问题描述
i have a class
public class CloudFileVersion
{
public int FileVersionID { get; set; }
public int CloudFileID { get; set; }
public string FileName { get; set; }
public string DestinationPath { get; set; }
public string FileDate { get; set; }
public long FileSize { get; set; }
public string CreationDate { get; set; }
public int PlanID { get; set; }
public string CloudFileName { get; set; }
}
List<CloudFileVersion> objFileVersionlst
iam looping to find old file
int deleteDays=10;
foreach (var veritem in objFileVersionlst)
{
DateTime dtver = DateTime.ParseExact(veritem.FileDate, "yyyyMMddhhmmss", CultureInfo.InvariantCulture);
int ActualDays = (int)(DateTime.Now.ToUniversalTime() - dtver).TotalDays;
if ( ActualDays >= deleteDays)
{
//delete the file
}
}
我可以解决这个问题而无需循环使用linq
我尝试了什么：
目前iam像这样循环
foreach（var objFileVersionlst中的veritem）
{
DateTime dtver = DateTime.ParseExact（veritem.FileDate，yyyyMMddhhmmss，CultureInfo.InvariantCulture）;
int ActualDays =（int）（DateTime.Now.ToUniversalTime（） - dtver）.TotalDays;
if（ActualDays> = deleteDays）
{
//删除文件
}
}
can i solve this problem without loop using linq
What I have tried:
currently iam looping like this
foreach (var veritem in objFileVersionlst)
{
DateTime dtver = DateTime.ParseExact(veritem.FileDate, "yyyyMMddhhmmss", CultureInfo.InvariantCulture);
int ActualDays = (int)(DateTime.Now.ToUniversalTime() - dtver).TotalDays;
if ( ActualDays >= deleteDays)
{
//delete the file
}
}
推荐答案
objFileVersionlst.Where(veritem=>(DateTime.Now.ToUniversalTime() - DateTime.ParseExact(veritem.FileDate, "yyyyMMddhhmmss", CultureInfo.InvariantCulture).TotalDays >= deleteDays).ForEach((veritem)=>{
// delete the file
});
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