During Scott Guthrie’s keynote at PDC09 (starting around 1:28:00), Scott Hanselman presented a demo that highlighted Visual Studio 2010, Silverlight 4, RIA Services, and lots of great new tooling that ties all of these products together.  I wanted to show you how you can build the same application using installations that... [Read More]

During the PDC release milestone of RIA Services, we discovered an error from DomainDataSource when using AutoLoad="True" and when using a DataPager bound to the DomainDataSource’s Data property.  We found that when the PageSize property is specified on the DataPager and not on the the DomainDataSource itself, an exception would... [Read More]

DomainDataSource has two properties for getting the data out of it: Data and DataView.  The Data property is what’s intended for exposure in Binding scenarios, for instance binding a DataGrid to the DomainDataSource.  This property is typed very simply as an IEnumerable.  The DataView property however is intended to be... [Read More]

When changes are successfully submitted and you have paging enabled, it’s quite possible that some of the entities that have been edited now belong to a different page.  Say for instance you are viewing employees ordered by last name, and you edit one of the employees to change their last... [Read More]

While the DomainDataSource is most often used for loading entire sets of records, it can also be used for loading a single record result.  This is a topic I’ve seen a few people talk about, assuming it’s a difficult thing to do, and even creating solutions for a problem that... [Read More]