• .NET

    Breaking the ice: RIA Services and Silverlight 3

    Implementing Line of Business applications has never been easier before. RIA services together with the rich presentation layer in Silverlight provide a powerful foundation for building n-tier application that will do the heavy lifting of your data layer. RIA Services relies on the ADO.NET Entity Framework to create an entity data model of your relational database and interpret the entities independently of their data store representation. In this way you can use the power of LINQ to Entities to implement query logic against the entities without using t-sql, and rely on the entity relationship to retrieve information for any relationship between...
  • .NET

    SQL Server 2008 Error: 'Saving changes is not permitted.'

    November 15, 2008 Share
    Tonight I ran into the following error message when using a freshly installed version of SQL Server 2008 in a new project. Saving changes is not permitted. The changes you have made require the following tables to be dropped and re-created. You have either made changes to a table that can't be re-created or enabled the option Prevent saving changes that require the table to be re-created. The error appeared after I created a new table, set up it's primary key column, clicked save, and then tried to modify and re-save the table again. The reason this error dialogue is being...