CODEWITHSUNDEEP
c#types
greenoldman
greenoldman

Reputation: 21062

Where are the type names defined?

When you get Type of the variable you can check its name:

if (my_type.Name=="Int32")

however it would more elegant to write

if (my_type.Name==TypeNames.Int32)

to avoid typos. I can define such class on my own, but maybe there is already definition somewhere?

If yes, where?

Note: please avoid wondering "why would you like to get type of the variable in the first place", "it is better to use 'is'" and alike. Thank you very much!

Edit: meanwhile, I jumped into the conclusion it would be enough to ignore the type of the object (my_type variable) and check the object instead. In other words the my_type is not necessary. I forgot about null case :-( Less code, more sleep, that's what I need ;-)

Upvotes: 3

Views: 138

Answers (2)

Dirk Vollmar
Dirk Vollmar

Reputation: 176169

The type names are not defined anywhere in a class. They are generated at runtime by the CLR (by a call to the external ConstructName function) using reflection.

Using the suggestion of JaredPar will do the job.

Upvotes: 2

JaredPar
JaredPar

Reputation: 754715

Try the following

typeof(Int32).Name

If you want to compare types though doing so by name is not the best solution as it will be wrong in many cases. It's more correct to compare the types directly.

if ( m_type == typeof(Int32) ) { 
  ...
}

Upvotes: 16

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