以下代码显示此错误
对象必须实现 IConvertible
当我在 LINQ 表达式中添加 where 子句来比较DateTime
字段时。
我尝试使用Convert.ToDateTime(c.ETC) >= startday
但仍然是同样的错误。
var excel = new ExcelQueryFactory(excelfilename);
excel.AddMapping<BulkMovementItem>(x => x.ETC, "ETC");
var newrailtruckmovements = (from c in excel.Worksheet<BulkMovementItem>(sheetname)
where c.ETC > new DateTime(2015, 7, 1)
select c);
的定义BulkMovementItem
:
public class BulkMovementItem
{
public string ScheduleName { get; set; }
public string DealHeaderName { get; set; }
public string DealDetailName { get; set; }
public string ETC { get; set; }
public string RailcarName { get; set; }
public string Location { get; set; }
public string OriginLocation { get; set; }
public string FunctionType { get; set; }
public string ProductName { get; set; }
public string Volume { get; set; }
public string SupplierUniqueNbr { get; set; }
// Error Description
public string Status { get; set; }
public bool HasErrors { get; set; }
//public List<string> ErrorDetails { get; set; }
}