//sử dụng Linq private async void MtyAdd_Click(object sender, EventArgs e) { using (frmAddFlower frm = new frmAddFlower(new hoa() { TheForest = false })) { if (frm.ShowDialog() == DialogResult.OK) { try { hoaBindingSource.Add(frm.hoa); db.hoas.Add(frm.hoa); await db.SaveChangesAsync(); } catch (Exception ex) { MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK, MessageBoxIcon.Error); } } } }
private async void MtEdit_Click(object sender, EventArgs e) { hoa obj = hoaBindingSource.Current as hoa; if (obj != null)// kiểm tra data obj khác nulll thì chạy { using (frmAddFlower frm = new frmAddFlower(obj)) { if (frm.ShowDialog() == DialogResult.OK) { try { hoaBindingSource.EndEdit(); await db.SaveChangesAsync(); } catch (Exception ex) { MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK, MessageBoxIcon.Error); } } } } }