var actions = new Dictionary<string, Action>();
actions.Add("Lucene (Suche) Service neustarten", restartApp);

foreach (KeyValuePair<string, Action> entry in actions)
{
    // do something with entry.Value or entry.Key
    Debug.WriteLine(entry.Key);
    Debug.WriteLine(entry.Value);
    Delegate dicFunc = new Action(() => entry.Value());

    Button action_button = new Button();
    action_button.Text = entry.Key;
    action_button.Click += new EventHandler(dicFunc);

    groupBox_article_actions.Controls.Add(action_button);
}

void restartApp()
{
    MessageBox.Show("Restarted");
}