System.Data.DataViewSettingCollection.this C# (CSharp) Method

        public virtual DataViewSetting this[int index]
        {
            get
            {
                DataTable dt = GetTable(index);
                if (dt != null)
                {
                    return this[dt];
                }
                return null;
            }
            set
            {
                DataTable dt = GetTable(index);
                if (dt != null)
                {
                    this[dt] = value;
                }
            }
        }