I would like to create a strongly type list and decide the type in runtime. This is my code.I thought it should work, but it doesn't :)

        Type elementType = Type.GetType(parts[0].Trim(),false,true);
        var elementsBeingSet = new List<elementType>();

would you have any ideat how to create a strongly typed list whose type I will decide in runtime ?

Duplicate: here are other versions:

• Is it impossible to use Generics dynamically?
• Declare a generic type instance dynamically
• Calling generic method with a type argument known only at execution time

最佳答案

使用Type.MakeGenericType(type[]):


Type elementType = GetElementType(); // get this type at runtime
Type listType = typeof(List<>);
Type combinedType = listType.MakeGenericType(elementType);
IList elements = (IList) Activator.CreateInstance(combinedType);


您必须使用IList保留结果-因为您不知道在运行时将使用的实际类型。

对于具有多个类型参数的泛型类型，您可以使用Dictionary<,>之类的东西。

另请参阅http://msdn.microsoft.com/en-us/library/system.type.makegenerictype.aspx

关于c# - 确定运行时的类型并以通用类型应用它-我该怎么做？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/326285/