private void RemoveBtn_Click(object sender, EventArgs e) { try { if (string.IsNullOrEmpty(bookTextBox.Text) || string.IsNullOrEmpty(QuantityRemovedTxt.Text)) { MessageBox.Show("Enter Book Name And Quantity", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning); } else { quantity = int.Parse(QuantityRemovedTxt.Text); inventory = ob.BookInventory; remove1 = inventory - quantity; if (remove1 >= 0) { sd.RemoveBook1(name, remove1); MessageBox.Show("Book Quantity Removed Successfully", "Congratulation", MessageBoxButtons.OK, MessageBoxIcon.Asterisk); } else { MessageBox.Show("Book is not available."); } } } catch (FormatException) { MessageBox.Show("Book Quantity Can Not Be Name", "Invalid Operation", MessageBoxButtons.OK, MessageBoxIcon.Warning); } }
private void AddBtn_Click(object sender, EventArgs e) { try { string name; info.BookTitle = booktitletxt.Text; name = info.BookTitle; info.AuthorName = AuthorNameTxt.Text; info.BookInventory = int.Parse(QuantityTxt.Text); inventory = ob.BookInventory; inventory1 = info.BookInventory; quantity = inventory + inventory1; if (authorNameLabel.Text == "") { cm.InsertBook(info); MessageBox.Show("Book Added Successfully", "Congratulation", MessageBoxButtons.OK, MessageBoxIcon.Asterisk); } else { sd.RemoveBook1(name, quantity); MessageBox.Show("Book Added Successfully", "Congratulation", MessageBoxButtons.OK, MessageBoxIcon.Asterisk); } } catch (FormatException) { MessageBox.Show("Book Quantity Can Not Be Name", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning); } }