How do I set a dictionary size for Activator.CreateInstance?

Question

我想用Activator.CreateInstance设置字典的初始大小，请问是什么语法？

var collection = Activator.CreateInstance(someDictionaryType) as IDictionary; 

Answer 1

如果您想使用表示容量的int参数调用Dictionary构造函数 ，请传递具有单个元素的object数组 - 大小：

var collection = Activator.CreateInstance(someDictionaryType, new object[] {123}) as IDictionary;