How do you read from a file that is being used by another process?

How do you read from a file that is being used by another process?

Reading a file used by another process [duplicate]

1. Monitor the file.
2. Make a temp copy of it when it changes.
3. Read the temp copy.
4. Delete the temp copy.

How do you resolve the process Cannot access the file because it is being used by another process?

Process cannot access file because it is being used by another process error message. To resolve this error: Press Ctrl + Alt + Delete, then click Task Manager. Ensure you’re on the Processes tab.

Can you read a locked file?

You need to kill the process that has the lock of the file if you want to read it OR if you have the source code of the file that is locking the file to change this one to use FileShare. ReadWrite instead of just FileShare.

How do I display the contents of a text file in VB NET?

If you want to display text, use a TextBox . Since it is likely that the file will contain multiple lines, you can set the . Multiline property to True , so that the TextBox will display it correctly. or simply use the System.

How do you check if a file is being used by another process in Windows?

Identify which handle or DLL is using a file

1. Open Process Explorer. Running as administrator.
2. Enter the keyboard shortcut Ctrl+F.
3. A search dialog box will open.
4. Type in the name of the locked file or other file of interest.
5. Click the button “Search”.
6. A list will be generated.

How do you check if the file is being used by another process C#?

The common managed way to check whether a file is in use is to open the file in a try block. If the file is in use, it will throw an IOException. Another way to check whether a file is in use is to call the CreateFile API. If a file is in use, the handle return is invalid.

How do you handle the process Cannot access the file because it is being used by another process in Java?

4 Answers

1. pick up a file (main thread should do it)
2. publish a file (call other thread to do it )
3. delete the file (called thread should delete it)
4. check if any file present (again main thread can do it)

How do you lock a file so it Cannot be edited?

On the Review tab, in the Protect group, click Protect Document, and then click Restrict Formatting and Editing. In the Editing restrictions area, select the Allow only this type of editing in the document check box. In the list of editing restrictions, click No changes (Read only).

How do you make a locked file?

Select the file or folder you want to encrypt. Right-click the file or folder and select Properties. On the General tab, click the Advanced button. Check the box for the “Encrypt contents to secure data” option, then click OK on both windows.

How read data from a text file line by line in VB net?

Reading a Text File Line by Line

1. Do While objReader.Peek() <> -1. The Peek method takes a peek at the incoming text characters.
2. objReader.ReadLine() So the ReadLine method reads each line for you, instead of the ReadToEnd method which gets the whole of the text file.
3. “UserName1, Password1, UserName2, Password2”

Is the streamreader constructor used in fileshare.read?

The StreamReader () constructor uses FileShare.Read and doesn’t have an option to use a different value. Using the StreamReader (Stream) constructor is instead is indeed the workaround. Beware however that this sharing mode also has implications for your code. You cannot predict when the other process flushes the file.

What to do if other application allows only reading?

If the other application allowed only reading, use FileShare.Read; if it allowed both reading and writing, use FileShare.ReadWrite. StreamReader uses only FileShare.Read mode, so you can already assume that that’s not the right one.

Is it possible to read the end of a file?

You won’t get a very reliable end-of-file indication, getting a partial last line is quite possible. In particular troublesome when you keep reading the file to try to get whatever the program appended. This should work as long as the other application has not locked the file exclusively.