>This question is a follow up on my earlier Singleton question...
>
>How do you make a class Thread-Safe?
>
>Would this class be both thread-safe and a singleton?
>
>

>class MyClass
>{
>    private static readonly object _lockobj = new object();
>
>    private static MyClass instance = null;
>    public static MyClass Instance
>    {
>        get
>        {
>            if (instance == null)
>                instance = new MyClass();
>
>            return instance;
>        }
>    }
>
>    public MyClass()
>    {
>        lock (_lockobj) ;
>    }
>}
>

>
>Since the class is a singleton, and by getting a lock in the CTOR, is it now thread-safe, assuming I do
>
>

>MyClass class = MyClass.Instance.
>

>
>Thanks

I am certainly no expert on Thread Safety and I do not know all the tricks about this topic. Viv gave an excellent link to making a Singleton thread safe and I have updated my notes. There are many other aspects to thread safety and often times it deals not with a whole class but sometimes a method or a simple call to update a control. I am not sure how one actually learns Thread Safe operations other than a bit at a time as the situations come up, by keeping in mind the potential of an operation to be accessed by two threads at once.
Just my take on this topic
Tim