Carrotware.Web.UI.Controls.CarrotGridView.ResetSortToColumn C# (CSharp) Метод

        private string ResetSortToColumn(string sSortField)
        {
            if (SortField.Length < 1) {
                SortField = sSortField;
                SortDir = string.Empty;
            } else {
                if (SortField.ToLowerInvariant() != sSortField.ToLowerInvariant()) {
                    SortDir = string.Empty;  //previous sort not the same field, force ASC
                }
                SortField = sSortField;
            }

            if (SortDir.Trim().ToUpperInvariant().IndexOf("ASC") < 0) {
                SortDir = "ASC";
            } else {
                SortDir = "DESC";
            }
            sSortField = SortField + "   " + SortDir;
            return sSortField;
        }