![]() ![]() Eini is perhaps best known for his contributions to. NET bloggers is Oren Eini, a prolific blogger and respected software developer who posts under the pseudonym Ayende Rahien. Price: $50 to $120 per user license /dbmltools Blogs of Note The Professional version costs $120 per user license and imposes no limits. The Standard version costs $50 per user license and supports up to 80 tables per model. The Huagati DBML/EDMX Tools includes a free 45-day trial version, along with Standard and Professional versions. The Huagati DBML/EDMX Tools can also generate the SQL statements needed to modify the relational model so that it mirrors the object model.Īnother handy feature is the documentation tool, which retrieves the table and column descriptions from the database and includes them in the XML documentation of the object model. This shortcoming is a non-issue with the Huagati DBML/EDMX Tools, which can report the differences between the relational model and the object model and automatically sync the object model with the relational model. If three new columns are added to the same table a few weeks later, you must return to the LINQ to SQL designer and either remove and then re-add the table onto the designer, or manually add three new properties to the corresponding class. For example, when you first drag a database table onto the designer, an object is created with properties that correspond to the table’s columns. One shortcoming of the Visual Studio LINQ to SQL designer is that there is no mechanism to update the object model to reflect the latest database changes. You can add or remove prefixes or suffixes, force proper casing, remove underscores and more. With Huagati DBML/EDMX Tools, you’re just a couple of clicks away from renaming all of the classes and members in the object model. When adding a database object to the designer, Visual Studio creates the corresponding class using the same prefixes and casing, which may run counter to your team’s naming conventions. Database object names often include prefixes like “tbl” or “usp_”, or may be entirely capitalized or lowercase. Observing prescribed naming conventions in the object model is a common challenge with drag and drop OR/M tools. If you use LINQ to SQL or Entity Framework in your applications and are in charge of maintaining the mapping files, check out Huagati DBML/EDMX Tools (version 1.76), which adds a number of features to the Visual Studio LINQ to SQL and Entity Framework designers. Under the covers, this mapping is defined via XML, but the Visual Studio designer makes creating such mappings as easy as drag and drop. ![]() edmx file that contains a mapping between the relational model and the object model. LINQ to SQL and the ADO.NET Entity Framework are two object-relational mapping (OR/M) implementations from Microsoft. Volume 24 Number 12 Toolbox - Database and OR/M Tools, Oren Eini and Custom Visual Studio Tabsīy Scott Mitchell | December 2009 Enhancing the LINQ to SQL and ADO.NET Entity Framework Designers ![]()
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