2008年10月16日 · The type 'int?' must be a non-nullable value type in order to use it as parameter 'T' in the generic type or method Is specifying a nullable type as a generic parameter at all possible?

2010年4月13日 · 107 Implementing a generic OrderedDictionary isn't terribly difficult, but it's unnecessarily time consuming and frankly this class is a huge oversight on Microsoft's part. There are …

A generic error occurred in GDI+ Asked 14 years, 4 months ago Modified 11 months ago Viewed 63k times

2014年4月30日 · Generic is the opposite of specific. Generic and specific refer to the identification of a fact. Specific means a fact that has been specified. If you ask for (specify) a pain reliever, aspirin …

2012年11月4日 · 43 Have your generic class inherit from a non-generic base, or implement a non-generic interface. Then you can have a collection of this type and cast within whatever code you use …

2016年6月28日 · The root issue mentioned above of casting a non-generic version of the class to a derived generic version was the same. In order to allow injection into a portable class library which did …

Is there a clean method of mocking a class with generic parameters? Say I have to mock a class Foo<T> which I need to pass into a method that expects a Foo<Bar>. I can do the following

2008年10月13日 · This answer cleverly "abuses" the somehow inconsistent rule, that you can, in your base class, create new objects of yet-unknown generic type, inheriting that base class - but you can't …

2010年8月4日 · 0 If you cannot change the generic class and use one of the method already explained on this page, then simple approach would be to get the type class based on the runtime instance …

2017年4月11日 · The first suggestion using is perfect! Now my template with a generic type being returned can return a null for objects and the default value for built-in types.