How to temporarily block a file?

Question

How to temporarily block a file?

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#1 by (0 votes)

1

I'm trying like this:

OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.ShowDialog();
string filePath = openFileDialog.FileName;
Process processo = Process.Start(filePath);
FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None);
processo.WaitForExit();
MessageBox.Show("Wow!");
fileStream.Close();

It seems that fileStream blocks the file before it is opened, so from the error, one of the errors it gives is this:

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Desenhar matriz.exe - This application could not be started.
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This application could not be started.

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Sim   Não   
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c#

asked by anonymous 29.11.2016 / 02:03

1 answer

Spacing in a GridView Increase number of rows returned by select group in MySQL

score 0 · Answer 1

Try this (I've added a check for it if it's already open)

        OpenFileDialog openFileDialog = new OpenFileDialog();
        openFileDialog.ShowDialog();
        string filePath = openFileDialog.FileName;

        if (Process.GetProcessesByName(Path.GetFileNameWithoutExtension(filePath)).Count() > 0)
            MessageBox.Show("O processo já está em execução!");
        else
            Process.Start(filePath);

        using (File.Open(filePath, FileMode.Open, System.IO.FileAccess.Read))
        {
            MessageBox.Show("Wow!");
        }