mRemoteNG.UI.Window.WindowList.IndexByObject C# (CSharp) Method

        private BaseWindow IndexByObject(object Index)
        {
            try
            {
                int objectIndex = this.List.IndexOf(Index);
                return IndexByNumber(objectIndex);
            }
            catch (ArgumentOutOfRangeException e)
            {
                throw new ArgumentOutOfRangeException(e.ParamName, "Object was not present in the collection.");
            }
        }