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，请问该语法是什么？

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

Answer 1

如果你想叫一个Dictionary constructor with an int parameter representing capacity，传递一个object阵列的单个元素 - 大小：

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