static property in c# 6

Question

I\'m writing a small code to more understand about property and static property. Like these:

class UserIdentity
{
    public static         


        

Answer 1

You're trying to assign to a read only static property in an instance constructor. That would cause it to be assigned every time a new instance is created, which would mean it's not read only. You need to assign to it in the static constructor:

public static IDictionary OnlineUsers { get; }

static UserIdentity()
{
    OnlineUsers = new Dictionary();
}

Or you can just do it inline:

public static IDictionary OnlineUsers { get; } = new Dictionary();