Rockford Lhotka

CSLA .NET for Silverlight downloads

Tue, 30 Jun 2009 15:31:31 GMT

CSLA .NET for Silverlight
video training!

Please consider making a donation to help support the ongoing development of CSLA .NET.

Why donate?

Bolded items are recommended for download

CSLA Version	Silverlight Version
3.7.0 (alpha)	3.0	Framework	Tests	Samples	Change log
3.6.3	2.0	Framework	Tests	Samples	Change log
3.6.2	2.0	Framework	Tests	Samples	Change log
3.6.1	2.0	Framework	Tests	Samples	Change log
3.6.0	2.0	Framework	Tests	Samples	Change log

Before going far, I recommend reading some key Silverlight blog posts.

There are several usage scenarios to consider with CSLA .NET for Silverlight:

Build client app using CSLA .NET for Silverlight and communicate with arbitrary server-side services
- Download the framework
- Make sure you have the latest System.Windows.Data.dll from
  http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=084a1bb2-0078-4009-94ee-e659c6409db0
- Open the solution and build
- Reference Csla.dll (from the cslalight\ClientBin folder) in your Silverlight application
Build client/server app using CSLA .NET for Silverlight on the client and CSLA .NET for Windows on the server
- Download the framework
- Open the solution and build
- Reference Csla.dll (from the cslalight\ClientBin folder) in your Silverlight application
- Reference Csla.dll (from the cslacs\bin folder) in your .NET application
- Use the data portal to communicate between client and server
Build the CSLA .NET for Silverlight test application(s)
- Download the framework
- Download the tests
- Unzip both archives at a peer level
- Open the solution in the UnitTest folder and build
Build the CSLA .NET for Silverlight sample applications
- Download the framework
- Open the solution and build
- Download the samples
- For each individual sample solution
  - Fix references to Csla.dll in all projects to point to your Csla.dll files (Silverlight and .NET)
  - Build solution

Some notes:

Building CSLA .NET for Silverlight requires the CSLA .NET code base. This is because numerous code files from CSLA .NET are linked into the CSLA .NET for Silverlight project. The CSLA .NET for Silverlight download includes CSLA .NET so you can build CSLA .NET for Silverlight. Put the cslacs and cslalightcs folders at a peer level:

\cslacs
\cslalightcs

For client-only development you can use just CSLA .NET for Silverlight 3.6 to build your application. In this case, you'll need to run the data portal in local mode, and your client-side DataPortal_XYZ methods or object factory methods will need to make calls to your services from the client.

For client/server scenarios using the data portal to communicate from Silverlight client to .NET server, you will also need to use CSLA .NET 3.6 to configure a web/application server. In this case, you'll configure the Silverlight data portal to communicate with this .NET web server, and your business objects will move between client and server automatically.

All code requires Visual Studio 2008, .NET 3.5 SP1, Silverlight 2.0 and the Silverlight 2.0 pre-release tools for Visual Studio 2008.

The cslatest and cslalighttest projects need either nunit or MSTest. Also, the cslalighttest project requires files from cslatest, and so the download includes the CSLA .NET test project along with the CSLA .NET for Silverlight test project. The test projects also need UnitDriven (required assemblies are in the download). All folders should be placed at a peer level:

\cslacs
\cslalightcs
\cslalighttest
\cslatest
\Dependencies

Version 3.7.0 change log

Tue, 30 Jun 2009 15:21:52 GMT

Here you can download the code I was demonstrating in my MSDN webcast on storing user configuration data.

CSLA .NET for Windows downloads

Tue, 30 Jun 2009 05:00:00 GMT

CSLA .NET
video training!

Please consider making a donation to help support the ongoing development of CSLA .NET.

Why donate?

Current versions:

CSLA Version	.NET Version
3.7.0 (alpha)	3.5 SP1	Framework		Test	Samples	Change log
3.6.3	3.5 SP1	Framework		Test	Samples	Change log	Help file
3.5.3	3.5	VB	C#	Test		Change log
3.0.5	2.0/3.0	VB	C#	Test		Change log
1.53	1.x	VB	C#			Info

Older versions:

