c# - 获取两个日期之间的文件

Question

如何列出两个日期之间的文件。现在它会遍历文件夹中的每个文件并返回所有文件。

  protected void btnListItems_Click(object sender, EventArgs e)
{
    lblMessage.Visible = false;
    //lblEnddatse.Visible = true;
    Boolean status = true;
    Util objUtil = new Util();
    String Message = "";
    DateTime SDate = new DateTime();
    DateTime EDate = new DateTime();
    string str = "";
    DataTable tbl = new DataTable();
    DataTable dt = new DataTable();
    DataRow dr;
    String[] s1;


    //DirectoryInfo d = new DirectoryInfo();
    s1 = Directory.GetFiles(@"C:/PCRequestFiles");
    for (int i = 0; i <= s1.Length - 1; i++)
    {
        if (i == 0)
        {
            //Add Data Grid Columns with name
            dt.Columns.Add("FileName");
            dt.Columns.Add("GeneratedTime");
        }
        //Get each file information
        FileInfo f = new FileInfo(s1[i]);
        FileSystemInfo f1 = new FileInfo(s1[i]);
        dr = dt.NewRow();
        //Get File name of each file name
        dr["FileName"] = f1.Name;
        dr["GeneratedTime"] = f1.CreationTime.Date.ToString("dd/MM/yyyy");
        string a = f1.CreationTime.Date.ToString("dd/MM/yyyy");
        //Insert collected file details in Datatable
        string fromdate = txtFromDate.Text.ToString();
        string todate = txtToDate.Text.ToString();

        dt.Rows.Add(dr);



        if ((f.Length / 1024) > 5000)
        {
           lblMessage .Text = "" + f1.Name + " had reach its size limit.";
        }
        else
        { }

    }
    if (dt.Rows.Count > 0)
    {
        gvFileGenStatus.DataSource = dt;
        gvFileGenStatus.DataBind();
    }





}

我试图给出条件，但它不起作用。有没有办法使用日期过滤器来列出目录中的文件名。 感谢您提前提供的所有帮助)。

Answer 1

我确信这会有所帮助:

DirectoryInfo DirInfo = new DirectoryInfo(@"C:/PCRequestFiles");

var files = from f in DirInfo.EnumerateFiles()
       where f.CreationTimeUtc < EndDate && f.CreationTimeUtc > StartDate
       select f;