c# checking if a file is already open

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Can someone help me and show me a way of checking if a file is open such that i don't open the same file that is open...may be display a notification that the file is already open. Am using a Datagrid double click event...
here is my code..

C#

private void dgvDocs_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
       {
           Document document;

           string path;
           document = (Document)dgvDocs.CurrentRow.DataBoundItem;
           path = document.Documentpath;



           System.Diagnostics.Process.Start(path);

       }

Posted 13-Nov-12 3:46am

Code_Linc

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joshrduncan2012 13-Nov-12 9:54am

try this:

Process[] open_procs = Process.GetProcessesByName("nameOfProcess");
if(open_procs.Length > 0)
{
foreach(var proc in open_procs)
{
proc.Kill();
}
}
This kills any open processes you specify.

Code_Linc 16-Nov-12 9:47am

Thanks for all the solutions however the first solution only works on documents yet i want to check for any file types....Please anyone with a solution help!

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fjdiewornncalwe · Accepted Answer · 2012-11-13T03:50:00

C#

protected virtual bool IsFileinUse(FileInfo file)
{
     FileStream stream = null;

     try
     {
         stream = file.Open(FileMode.Open, FileAccess.ReadWrite, 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();
     }
     return false; 
}

Source: 1st Answer in this thread.[^]