CSLA Version	.NET Version
3.6.3	3.5 SP1	Framework		Test	Samples	Change log
3.6.2	3.5 SP1	Framework		Test	Samples	Change log
3.6.1	3.5 SP1	Framework		Test	Samples	Change log
3.6.0	3.5 SP1	Framework		Test	Samples	Change log
3.5.3	3.5	VB	C#	Test		Change log
3.5.2	3.5	VB	C#	Test		Change log
3.5.1	3.5	VB	C#	Test		Change log
3.5.0	3.5	VB	C#	Test		Change log	Help file
3.0.5	2.0/3.0	VB	C#	Test		Change log
3.0.4	2.0/3.0	VB	C#	Test		Change log
3.0.3	2.0/3.0	VB	C#	Test		Change log
3.0.2	2.0/3.0	VB	C#	Test		Change log
3.0.1	2.0/3.0	VB	C#	Test		Change log
3.0.0	2.0/3.0	VB	C#	Test		Change log
2.1.4	2.0	VB	C#	Test		Change log
2.1.3	2.0	VB	C#	Test		Change log
2.1.2	2.0	VB	C#	Test		Change log
2.1.1	2.0	VB	C#	Test		Change log
2.1	2.0	VB	C#	Test		Change log
2.0.3	2.0	VB	C#	Test		Change log
2.0.2	2.0	VB	C#	Test		Change log
2.0.1	2.0	VB	C#	Test		Change log
2.0	2.0	VB	C#	Test		Change log
1.53	1.x	VB	C#			Info

Other information and related downloads:

Version 3.7.0 change log

Tue, 30 Jun 2009 05:00:00 GMT

This document is the change log for version 3.7.0 of CSLA .NET for Silverlight.

For a more complete list of changes, go to http://www.lhotka.net/cslabugs, select “all issues” and filter the status to “closed” and/or “checked in”.

Click here for a list of known issues with this version.

Pre-Release 3.7.0-090630:

Silverlight 3 (090627)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=434

CSLA .NET for Silverlight and the unit test project now build using the Silverlight 3 tools for Visual Studio 2008.

Async events (090626)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=433

Fix several places where events weren’t being properly removed.

Anonymous read-only repository access

Fri, 26 Jun 2009 05:00:00 GMT

I have enabled anonymous read-only access to the CSLA Subversion repository. This should allow anyone with a svn client (such as TortoiseSVN) to directly download the source out of the repository.

Be aware that this is a live repository,
so there is no guarantee that the code in csla/trunk/

is tested or works in any way!!!

Version	Subversion URI	Web view
.NET dev (current)	svn://svn.lhotka.net/csla/trunk	web view
Silverlight dev (current)	svn://svn.lhotka.net/csla/trunk	web view
Version 3.6.x maintenance	svn://svn.lhotka.net/csla/branches/V3-6-x	web view
.NET release 3.0, 3.5, 3.6	svn://svn.lhotka.net/csla/tags/V3	web view
.NET release 2.0 and 2.1	svn://svn.lhotka.net/csla/tags/V2	web view
.NET release 1.x	svn://svn.lhotka.net/csla/tags/V1	web view
CE beta 3.0	svn://svn.lhotka.net/csla/ce/trunk	web view

CSLA .NET for Silverlight video series

Fri, 19 Jun 2009 05:00:00 GMT

Do you want to learn how to build business applications using Silverlight 2.0? The CSLA .NET for Silverlight framework was the first, and is one of the most powerful, development frameworks for Silverlight, and it will make your job so much easier than using plain Silverlight that you'll be amazed!

Of course you'll want to learn how to use CSLA .NET for Silverlight, and this is where the the CSLA .NET for Silverlight video series is invaluable. This series includes more than 8 hours of high quality content providing invaluable technical training on CSLA .NET for Silverlight, starting with a basic introduction to building a Silverlight application, a CSLA .NET for Silverlight application, and then moving on to SOA and n-tier application development and more!

You can get an idea of the video style with these promos:

VS Live 2009

Wed, 17 Jun 2009 10:35:54 GMT

This is the code (Windows and Web) used in my MSDN webcast on custom security.

Norwegian Developers Conference 2009

Wed, 17 Jun 2009 05:00:00 GMT

Here are files from my NDC presentations.

Permissions demo (requires CSLA .NET for Windows)
Threading demo
CSLA .NET for Silverlight (framework and samples)

Version 3.6.3 change log

Wed, 10 Jun 2009 18:20:39 GMT

This document is the change log for version 3.6.3 of CSLA .NET for Silverlight.

For a more complete list of changes, go to http://www.lhotka.net/cslabugs, select “all issues” and filter the status to “closed” and/or “checked in”.

