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cant  delete image  because it used by anather process

Posted on 2009-07-03
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245 Views
Last Modified: 2013-12-17
i cant delete the image after i process to DB ,i dont know how to release it .please look to the code.
thank you
private void btnSave_Click(object sender, EventArgs e)
        {
            DirectoryInfo di = new DirectoryInfo("C:/MyDir");
            FileInfo[] rgFiles = di.GetFiles("*.jpg");
            foreach (FileInfo fi in rgFiles){
            try
            {
                //Read Image Bytes into a byte array
                byte[] imageSampleData = ReadImageToBytes(fi.FullName);
 
                //Initialize SQL Server Connection
                SqlConnection con = new SqlConnection(txtConnectionString.Text);
 
                //Set insert query
                string query = "INSERT INTO tblImages (FullPath,MyImageSample) values(@FullPath, @MyImageSample)";
 
                //Initialize SqlCommand object for insert.
                SqlCommand cmd = new SqlCommand(query, con);
 
                cmd.Parameters.Add(new SqlParameter("@FullPath",
                                            (object)fi.FullName));
 
                cmd.Parameters.Add(new SqlParameter("@MyImageSample",
                                                    (object)imageSampleData));
 
                //Open connection and execute insert query.
                con.Open();
                cmd.ExecuteNonQuery();
                con.Close();
               
                
            }
            catch
            {
                MessageBox.Show("Error while saving image.", "Error");
            }
            fi.Delete();

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Question by:mark222
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5 Comments
 
LVL 53

Expert Comment

by:Dhaest
ID: 24772347
Do you want to delete all the images from the directory ?

By the way, fi.Delete() --> which file do you want to delete, because it's outside the loop. It will always contain the latest file :)
0
 

Author Comment

by:mark222
ID: 24772517
thank Dhaest, no it is inside the loop but forget to copy the last char }.
0
 
LVL 53

Expert Comment

by:Dhaest
ID: 24772541
You can try the following. Add the following items behind con.Close();
(probably one of those will block you)
imageSampleData  = null;
cmd = null;
0
 

Author Comment

by:mark222
ID: 24772565
not working , still same problem
0
 

Accepted Solution

by:
mark222 earned 0 total points
ID: 24772672
it is solved ,the problem because  FileStream fStream was not close.
thank you Dhaest
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