I tried to create a Controller class with the name 1BigController, but MVC won't let me do that. It changes the controller name to _BigController.
Why can't I start a controller name with a number?
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Please, tag questions relating to ASP.NET with tag "asp.net", ".net" etc. Thanks.Yasir Arsanukayev– Yasir Arsanukayev2011-02-25 16:43:02 +00:00Commented Feb 25, 2011 at 16:43
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4 Answers
This is a convention of all C# classes, not just MVC. You can find more in the C# Language Specification (item 2.4.2)
Here's a similar question regarding variable names and numeric vals
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It could be because you can't have class names that start with a number. I used to program PLC's and the software we used wouldn't allow us to start any tag names with a number. I don't know why we couldn't other then that was the rule.
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MVC uses a convention approach to type resolution. A controller name such as "Big" will cause MVC to search for a BigController. Likewise, if it was not sanitised as "_" and instead was "1Big", MVC would attempt to find a type called 1BigController. Type names cannot start with numbers, so it gets sanitised for you.
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Variable names have to start with a letter or underscore. The remaining characters can be letters, underscores, or digits. I am not sure why this is the convention, but it has been for a long time.
