Microsoft) • What is a Windows Forms application? “Windows Forms is for creating Microsoft Windows applications on the .NET Framework. This framework provides a modern, object-oriented, extensible set of classes that enable you to develop rich Windows-based applications. With Windows Forms, you are able to create a rich client application that can access a wide variety of data sources and provide data-display and data-editing facilities using Windows Forms controls.” Windows Forms Application Win32 Application MSCOREE.DLL (CLR)
Windows Forms Definition (English) • What is a Windows Forms application? Windows Forms applications are an evolution of the Win32-based application development you know and love • and, why should you care • Win32 will go away, eventually • For PowerBuilder users, Windows Forms is a prerequisite for • Smart Client capabilities • .NET interoperability
Developing Windows Forms Applications • Obvious relationship to traditional PowerBuilder applications generally means a smooth transition • Same UI paradigms • Same event model • New Windows Forms wizard quickly creates requisite project and target • New application • Existing application leveragingsame code base
.NET EXE or Assembly deploy CSC save/build PB2CS PowerBuilder System Library For .NET (managed code) Syntax errors Unsupported features PBDs(DataWindow objects,Pipelines, Queries) DataWindow Engine Database Interfaces (unmanaged code) PowerBuilder .NET Deployment PowerScript Source C# translation
source code directory .exe directory (Output path) files supporting incremental rebuild Windows Forms Deployment • Executable files and resources written to “Output path” • Intermediate files written to .pbt_build directory
Unsupported Features • “Native” PowerBuilder constructs unsupported in Windows Forms applications • PBNI extensions (excluding Web Services) • Shared objects • OLE automation server • Tracing and profiling • Dynamic Data Exchange (DDE) • Garbage collection functions • EAServer client support (coming in 11.2 with EAServer 6.1) • Use of .NET visual classes
Partially Supported Features • “Native” PowerBuilder constructs partially supported in Windows Forms applications • Rich Text and OLE DataWindow styles • In-process OLE controls (ActiveX) • Limited event support • Requires wrapper class generated using .NET utility • Non TrueType fonts replaced with TrueType fonts • Font-substitution display impact • Unexpected cursor display (e.g., invisible in EditMask control) • ALL visual controls are supported to varying degrees with exception of • Other event • IMEMode property (Japanese version only!)
w_1 w_2 w_3 w_1::EVENT foo() Language Construct Caveats • Partially supported syntax • GOTO statement – disallowed when target label is out of ‘scope’ • Invoking an indirect ancestor event – results in unexpected behavior IF y = 7THENGOTO a IF x = 10THEN y = 5 a: z = 2 ELSE y = 8 z = 3 ENDIF Win32 .NET
Language Construct Caveats • Questionable practices allowed in “native” PowerBuilder applications but disallowed in .NET deployments • this keyword in global functions • RETURN statement in FINALLY clause • Overloading event signatures • Overriding function access scope • Object casting outside of object hierarchy
Language Construct Caveats (concluded) • External function calls • Generic STRUCTURE argument type unsupported • Requirement to pass structure arguments by reference when argument is a const pointer • Requirement to re-initialize reference string arguments for each invocation
Distributing Windows Forms Applications • Required files • Runtime packager • Smart Client
Required Files • .NET Framework 2.0 • Microsoft Runtime Files • PowerBuilder System Library for .NET • PowerBuilder Runtime Dynamic Link Libraries • Application files
Required Files • .NET Framework 2.0 • Redistributable package (dotnetfx.exe) • SDK not required • .NET Framework 3.0 extended 2.0 with additional features so fulfills the requirement
Required Files • Microsoft Runtime Files • msvcr71.dll • msvcp71.dll • atl71.dll
All Windows Forms applications Sybase.PowerBuilder.Common.dll Sybase.PowerBuilder.Core.dll Sybase.PowerBuilder.Interop.dll Sybase.PowerBuilder.Win.dll Applications using graphs Sybase.PowerBuilder.Graph.Win.dll Sybase.PowerBuilder.Graph.Core.dll Sybase.PowerBuilder.Graph.Interop.dll Applications using DataWindows/DataStores Sybase.PowerBuilder.DataWindow.Win.dll Sybase.PowerBuilder.DataWindow.Interop.dll Required Files • PowerBuilder System Library for .NET • Sybase.PowerBuilder assemblies • Strongly-named so installable to Global Assembly Cache (GAC) …using EditMasks …using RichText …using Web Services
Required Files • PowerBuilder Runtime Dynamic Link Libraries • Unmanaged code DLLs • PBDWM110.DLL: DataWindow engine • PBSHR110.DLL: Utility and memory management routines • PBXERCES110.DLL: XML DataWindow import/export • PBxxx110.DLL: Database drivers • … • Must reside on system path
Required Files • Application files • Application executable assembly (.exe) • Configuration file (.config) • Manifest file (.manifest) • DataWindow libraries (.pbd) • Resource files (images, INI files, etc.) • Referenced external libraries (DLLs, OCXs, etc.)
