using System;
using System.Windows;
 
//...
 
private string directoriodelarchivo;
 
//...
 
private void opendicomdir_Click(object sender, EventArgs e)
{
    LogValue("Before GetDirectoryName");
    directoriodelarchivo = System.IO.Path.GetDirectoryName(ofd.FileName);
    LogValue("After GetDirectoryName");
 
    var form = new dicomdirselectionform(_reader);
    form.ShowDialog();
    LogValue("After ShowDialog");
}
 
private void LogValue(string note)
{
    MessageBox.Show(string.Format("{0}: {1}", note, directoriodelarchivo ?? "(null)"));
}

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