private void Button1_Click(object sender, EventArgs e) { string usName = textBox1.Text; Library.User us = new Library.User(usName); string bkName = textBox2.Text; string bkAuthor = textBox3.Text; string bkTheme = textBox4.Text; Library.Book bk = new Library.Book(bkName, bkAuthor, bkTheme, true); if (Lib.users.Contains(us) && Lib.books.ContainsKey(bk) && bk.inLib) { us.myBooks.Add(bk); Lib.books.Remove(bk); Lib.books.Add(bk, false); Hide(); MessageBox.Show("Book have been succesfully returned"); } else if (!Lib.users.Contains(us)) { label4.Visible = true; } else if (!Lib.books.ContainsKey(bk)) { label3.Visible = true; } }
private void Button6_Click(object sender, EventArgs e) { string name = textBox6.Text; Library.User us = new Library.User(name); if (!lib.users.Contains(us)) { lib.users.Add(us); } }