private void buttonX2_Click(object sender, EventArgs e)
        {
            string DocumentList;
            DocumentLibraryForm library = new DocumentLibraryForm();

            library.ShowDialog(this);
            if (library.DocumentList != "")
            {
                this.listView1.BeginUpdate();
                DocumentList = library.DocumentList;
                foreach (string now in DocumentList.Split('\n'))
                {
                    if (now != "")
                    {
                        this.listView1.Items.Add(now);
                    }
                }
                this.listView1.EndUpdate();
            }
            UpdateName();
        }
        private void buttonItem2_Click(object sender, EventArgs e)
        {
            string DocumentList;

            DocumentSearch.SearchMainForm searchForm = new DocumentSearch.SearchMainForm();

            searchForm.ShowDialog(this);
            if (searchForm.returnBookStr != "")
            {
                this.listView1.BeginUpdate();
                DocumentList = searchForm.returnBookStr;
                foreach (string now in DocumentList.Split('\n'))
                {
                    if (now != "")
                    {
                        this.listView1.Items.Add(now);
                    }
                }
                this.listView1.EndUpdate();
            }
            UpdateName();
        }