private void btnRemoveAction_Click(object sender, EventArgs e) { int salesItem = Int32.Parse(txtSalesBookId.Text); using (var context = new BookLotEntities()) { SalesBook booksToDelete = new SalesBook() { SalesBookId = salesItem }; context.Entry(booksToDelete).State = EntityState.Deleted; context.SaveChanges(); } }
private void btnSaveAction_Click(object sender, EventArgs e) { try { SalesBook sales = new SalesBook(); sales.SalesBookId = Int32.Parse(txtSalesBookId.Text); sales.TitleAction = txtTitleAction.Text; sales.BookId = Int32.Parse(txt_BookId.Text); BookLotEntities lotEntities = new BookLotEntities(); lotEntities.SalesBook.Add(sales); lotEntities.SaveChanges(); } catch (Exception ex) { MessageBox.Show("Bad Format"); } }
private void btnUpdateAction_Click(object sender, EventArgs e) { using (var context = new BookLotEntities()) { int salesBookId = Int32.Parse(txtSalesBookId.Text); SalesBook sales = context.SalesBook.Find(salesBookId); if (sales != null) { try { sales.SalesBookId = Int32.Parse(txtSalesBookId.Text); sales.TitleAction = txtTitleAction.Text; sales.BookId = Int32.Parse(txt_BookId.Text); context.SaveChanges(); } catch (Exception ex) { MessageBox.Show("Just format is bad :)"); } } } }