System.IO.File.GetLastWriteTime takes a very long time to return results

[grt3kl]

Does anyone know of any known problems with File.GetLastWriteTime? When I use it in the following code, it literally takes upwards of 30 seconds to retrieve the results. If I only return the filenames (and not the last time the files were written to), the results will be returned in about 1 second. I'm not sure if I am doing something wrong or if there is perhaps a known problem with this. Any feedback or help is greatly appreicated. Thanks!
-Greg

Code Block

private void button3_Click(object sender, EventArgs e)
{
string terminal = textBox1.Text;
string[] files = Directory.GetFiles(@"\\" + terminal + "PC01" + @"\C$\OUTPUT");

foreach (string file in files)
{
dataGridView1.Rows.Add(file.Substring(28, file.Length - 28),File.GetLastWriteTime(file));
}
}

​

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