如何为Activator.CreateInstance设置字典大小？

Question

我想使用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

如果您想调用Dictionary constructor with an int parameter representing capacity，请使用单个元素传递object数组 - 大小：

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