private void buttonOK_Click(object sender, EventArgs e)
        {
            string key  = textBox1.Text.Replace(";", "_");
            int    num  = 0;
            string str2 = key;

            while (QTUtility.GroupPathsDic.ContainsKey(str2))
            {
                str2 = key + "_" + ++num;
            }
            key = str2;
            if (!checkBox1.Checked)
            {
                QTUtility.GroupPathsDic.Add(key, newPath);
            }
            else
            {
                QTUtility.GroupPathsDic.Add(key, Tabs.Cast <QTabItem>()
                                            .Select(item => item.CurrentPath).StringJoin(";"));
            }
        }