What does the assembly keyword mean in the AssemblyInfo.cs. Does it permit to use method inside?

Question

Saw some code snippet inside AssemblyInfo.cs like

[assembly: someattributename]

What does this code mean?

I even saw some method to

Answer 1

To the second (edited) part of your answer:

No, it is not a method call. log4net.Config.XmlConfigurator is also an attribute defined by log4net. (See the documentation for log4net details.) Its exact declaration is

public class XmlConfiguratorAttribute : ConfiguratorAttribute

What is a little bit misleading in this case is the attribute naming convention. That means when you use an attribute (even on assembly level) you can leave the Attribute suffix from the attribute class name.