nested-class

Mapping to a nested class

由 早过忘川 提交于 2019-12-07 14:42:25
问题 I am getting the following error when my application runs: System.InvalidOperationException: The type 'ContactModels+Contact' was not mapped. Check that the type has not been explicitly excluded by using the Ignore method or NotMappedAttribute data annotation. Verify that the type was defined as a class, is not primitive, nested or generic, and does not inherit from EntityObject. It is failing when my DBContext class tries to initialize the entities: public class DB : DbContext { public DbSet

What is the reason for making a nested class static in HashMap or LinkedList? [duplicate]

由 我的梦境 提交于 2019-12-07 14:18:28
问题 This question already has answers here : Static nested class in Java, why? (13 answers) Closed 4 years ago . In most of the cases I've seen that nested classes are static . Lets take an example of Entry class in HashMap static class Entry<K,V> implements Map.Entry<K,V> { final K key; V value; Entry<K,V> next; final int hash; ..... ..... } Or Entry class of LinkedList private static class Entry<E> { E element; Entry<E> next; Entry<E> previous; ..... ..... } What I know so far about nested

Nested class definition outside outer class's, while outer class contains instance of inner class

由 天涯浪子 提交于 2019-12-07 09:29:54
问题 C++ How can I put the definition of an inner (nested) class outside its outer (enclosing) class's definition, where the outer class has at least one instance of the inner class as a data member? I searched but the most relevant SO answer I found, Nested Class Definition in source file, does not have an example where the outer class has an inner object as a data member. I followed that answer, as far as declaring but not defining the inner class inside the outer class's definition is concerned

How to get a value inside parent class from child class (in nested classes)?

由 荒凉一梦 提交于 2019-12-07 06:47:37
问题 I have Class1 and class2 which is inside class1, VB.NET code: Public Class class1 Public varisbleX As Integer = 1 Public Class class2 Public Sub New() 'Here GET the value of VariableX End Sub End Class Public Sub New() Dim cls2 As New class2 End Sub End Class I want to access varisbleX from class2, code in VB.net or C# is appreciated, Thanks. 回答1: The inner class (class2) is not associated with any specific instance of the outer class (class1). T access fields etc, you will need to first have

linq nested list contains

由 柔情痞子 提交于 2019-12-07 03:49:29
问题 I have a question for you linq experts out there! In a nested list of Component instances, I need to know if there is a component of a particular type in it. Can it be expressed by linq? Take into account that there may be application.Components[0].Components[0].Components[0]... My question is oriented to recursive queries in linq! I leave you the entities for you to have some idea of the model. public class Application { public List<Component> Components { get; set; } } public class

Lambda with nested classes

由 杀马特。学长 韩版系。学妹 提交于 2019-12-07 03:01:09
问题 I have posted this question a while ago but got a partial answer to my issue, so I thought I post more explanation hoping to get a more accurate answer. I have 2 classes: public class Employee { public string Name { get; set; } public List<Cars> Cars { get; set; } } public class Car { public int CarID { get; set; } public CarTypes CarType { get; set; } public enum CarTypes { Van, SmallCar } } I'm trying to get only All employees that have vans allocated to ignoring those with SmallCars using

mvc.net how to edit nested viewmodel classes

由 我的梦境 提交于 2019-12-06 22:32:32
I have the following nested viewmodel class... public class CustomerModel { public string name; public Address mailingAddress; public Address billingAddress; } public class Address { public string line1; public string city; public string country; } I was hoping that there is some automated way to create an edit page, but everything that I've tried and read indicates that the framework and code-generates only handle top level properties in your viewmodel. The 'name' property is the only one generated in the view and in the action, it is only the 'name' property that is populated with the

Nested/Inner class in external file

由 穿精又带淫゛_ 提交于 2019-12-06 16:32:08
问题 I have a class MyClass and an inner class MyNestedClass like this: public class MyClass { ... public class MyNestedClass { ... } } Both classes are very long. Because of that i'd like to seperate them in two different files, without breaking the hierarchy. This is because the nested class shouldn't be visible to the programmer who uses MyClass. Is there a way to achieve that? 回答1: You can make the inner class package private which means that it will only be accessible from other classes in

How to call a method from a nested class, Java?

由 馋奶兔 提交于 2019-12-06 11:44:31
How to call methodTwo(); from methodOne(); ? class Name { void methodOne() { class InnerClass { void methodTwo() { } } } } Thank You! You need to create an instance of the InnerClass , in the same way as any other instance method needs an instance on which to call it: class Name { void methodOne() { class InnerClass { void methodTwo() { } } InnerClass x = new InnerClass(); x.methodTwo(); } } It's worth being careful before doing this - I don't think I've ever seen a named class declared within a method in the production code I've been associated with. Normally I'd either use an anonymous inner

C++ non-member functions for nested template classes

由 烂漫一生 提交于 2019-12-06 11:27:33
问题 I have been writing several class templates that contain nested iterator classes, for which an equality comparison is required. As I believe is fairly typical, the comparison is performed with a non-member (and non-friend) operator== function. In doing so, my compiler (I'm using Mingw32 GCC 4.4 with flags -O3 -g -Wall ) fails to find the function and I have run out of possible reasons. In the rather large block of code below there are three classes: a Base class, a Composed class that holds a
订阅 nested-class