C# (CSharp) WindowsFormsApp3 add_book_frm Exemples

Exemple #1

 public static add_book_frm getInstance()
 {
     if (uniqueInstance == null)
     {
         uniqueInstance = new add_book_frm();
     }
     return(uniqueInstance);
 }

Exemple #2

        private void toolStripButton1_Click(object sender, EventArgs e)
        {
            add_book_frm frm = add_book_frm.getInstance();

            set_child_frm(frm, panel1);
            frm.read_from_database_to_listview();
            frm.BringToFront();
        }