Sample code in C# .Net to delete files in folders and subfolders
//to call the below method
EmptyFolder(new DirectoryInfo(@"C:\your Path"))
using System.IO; // dont forget to use this header
//Method to delete all files in the folder and subfolders
private void EmptyFolder(DirectoryInfo directoryInfo)
{
foreach (FileInfo file in directoryInfo.GetFiles())
{
File.Delete();
}
foreach (DirectoryInfo subfolder in directoryInfo.GetDirectories())
{
EmptyFolder(subfolder);
}
}
let us know if you have any problem
Thursday, March 20, 2008
how to delete files in folder and subfolders in C#
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8 comments:
thanks alot
this is not working, you got a little typo in here:
File.Delete(); should be:
file.Delete();
to make it work correctly
and if I'm lso want to selete the subfolders?
It does a recursive call when calling EmptyFolder(subfolder), which will delete the subfolders.
just what i was looking for, thanks!
at first i was a litlle confused, because in my app the path of the folder was taken from a database table, so it was passed inside the procedure, giving the object only the id of the row where it was.
Looking closely i realized that it was not possible, so i maked the second procedure to get the path, and from there i called the first one.
I also have an if clause, deleting only the files older than a number of days, also taken from the database.
public void ClearFiles_OlderThan(DirectoryInfo directoryInfo, int id)
{
DataBase db = new DataBase();
DataTable dt = new DataTable();
string SQLcommandE = "SELECT timeEX_zile FROM tbl_DeleteFilesOlderThan WHERE ID_delP=";
dt = db.LoadTable(SQLcommandE + id);
object OlderThan = new object();
OlderThan = dt.Rows[0][0];
string o = OlderThan.ToString();
double days = Convert.ToDouble(o);
foreach (FileInfo file in directoryInfo.GetFiles())
{
System.DateTime today = System.DateTime.Now;
System.DateTime older = today.AddDays(-days);
if (file.CreationTime < older)
{
file.Delete();
}
else
{
}
}
foreach (DirectoryInfo subfolder in directoryInfo.GetDirectories())
{
ClearFiles_OlderThan(subfolder, id);
}
}
public void ClearFiles_OlderThanID(int id)
{
DataBase db = new DataBase();
DataTable dt = new DataTable();
object FolderPath = new object();
string SQLcommandP = "SELECT delP_path FROM tbl_FolderToDeletePaths WHERE ID_delP=";
dt = db.LoadTable(SQLcommandP + id);
FolderPath = dt.Rows[0][0];
string path = (string)FolderPath;
DirectoryInfo info = new DirectoryInfo(path);
ClearFiles_OlderThan(new DirectoryInfo (path), id);
}
is this code can be apply to windows mobile device?
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