private void btnShowSell_Click(object sender, EventArgs e) { if (_frmAddNewBook == null || _frmAddNewBook.IsDisposed) { _frmAddNewBook = new frmBooks(); _frmAddNewBook.MdiParent = this; } _frmAddNewBook.Show(); _frmAddNewBook.BringToFront(); }
private void bookTitleMangeToolStripMenuItem_Click(object sender, EventArgs e) { if (_frmAddNewBook == null || _frmAddNewBook.IsDisposed) { _frmAddNewBook = new frmBooks(); _frmAddNewBook.MdiParent = this; } _frmAddNewBook.Show(); _frmAddNewBook.BringToFront(); }