移动文件 C# 总是抛出异常

Question

enter image description here

public void MoveFiles(string[]filesDics, string to, FilesErrorDelegate filesError) {
            FileInfo f;
            foreach (string file in filesDics) {
                try {
                    f = new FileInfo(file);
                    f.MoveTo(to + "\\" + f.Name);
                }
                catch (Exception) {
                    bool ifContinue = filesError(file);
                    if (ifContinue) {
                        break;
                    }
                }

            }
        }







and here i am using the function:
private void BtnMove_Click(object sender, EventArgs e) {
            string[] filesNamesArray = GetFilesArray();
            mf.MoveFiles(filesNamesArray, @"C:\Users\76599\Documents\filesManager", delegates[selectedError]);

        }

does anyone know?? it is very weird becuz that my friend used exactly the same code in their computer and it did work!

the exception says there is another process using this file. but i don't see any other process is using it.

thanks!!!!!!!!!!!!!

Answer 1

If another process is locking the file, you won't be able to move the file up until the other process is closed.

You can find which process is locking the file using approach such as: https://thegeekpage.com/how-to-find-out-which-process-is-locking-a-file-or-folder-in-windows-10/

You also need to not have an command prompt, notepad++ or windows explorer open within those directory as they would lock the file. But a lot of other process has the same behavior.

Alternatively, for files which are locked, instead of moving them, you could copy them and leave the original lock file depending on your needs. You could also have a list of files which were locked and attempt to delete them at a future time. It is also possible that locked file can't be copied depending on the type of lock, which the only solution would be to close the process locking the file.