What's the max length of a c# class file name,Is it has limited length?

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OriginalGriff · Answer 1 · 2012-12-03T01:34:00

Solution 1

Technically, there isn't one - the CLI does not impose any limit, neither does the C# specification.
However, in practice, the C# compiler does impose a limit of 511 characters per name.
If you declare something with 511 characters you are fine, 512 and you will get an "Identifier to long" error.

Posted 3-Dec-12 1:34am

OriginalGriff

Comments

PEIYANGXINQU 3-Dec-12 7:45am

Some one say that the limit is 256, because of 8 bit and 2^8=256

OriginalGriff 3-Dec-12 8:25am

They are wrong - try it!
class
abcdefghijabcdefghijabcdefghijabcdefghij...
{}
and compile - 511 will work, 512 will not.

PEIYANGXINQU 3-Dec-12 7:49am

Can you tell me why is 512? Thank you!

OriginalGriff 3-Dec-12 8:27am

There probably is no reason - other than "I need to know how big the largest one is so I can assign enough buffer space" when they wrote the compiler.
To be honest, you will have run out of readable code a very, very, very long time before you run out of characters in identifiers! :laugh:

RaisKazi 3-Dec-12 15:05pm

Interesting discusion. 5ed!