问题
I use contructor injection in my solution, but this one class has a property that i do not want to pass in the constructor where i have the invariant dependencies.
Let's say i got an ILogger and it has a FileName property i want to set, while still having it set the dependancies in the contructor. How do i go about registering the type, and at the same time pass the defaunt connection string.
I hope there is an easy way to do it - preferably without decorating the property with an attribute, but if the setup is easier with the attribute i guess that's cool :)
So the question is, how do i inject a property value on an object that also uses contructor injection - with Unity.
UPDATE: I mentioned it in the title, but i forgot to elaborate in the body of the text - i want to set these dependencies up manually (in code) as opposed to in a config file.
回答1:
Ok i guess it helped to ask the question, i found out - here it is.
container.Configure<InjectedMembers>().ConfigureInjectionFor<BasicLogger>(
new InjectionProperty("FileName", @"C:\test.log")
);
回答2:
If you are injecting properties you have to use [Dependency] or else manually inject that dependency.
回答3:
You usually want an IConfiguration interface to be injected. This would probably have a LogFile property that you can read.
The Configuration implimentation is usually just a simple wrapper to read items from the config file.
来源：https://stackoverflow.com/questions/1091837/programatic-property-injection-with-microsoft-unity