//Sự kiện click cho menu item File --> New private void newToolStripMenuItem_Click(object sender, EventArgs e) { DialogResult dlg = this.openFileDialog1.ShowDialog(); if (dlg == DialogResult.OK) { frmPicture frm = new frmPicture(openFileDialog1.FileName); frm.MdiParent = this; count++; frm.Text = "Picture -" + count + "-" + openFileDialog1.FileName; frm.Show(); } this.toolStripStatusLabel1.Text = "Tổng số Form con:" + count.ToString(); }
//Sự kiện click cho menu item File --> Save As private void saveAsToolStripMenuItem_Click(object sender, EventArgs e) { DialogResult dlg = this.saveFileDialog1.ShowDialog(); if (dlg == DialogResult.OK) { frmPicture frm = this.ActiveMdiChild as frmPicture; try { Image img = frm.pbHinh.Image; img.Save(saveFileDialog1.FileName, ImageFormat.Bmp); } catch { MessageBox.Show("Lỗi lưu file"); } } }