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  • XPO – 11.1 Sneak Peek - WCF services for IObjectLayer

    In the two previous blog posts, we already described how to provide the IDataStore and ICachedDataStore implementations, working via WCF Services. In this blog post, we will talk about implementing a distributed object layer service ( IObjectLayer/ISerializableObjectLayer ), working via WCF. Creating...
    Posted to XPO (Weblog) by Dennis (DevExpress Support) on 5/17/2011
    Filed under: XPO, 11.1, IDataStore, WCF, distributed applications, service, v2011 vol1, v2011.1, ISerializableObjectLayer, IObjectLayer
  • XPO – 11.1 Sneak Peek – IDataStore WCF Service in Silverlight

    In this blog post we will talk about peculiarities of using IDataStore WCF services in Silverlight projects. As you guess, the main restriction is that all inquiries should be performed asynchronously or rather should not block the UI thread. Let’s extend the solution from the WCF services for IDataStore...
    Posted to XPO (Weblog) by Dennis (DevExpress Support) on 5/16/2011
    Filed under: XPO, 11.1, IDataStore, WCF, v2011 vol1, asynchronous, SL, Silverlight, v2011.1
  • XPO – 11.1 Sneak Peek – Data binding in WPF

    In this blog post, we are going to demonstrate how to use a new XPObservableAssociationList<T> class in the DevExpress.Xpo.Linq library for data binding to persistent classes in WPF . First, we will create a new WPF Application project. Then, we will add references to the DevExpress.Data, DevExpress...
    Posted to XPO (Weblog) by Dennis (DevExpress Support) on 5/16/2011
    Filed under: XPO, LINQ, 11.1, WPF, data binding, XPObservableAssociationList, v2011.1
  • XPO – 11.1 Sneak Peek - Profile it!

    Introduction We have one more amazing piece of news for our XPO customers. In version v2011 vol 1, we have implemented XPO Profiler - an external profiling tool for XPO-based business applications, allowing you to track internal events in the underlying XPO layer, such as session methods calls and database...
    Posted to XPO (Weblog) by Dennis (DevExpress Support) on 5/4/2011
    Filed under: XPO, SQL, 11.1, performance, profiling tool, bottleneck, v2011 vol1, v2011.1
  • XPO – 11.1 Sneak Peek – Data caching improvements

    Introduction First, we would like to refresh your memory and return to the distant past and our old posts about data caching in XPO: ·         XPO is good for distributed applications ·         XPO Beta feature: SQLDependency support...
    Posted to XPO (Weblog) by Dennis (DevExpress Support) on 4/21/2011
    Filed under: XPO, 11.1, IDataStore, WCF, distributed applications, service, data caching, SQLDependency, v2011.1
  • XPO – 11.1 Sneak Peek - WCF services for IDataStore

    In XPO v2011.1 vol 1, we added support for WCF Services. These improvements provide the capability to create service and client for IDataStore as easy as it can only be. In order to support this feature, the DevExpress.Xpo assembly will reference assemblies from .NET 3.0. Unfortunately, Visual Studio...
    Posted to XPO (Weblog) by Dennis (DevExpress Support) on 4/19/2011
    Filed under: XPO, IDataStore, WCF, distributed applications, service, v2011.1
  • XPO – 11.1 Sneak Peek – Support for the OUTER APPLY operator in SQL queries

    We have some good news for our XPO users. In v2011 vol1 we have improved our sql-generator by supporting the OUTER APPLY operator. This SQL operator enables you to create an aggregate’s sub queries outside the WHERE clause and the SELECT expressions. For instance, it provides the capability to...
    Posted to XPO (Weblog) by Dennis (DevExpress Support) on 3/22/2011
    Filed under: XPO, SQL, OUTER APPLY, 11.1, v2011.1
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