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I've created a few attributes for properties. now I want to limit these attributes to properties with a certain data type? the idea is, a compiler error will be thrown if it is assign to a different type. is this possible?
if not, then I guess i'll have to check it on runtime.
You could write a custom FxCop/ Code Analysis rule to check for this.
FxCop is integrated in VS 2010 under the name "Code Analyis", you can change the ruleset in the project properties.
No, this is not possible.
A good workaround is to build a unit test which will traverse all classes, their properties and check for this additional applicability criteria. It's not that comfortable as a compile-time error message, but will serve the purpose. In case you have some kind of build automation infrastructure, the quality assurance level will be the same in practice.
来源：https://stackoverflow.com/questions/8574275/c-sharp-attribute-usage-only-allow-attributes-on-a-property-with-specific-data