使用泛型类型创建字典。 [英] Creating dictionary with generic types.

问题描述

我正在尝试使用c＃中的字典，如下所示

Hi ,

I''m trying to use a dictionary in c# as follows

Dictionary<Type,IStorage<IEntity>>

似乎是声明和初始化都没问题。

然后我创建一个

and seems to be the declaration and initialization are ok .
Then I create an instance of

Orderstore:IStorage<Order>

Orderstore实现IStorage和Order实现IEntity。



但是当我尝试将Orderstore添加到字典中，它说Argument type Orderstore不能分配给参数类型IStorage< order>

我想知道有谁可以帮我这个。在此先感谢。

where Orderstore implements the IStorage and Order implements IEntity.

But when I try to add Orderstore to the dictionary it says "Argument type Orderstore is not assignable to parameter type IStorage<order>"
I wonder anyone can help me with this. Thanks in advance.

推荐答案

使用下面给出的代码：



字典< type，isynchronizedstorage>< ; isynchronizableentity>> myOrders;



如果myOrders是字典的名称，那么使用



Orderstore< order> order = myOrders [index] as Orderstore;



TypeCast itas OrderSto0re，那么你的代码就可以了。



问候。

Use the code given below:

Dictionary<type,isynchronizedstorage><isynchronizableentity>> myOrders;

If myOrders is the name of the dictionary, then use

Orderstore<order> order = myOrders[index] as Orderstore;

TypeCast it "as OrderSto0re" then your code will work.

Regards.

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