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Is it possible to inject Loggin behaviour to the marked classes or/and methods like this:
Log("Method {0} started",GetMethodNameTroughReflection)
Call method body
Log("Method {0} Finished",GetMethodNameTroughReflection)
I want to create my own Attribute class, which will realize loging behaviour for method call.
I want to describe login behaviour in the app.config file, thoug it can be disabled by a setting in config.
How to do it right? Maybe there is created solution for tasks like this one?
813
Attributes provide a powerful method of associating metadata, or declarative information, with code (assemblies, types, methods, properties, and so forth). After an attribute is associated with a program entity, the attribute can be queried at run time by using a technique called reflection.
In C#, attributes are classes that inherit from the Attribute base class. Any class that inherits from Attribute can be used as a sort of "tag" on other pieces of code. For instance, there is an attribute called ObsoleteAttribute . This is used to signal that code is obsolete and shouldn't be used anymore.
Attributes are used for adding metadata, such as compiler instruction and other information such as comments, description, methods and classes to a program. The . Net Framework provides two types of attributes: the pre-defined attributes and custom built attributes.
This can be done using aspect-oriented programming (AOP). Have a look at PostSharp. See the sample for tracing here:
Non-Invasive Tracing & Logging
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