Error While Deleting File (after being read)

Question

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Hello,
In my application I am reading an xml file for loading data. I have used XmlReader for reading the file. File is read correctly. After reading the file, I am deleting the file but it gives error like:

"System.IO.IOException: the process cannot access the file "~\PurchaseBill.xml" because it is used by another process"

I have closed the reader. My code is like bellow:

C#

if (File.Exists(path))
{
    readFile(path);  // Reading File Here... Executing correctly
    if (File.Exists(path))
    {
        File.Delete(path);  // Error Comes Here
    }
}

Posted 30-Nov-10 0:25am

Yatin Bhagat

Updated 30-Nov-10 0:45am

Toli Cuturicu

v3

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3 solutions

Solution 2

Make sure u close file after reading.

Note for future, if u have complex code and u made a lot of operations with file, using nany processes maybe and finally u have this file locked but u dont know what process is guilty. There are some free software that help you to find out why your file is locked, sorry i cant recall exect name of software but u can search for it if needed.

Posted 30-Nov-10 4:48am

Jason Ti

Updated 30-Nov-10 4:51am

v2

Solution 3

use the following code for loading the picture in imagebox

//////
pictureBox1.Load(filePath);

Posted 3-Aug-12 2:03am

Member 7744681

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Toli Cuturicu · Accepted Answer · 2010-11-30T00:37:00

Solution 1

The file remains locked by your process.
You have to free its handle.
The key is in your void readFile(string) method.
There, you must Dispose() whatever resource you are using.

... Or, maybe, you just don't have the permission to delete the file.
Check the file's permissions and try to run the program as an administrator. Anyway, I hope that the file is not located in Program Files and you are using Vista or Seven!

Posted 30-Nov-10 0:37am

Toli Cuturicu

Updated 30-Nov-10 0:43am

v2

Comments

Dalek Dave 30-Nov-10 6:43am

Good Call.

Yatin Bhagat 30-Nov-10 6:48am

how to set the file permissions in c#.net....my file is stored in application root directory

Toli Cuturicu 30-Nov-10 6:51am

Ok. So we found the problem. Don't ever again store a user file in the application root directory! Never!
You have LocalApplicationData for this!

Yatin Bhagat 30-Nov-10 6:58am

i am creating xml file and stored it in debug folder...and after that from this location i am trying to read the file.read operation executes without any error but after that i am trying to delete this file and here comes the error

Yatin Bhagat 30-Nov-10 23:45pm

and even i am not getting Dispose() method for reader

Yatin Bhagat 1-Dec-10 0:07am

public void readFile(string path)
{
XmlReaderSettings settings = new XmlReaderSettings();
settings.ConformanceLevel = ConformanceLevel.Fragment;
settings.IgnoreWhitespace = true;
settings.IgnoreComments = true;
XmlReader reader = XmlReader.Create(path, settings);
string Rxml = "";
while (reader.Read())
{
switch (reader.NodeType)
{
case XmlNodeType.Element: // The node is an element.
Rxml = reader.Name;
break;
case XmlNodeType.Text: //Display the text in each element.
if (Rxml == "VoucherNo")
{
VoucherNo = Convert.ToInt32(reader.Value);
break;
}
else if (Rxml == "VoucherType")
{
VoucherType = reader.Value;
break;
}
else if (Rxml == "VoucherDate")
{
dtpBillDate.Value =Convert.ToDateTime(reader.Value);
break;
}
}
reader.Close();
}

This is my ReadFile() code