按日期asp.net过滤DirectoryInfo的文件 [英] Filter DirectoryInfo files by date in asp.net
本文介绍了按日期asp.net过滤DirectoryInfo的文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我填充使用指定的路径(DirectoryInfo的)文件的DataGrid控件。结果
我想过滤基于用户指定日期范围内的文件(开始日期和放大器;结束日期)。
而搜索S / O,我发现这职位,但我得到的DateComparer错误('DateComparer是一个类型,不能被用来作为一个前pression。)
如何按日期过滤任何其他建议?
下面是我的code:
昏暗dirInfo作为新DirectoryInfo的(strDirectoryPath)
昏暗dStartDate为DATETIME =03/01/2011
昏暗dEndDate为DATETIME =6/30/2011
昏暗的文件作为的FileInfo = dirInfo.GetFiles()式。(功能(文件)Files.CreationTime> =(dStartDate)AndAlso运算Files.CreationTime< = dEndDate) datagrid.DataSource =文件
datagrid.DataBind()
解决方案
的DateTime your_start_date =新日期时间(2011,1,1);
日期时间your_end_date =新日期时间(2011,10,1);
的FileInfo []文件=新的DirectoryInfo(@C:\\)。的GetFiles(),其中(X => x.CreationTime> =(your_start_date)及和放大器; x.CreationTime< =(your_end_date))ToArray的( );的foreach(在文件VAR项)
{
Console.WriteLine(item.Name);
}
在我的测试情况下,打印出:
copy_one.jpg
copy_one_one.jpg
copy_one_one_one.jpg
的hiberfil.sys
one.jpg
PAGEFILE.SYS
PcapDotNet.snk
UPDATE(VB版):
昏暗your_start_date作为新的DateTime(2011,1,1)
昏暗your_end_date作为新的DateTime(2011,10,1)
。昏暗的文件作为的FileInfo()=新的DirectoryInfo(C:\\)的GetFiles()式(功能(X)x.CreationTime> =(your_start_date)AndAlso运算x.CreationTime< =(your_end_date))ToArray的(。 )对于每个项目的FileInfo在文件列表中
Console.WriteLine(item.Name)
下一个
I am populating a datagrid control using files in a specified path (DirectoryInfo).
I would like to filter the files based on a user specified date range (start date & end date).
While search S/O, I found this post, but I am getting an error on DateComparer ("'DateComparer' is a type and cannot be used as an expression.")
Any other suggestions on how to filter by date?
Here is my code:
Dim dirInfo As New DirectoryInfo(strDirectoryPath)
Dim dStartDate As DateTime = "03/01/2011"
Dim dEndDate As DateTime = "6/30/2011"
Dim Files As FileInfo = dirInfo.GetFiles().Where(Function(Files) Files.CreationTime >= (dStartDate) AndAlso Files.CreationTime <= dEndDate)
datagrid.DataSource = Files
datagrid.DataBind()
解决方案
DateTime your_start_date = new DateTime(2011,1,1);
DateTime your_end_date = new DateTime(2011,10,1);
FileInfo [] files = new DirectoryInfo(@"c:\").GetFiles().Where(x=>x.CreationTime>=(your_start_date) && x.CreationTime<=(your_end_date)).ToArray();
foreach(var item in files)
{
Console.WriteLine(item.Name);
}
On my test case prints out:
copy_one.jpg
copy_one_one.jpg
copy_one_one_one.jpg
hiberfil.sys
one.jpg
pagefile.sys
PcapDotNet.snk
UPDATE (VB version):
Dim your_start_date As New DateTime(2011, 1, 1)
Dim your_end_date As New DateTime(2011, 10, 1)
Dim files As FileInfo() = New DirectoryInfo("c:\").GetFiles().Where(Function(x) x.CreationTime >= (your_start_date) AndAlso x.CreationTime <= (your_end_date)).ToArray()
For Each item As FileInfo In files
Console.WriteLine(item.Name)
Next
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