Runtime Packager • Creates MSI file containing system files relating to selected functionality • Registers self-registering DLLs • Sets PATH variable • Adds destination path to registry • Adds PowerBuilder System assemblies to GAC What’s missing? 1. .NET Framework 2.0 2. Application specific files
Smart Client “Publish” application to a central location Access application from that location Application installs and runs locally Details from John Strano on Jan. 15th!!
.NET Interoperability • Support for invocation of .NET non-visual classes in PowerBuilder .NET applications • Windows Forms • Web Forms • .NET Assemblies • Web Services String netVersion System.Reflection.Assembly assembly assembly = System.Reflection.Assembly.GetCallingAssembly() netVersion = assembly.ImageRuntimeVersion
Conditional Compilation Code Blocks • New construct used to delineate .NET invocations • #IF DEFINED PBDOTNET… • #IF DEFINED PBWEBFORM… • #IF DEFINED PBWINFORM… • #IF DEFINED PBWEBSERVICE… • Code blocks can contain… • “Classic” PowerScript • PowerScript extensions • Code block contents examined only at deployment time • No syntax checking when saving object • Non-applicable code blocks not compiled into target image
PowerScript Enhancements Supporting Interoperability • Parameterized constructor syntax • Static method invocation • Bitwise operators (viz., AND, OR, NOT, XOR) • Non-integral array indexers (e.g., population[“Argentina”] = 40500000) • Capability to reference .NET constructs • Namespaces • Interfaces • Enumerations
Current .NET Interoperability Restrictions • Only non-visual classes are supported • Generic and nullable types not supported • Method calls allowed only on classes • .NET types converted to equivalent PowerBuilder base types, for example, following code will not compile in PowerBuilder System.Int32 x x = 5 MessageBox(“Value”, x.ToString()) • Array basis is 1 in PowerBuilder, 0 in .NET • Limited IDE support
Adding .NET References • Add references to .NET assemblies via Target Properties
.NET Assemblies in System Tree Enumeration Class and methods
.NET Interoperability Code Snippet #if defined PBDOTNET then String netVersion System.Reflection.Assembly assembly assembly = System.Reflection.Assembly.GetCallingAssembly() netVersion = assembly.ImageRuntimeVersion st_netVersion.text = ".NET Version: " + Right(netVersion, Len(netVersion) - 1) #if defined PBWEBFORM then String browserVersion System.Web.HttpRequest request request = System.Web.HttpContext.Current.Request browserVersion = request.Browser.Browser + " " + & String(request.Browser.MajorVersion) + "." + & String(request.Browser.MinorVersion) st_browserVersion.text = "Client Browser: " + browserVersion #end if #end if
Upcoming PowerBuilder Events • ISUG “Leveraging PowerBuilder in the .NET World” • Day-long, hands-on training event • Multiple cities in North America through December • Visit http://www.isug.com/pb11tour for details • Sybase web casts • Web Forms (Dec 11th) • Smart Client (Jan 15th) • Web Services Deployment (Jan 29th) • Web Services DataWindow (Feb 5th) • Visit http://response.sybase.com/forms/pbregistration to sign-up!! Final Week of Tour! Dec. 11 – Orlando Dec. 12 – DC (Dulles) Dec. 13 – Atlanta