Themes - Let you create a different appearance and behavior for LightSwitch applications and controls. Shells - Let you create an application shell with a different layout and different capabilities than the standard LightSwitch application shell. Screen templates - Can be used to create screens that have common layout patterns different from the standard screen layouts provided by LightSwitch. Data sources - Domain service adapter class that enables LightSwitch to work with other data sources. Custom controls - Silverlight user controls with additional attributes to make them usable in and better integrated with LightSwitch. They can include a Silverlight control for displaying data. Light Switch Extensibility Toolkit Light Switch extension types Business types - Let you wrap a base data type in a semantic type, providing additional validation and display capabilities in LightSwitch while continuing to store the data in its underlying type.
WORKSPACE MANAGER DEVEXPRESS UPDATE
Initiate Update PipeLine for each source Validate SaveChanges CalledĬall CanRead, CanInsert, CanUpdate, CanDelete For each entity in change set Validate modified entities in change setĬall inserting, deleting, updating for modified entities in change setĮxecute Insert, Update, Delete for Entities in Change setĬall inserted, deleted, updated for All entities in change set Commit TransactionĪbort Transaction SaveChanges _ExcutionFailed
SaveChanges_CanExecute uteies SaveChanges_Executing Start Transaction Load cascade delete entities Other Entity Framework providers (some condition apply).Can use ADO.NET, WCF Data Services, or your own Shim use to talk with a WCF RIA domain Service that access MS SQL 2005, 2008, Azure.For application light switch defines Entity-Types as an Application Data object.When a query is executed, The pipeline performs these steps:
WORKSPACE MANAGER DEVEXPRESS CODE
Two type of code in the pipeline are common entity code and interception methods. The server business logic consists of the query pipeline and the save pipeline. The business logic is accessed via a Data Workspace, the service side Data Workspace uses the data provider to access data sources. The service interface is exposed as a WCF service end point. NET 4 application that can run locally, in IIS or on Azure.Įach Data Service has a service interface, server business logic and data access provider. You can use LINQ queries to fetch data into the client or to initiate SaveChanges().Įach data source is modeled as an Application Data Service and implemented in the service tier. Results of business rule are accessed via the Details property.Įach Client (screen) has a Data Workspace to access queries and entities. Light switch uses lazy evaluation to update the rule at point of use. Screen object and entity object are available at run time.Įach screen object represents high-level unit of work the user will use.Įach entity object represents a piece of business data, with encapsulated business rules like data validation.Įntities are reused on the presentation and service tiers.īusiness rules show up as Computed properties, Validation rules (build in), authorization rules and read/write rules. Screen contain Entity Type building blocks that encapsulate client business logic. Screens lays out content items automatically and content items and layouts can be changed dynamically (: time saver :) Screen consist of Visual tree that contain content Items. User interface consist of Shell, Screen, Theme, Controls Presentation tier is Silverlight 4 (in or out of browser).You can run and debug the application and then publish to IIS or Azure.After you create a screen, you can modify its appearance in the designer. You bind data to a screen to link the entities or queries to be displayed. Screens (or forms) are based on predefined templates.
You can create relationships between entities. Data entities can be the built-in application database, or imported data from an external database, a SharePoint list, WCF RIA Services ,or other data source.LightSwitch lets you focus on the business logic of the application by providing visual manipulation of data entities (tables and relationships) and screens to shorten the application development cycle.LightSwitch application use model-centric n-tier architecture patterns based on Model-View-ViewModel (MVVM), Entity Framework and WCF RIA Services as building blocks.LightSwitch is a new Visual Studio Development tool from Microsoft, used to accelerate the building of Silverlight data centric business applications for desktop, web, and Azure cloud.NETBC Group Sept 8, 2011, 90 minutes, 200 level
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