Vb.net to C# conversion Error cs0103

Question

I have made a conversion

Answer 1

That is a VB "parameterized property" - there is no direct C# equivalent. The closest equivalent in C# is to make it a regular method (which is called the same if the original parameterized property only has a 'get'):

public Ship GetShip(ShipName name)
{
    if (name == ShipName.None)
        return null;
    else
        return _Ships[name];
}

Answer 2

You should convert it to an accessor:

public Ship this[ShipName name]
{
    get 
    { 
        if(name == ShipName.None)
        {
            return null;
        }
        return _Ships[name]; 
    }
}