Does C# have a “ThreadLocal” analog (for data members) to the “ThreadStatic” attribute?

Question

I\'ve found the \"ThreadStatic\" attribute to be extremely useful recently, but makes me now want a \"ThreadLocal\" type attribute that lets me hav

Answer 1

I ended up implementing and testing a version of what I had originally suggested:

public class ThreadLocal
{
    [ThreadStatic] private static Dictionary _lookupTable;

    private Dictionary LookupTable
    {
        get
        {
            if ( _lookupTable == null)
                _lookupTable = new Dictionary();

            return _lookupTable;
        }
    }


    private object key = new object(); //lazy hash key creation handles replacement
    private T originalValue;

    public ThreadLocal( T value )
    {
        originalValue = value;
    }

    ~ThreadLocal()
    {
        LookupTable.Remove(key);
    }

    public void Set( T value)
    {
        LookupTable[key] = value;
    }

    public T Get()
    {
        T returnValue = default(T);
        if (!LookupTable.TryGetValue(key, out returnValue))
            Set(originalValue);

        return returnValue;
    }
}