Inspired by Real-world examples of co- and contravariance in Scala I thought a better question would be:
I have a generic class that all my DAO classes derive from, which is defined below. I also have a base class for all my entities, but that is not generic.
I was doing some digging aro开发者_开发技巧und into delegate variance after reading the followingquestion in SO : Delegate.CreateDelegate() and generics: Error binding to target method
I have a requirement to implement contact database. This contact database is special in a way that user should be able to dynamically (on runtime) add properties he/she wants to track about the contac
I have an ExpandableListView contains a link, it does not expand when has a link, and i want the link is clickable.
加载中,请稍侯......