using await inside properties in C#

Possible Duplicate:
How to call an async method from a getter or setter?

I'm trying to implement a property that'll use the Sqlite await inside it:

public int ID {
        get
        {
            if (_id != null)
            {
                return _id;
            }
            if (string.IsNullOrEmpty(ImageName))
            {
                return -1;
            }
            var query = CurrentConnection.Table<Image>().Where(i => i.ImageName == ImageName);
            var result = await query.ToListAsync();
            ...other code

However, since a property is not set to await(tried that, doesn't work), I can't use await inside a property.

Any way to get around this besides using a method instead of a property?