How to: Turn pluralization on and off (O/R Designer)
By default, when you drag database objects that have names ending in s or ies from Server Explorer/Database Explorer onto the LINQ to SQL Tools in Visual Studio, the names of the generated entity classes are changed from plural to singular. This is done to more accurately represent the fact that the instantiated entity class maps to a single record of data. For example, adding a Customers table to the O/R Designer results in an entity class named Customer because the class will hold data for only a single customer.
Pluralization is on by default only in the English-language version of Visual Studio.
Your computer might show different names or locations for some of the Visual Studio user interface elements in the following instructions. The Visual Studio edition that you have and the settings that you use determine these elements. For more information, see Personalizing the IDE.
On the Tools menu, click Options.
In the Options dialog box, expand Database Tools.
Select Show all settings if the Database Tools node is not visible.
Click O/R Designer.
Set Pluralization of names to Enabled = False to set the O/R Designer so that it does not change class names.
Set Pluralization of names to Enabled = True to apply pluralization rules to the class names of objects added to the O/R Designer.