User defined compiler warning or error in C#

Question

Is it possible to have some code let the compiler generate a compile warning or error?

Maybe with Attributes?

** Having the first answer and a few comments I realize my question is not as a clear as I expected and wanted it to be. I apologize. Hopefully all contributers are still with us.
**

So I am more looking towards an internal DSL.

S.Th. like

[MustAssign]
public string Val {get; set;]

@SriramSakthivel possibly, though it would help if you linked to a concrete example while marking as duplicate. There is this one - http://stackoverflow.com/questions/154109/custom-compiler-warnings?lq=1 - which looks the same superficially but it seems to be a different question. — CompuChip, Jul 17 '14 at 12:23
@CompuChip How that's is a different question? I fail to see that. — Sriram Sakthivel, Jul 17 '14 at 12:24

CompuChip · Answer 1 · 2014-07-17T12:21:41.970

7

Do you mean #warning ?

#warning lets you generate a level one warning from a specific location in your code. For example:

#warning Deprecated code in this method.

And for errors, there is (you would never guess), #error.

edited Jul 17 '14 at 12:21

answered Jul 17 '14 at 12:20

CompuChip

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This is great and I did not know about that (+1). However - I edited my question - I would like to have some logic behind it - code that runs during compilation - and then creates Compiler Error – Martin Meeser Jul 17 '14 at 12:40
@MartinMeeser Did u find any solution?? – nucleons Nov 28 '14 at 10:28

User defined compiler warning or error in C#

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