DateTime?startDate=null;后面赋值格式化问题,在线等,急DateTime?startDate=null;DateTime?endDate=null;if(Day!=0){startDate=newDateTime(Year,Month,Day);endDate=startDate.Value.AddDays(1);}if(startDate!=null){condition.Ap

Question

DateTime? startDate = null;后面赋值格式化问题,在线等,急
DateTime? startDate = null;
DateTime? endDate = null;
if (Day != 0)
{
startDate = new DateTime(Year, Month, Day);
endDate = startDate.Value.AddDays(1);
}
if (startDate != null)
{
condition.AppendFormat(" and OutDate between '{0}' and '{1}' ", startDate.ToString("yyyy-MM-dd"), endDate.ToString("yyyy-MM-dd"));
}
startDate.ToString("yyyy-MM-dd"), endDate.ToString("yyyy-MM-dd")-----这个toString报错,说没有参数

Answer 1

(DateTime)startDate.ToString("yyyy-MM-dd"),
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