Some times while try to deleting a file we may got a error message like
"It is being used by another person or program."
This means we can't delete a file, if it is being used.
I provide a solution to handle this kind of exception.
/// <summary>
/// This function is used to check specified file being used or not
/// </summary>
/// <param name="file">FileInfo of required file</param>
/// <returns>If that specified file is being processed
/// or not found is return true</returns>
public static Boolean IsFileLocked(FileInfo file)
{
FileStream stream = null;
try
{
//Don't change FileAccess to ReadWrite,
//because if a file is in readOnly, it fails.
stream = file.Open
(
FileMode.Open,
FileAccess.Read,
FileShare.None
);
}
catch (IOException)
{
//the file is unavailable because it is:
//still being written to
//or being processed by another thread
//or does not exist (has already been processed)
return true;
}
finally
{
if (stream != null)
stream.Close();
}
//file is not locked
return false;
}
/// This function is used to delete all files inside a folder
public static void CleanFiles()
{
if (Directory.Exists("FOLDER_PATH"))
{
var directory = new DirectoryInfo("FOLDER_PATH");
foreach (FileInfo file in directory.GetFiles())
{
if(!IsFileLocked(file)) file.Delete();
}
}
}
Source: Internet