Click here for a list of known issues with this version.

Release 3.6.3-090610:

Security\UsernameCriteria (090604)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=417

Add default constructors so this type can serialize to/from Silverlight.

Security\MembershipIdentity (090603)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=416

Fix issue so this type can be used directly from a Silverlight app (without the need to create a subclass).

Security\WindowsIdentity (090602)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=414

Make Roles property protected so a subclass can overwrite the list of roles. This enables a common scenario where the user is authenticated as a Windows user, but their roles are loaded from another location (such as a SQL table).

Pre-Release 3.6.3-090526:

ObjectFactory (090522)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=405

Add ReadProperty() method to ObjectFactory base class so a totally non-public property in a business object can be accessed for data access.

LoadProperty() (090521)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=400

The non-generic LoadProperty() method now resets a child’s edit level values as appropriate. This makes the non-generic method match the behavior of the generic LoadProperty() overloads.

Lazy loaded child objects (090521)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=404

Throw an exception when attempting to read an uninitialized lazy loaded child object.

This may be a breaking change in some cases.

Pre-Release 3.6.3-090518:

Validation (090505)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=398

Add overload so AddRule() can specify a priority when adding an async validation rule.

MobileFormatter (090424)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=388

Enhance MobileFormatter so it can serialize enum values.

MobileFormatter (090424)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=391

Fix issue with serialization of null child object values.

MobileFormatter (090424)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=390

Fix issue with serialization of different objects that return the same hash code and report being equal with Equals(), but not with ReferenceEquals().

CoerceValue (090420)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=378

Enhance CoerceValue() so it works with interfaces and inheritance.

BeginSave method (090420)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=380

Fix use of incorrect resource string for ValidationException message text.

DataPortalClient\FactoryProxy (090407)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=382

The ObjectFactory model was automatically calling MarkOld() and MarkNew() on root objects created by a local factory object. This was bad, because it doesn’t match the .NET behavior, and because it is inconsistent between root and child objects – which just leads to ugly confusion. So the FactoryProxy no longer calls these methods automatically, and the factory object itself must explicitly make the calls, just like on .NET. This is a breaking change.

Silverlight\CslaDataProvider (090407)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=381

Fixed a bug where the data provider control was raising the DataChanged event twice, causing double-processing by the UI.

Version 3.6.3 change log

Wed, 10 Jun 2009 18:19:16 GMT

This document is the change log for version 3.6.3 of CSLA .NET for Windows.

For a more complete list of changes, go to http://www.lhotka.net/cslabugs, select “all issues” and filter the status to “closed” and/or “checked in”.

Click here for a list of known issues with this version.

Release 3.6.3-090610:

Core\UndoableBase (090602)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=385

Use full path for fields to fix issue with inheritance.

Pre-Release 3.6.3-090528:

ObjectContextManager (090527)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=409

Fix a bug with ObjectContextManager where Entity Framework was closing and reopening the database connection, thus triggering the use of the DTC during update operations. The ObjectContextManager now ensures that EF keeps the connection open for the life of the ObjectContextManager object, which avoids unnecessary use of the DTC.

LINQ to CSLA (090527)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=389

Fix KeyNotFoundException in PositionMap<T>.

LINQ to CSLA (090527)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=411

Fix a filtering bug in LinqBindingList.

Pre-Release 3.6.3-090526:

ObjectFactory (090522)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=405

Add ReadProperty() method to ObjectFactory base class so a totally non-public property in a business object can be accessed for data access.

CslaActionExtender (090521)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=401

Fix bug where CslaActionExtender didn’t enable/disable buttons properly in all cases.

LoadProperty() (090521)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=400

The non-generic LoadProperty() method now resets a child’s edit level values as appropriate. This makes the non-generic method match the behavior of the generic LoadProperty() overloads.

Lazy loaded child objects (090521)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=404

Throw an exception when attempting to read an uninitialized lazy loaded child object.

This may be a breaking change in some cases.

Csla.Data Manager classes (090520)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=377

Add an overload to the GetManager() methods to allow for named connections. This change means it is now possible to use, for example, the ConnectionManager to maintain multiple open connections simultaneously.

Remember that more than one open connection, when using TransactionScope, will result in the DTC being used to manage the transaction.

Pre-Release 3.6.3-090518:

DataPortalResult (090518)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=402

Change constructor to public to match Silverlight.

