c# - 请解释这在 C# 中的含义？

Question

NotifyOfPropertyChange<ObservableCollection<BaseMdmViewModelCollection>>(() => SubItemsViewModels);

Answer 1

它正在调用带有签名的通用函数

NotifyOfPropertyChange<T>(Func<BaseMdmViewModelCollection>)

() => SubItemsViewModels

等同于

delegate { return SubItemsViewModels; }

换句话说，

NotifyOfPropertyChange<ObservableCollection<BaseMdmViewModelCollection>>(() => SubItemsViewModels);

与

相同

NotifyOfPropertyChange<ObservableCollection<BaseMdmViewModelCollection>>(Foo);

Foo 会在哪里

private BaseMdmViewModelCollection Foo()
{
    return SubItemsViewModels;
}