LINQ to CSLA (090505)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=367

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=345

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=367

Various issues resolved to make LINQ to CSLA work better with Dynamic LINQ – including handling of OrderBy with certain types of nested ThenBy clauses.

Validation (090505)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=398

Add overload so AddRule() can specify a priority when adding an async validation rule.

CoerceValue (090430)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=378

Enhance CoerceValue() so it works with interfaces and inheritance.

BeginSave method (090430)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=380

Fix use of incorrect resource string for ValidationException message text.

Core\UndoableBase (090409)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=385

Use full path for fields to fix issue with inheritance.

Wpf\CslaDataProvider (090407)

http://www.lhotka.net/cslabugs/edit_bug.aspx?id=383

Work around an issue where the data provider is invoked twice by WPF when IsInitialLoadEnabled is true, and when an exception occurs during load. For some reason, WPF double-invokes the data provider in this case, and so CslaDataProvider now catches this particular case and ignores the duplicate invocation.

CSLA .NET Roadmap

Thu, 21 May 2009 15:04:04 GMT

From time to time people ask about the future of CSLA .NET. The following is my current best estimate in terms of plans:

	Release (est)	Description
CSLA .NET for Silverlight video series	Pre-release available	A series of training videos and associated code samples covering the use of CSLA .NET for Silverlight to create Silverlight applications.
CSLA .NET and ASP.NET MVC	Q3 2009	An ebook covering the use of CSLA .NET for Windows when creating an ASP.NET MVC UI.
CSLA .NET 3.7	Q4 2009	Add support for Silverlight 3.0.
CSLA .NET 4.0	2010	Add support for Microsoft .NET 4.0 and Visual Studio 2010.

Please note that nothing here is a guarantee or promise of future releases. The content and version numbers may change based on many factors. What you see here reflects my current thinking only.

What is CSLA .NET?

Wed, 20 May 2009 05:00:00 GMT

CSLA .NET is a software development framework that helps you build a powerful, maintainable business logic layer for Windows, Web, service-oriented and workflow applications.

There are many frameworks in the world. Most of them focus on the common issues of getting data into and out of the database or creating a flexible UI. What is typically missing is a focus on managing or implementing business logic. This puzzles me, because business logic is the centerpiece of a business application.

Helping to manage and implement this business logic is the purpose of my CSLA .NET framework and is the focus of my Expert Business Objects books.

CSLA .NET enables you to create an object-oriented business layer that abstracts and encapsulates your business logic and data. The framework ensures your business objects fully support data binding in WPF, Silverlight, ASP.NET Web Forms and Windows Forms. It also supports ASP.NET MVC, Windows Workflow Foundation, WCF and web services interfaces.

CSLA .NET simplifies and standarizes implementation of business logic, validation and authorization logic within your objects. The goal is to provide an easy and consistent coding pattern by which you can encapsulate all your business logic within your object-oriented business layer. The result is a business layer that can support all the interface types listed above, while remaining decoupled from any specific interface technology.

CSLA .NET includes a technology-neutral client/server abstraction, allowing you to build your application and then decide at deployment whether to use 2-tier or 3-tier client/server (and 4-tier with Silverlight). If you opt for 3-tier deployment, you can choose between WCF, .NET Remoting, Web Services or Enterprise Services as a network protocol. The key point here is that you can switch between 2-tier and any of these 3-tier networking options without changing your UI, business logic or data access code; all that changes is a configuration file (and of course deployment to both client and server).

Finally, CSLA .NET provides a clearly defined location in your architecture where you get data from or put data into the database. This is not the focus of CSLA .NET, and so the framework’s goal is to put you in charge. To give you optimum flexibility in how that data is managed and to enable decoupling of the data access from the business object and user interface or presentation layers.

CSLA stands for Component-based, Scalable Logical Architecture, and is the result of over 12 years worth of research and development. The .NET implementation of CSLA was started in 1999, and development continues today, with the addition of CSLA .NET for Silverlight and upcoming support for Silverlight 3.0 and Microsoft .NET 4.0.

Tech Ed 2009

Thu, 14 May 2009 05:00:00 GMT

Download the code from my talk on sharing code between .NET and Silverlight

Simple demos
CSLA .NET for Silverlight (including InventoryDemo sample)

Also, here is the link for the Project Linker Feb 2009 download:

http://www.microsoft.com/downloads/details.aspx?familyid=fa07e1ce-ca3f-4b9b-a21b-e3fa10d013dd&displaylang=en