private void BtnAddBook_Click(object sender, EventArgs e)
{
if (TxtBarcode.Text == "")
{
MessageBox.Show("Please enter missing fields!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (TxtBarcode.Text.Length <= 8)
{
MessageBox.Show("The Barcode's minimum accepted character length is 9.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (TxtBarcode.Text.Length == 11)
{
MessageBox.Show("The Barcode's character length must be 9, 10, 12 or 13 only.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (TxtBookTitle.Text == "")
{
MessageBox.Show("Please enter missing fields!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (TxtBookAuthor.Text == "")
{
MessageBox.Show("Please enter missing fields!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (TxtBookCategory.Text == "")
{
MessageBox.Show("Please enter missing fields!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (TxtBookPublisher.Text == "")
{
MessageBox.Show("Please enter missing fields!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
var result = MessageBox.Show("Confirm adding new record?", "Add New Record", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (result == DialogResult.Yes)
{
using (var con = new MySqlConnection(GetConnection()))
{
string command = $"INSERT INTO `lms.sad`.`tblbooks` (`Barcode`,`Book_Title`,`Book_Author`, `Book_Category`, `Publisher`) " +
"VALUES " +
$"('{TxtBarcode.Text}','{TxtBookTitle.Text}','{TxtBookAuthor.Text}','{TxtBookCategory.Text}','{TxtBookPublisher.Text}')";
con.Open();
using (var cmd = new MySqlCommand(command, con))
{
cmd.CommandType = CommandType.Text;
var i = cmd.ExecuteNonQuery();
if (i > 0)
{
MessageBox.Show("Successfully Added! Please check Book Records.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
TxtBarcode.Clear();
TxtBookTitle.Clear();
TxtBookAuthor.Clear();
TxtBookCategory.Clear();
TxtBookPublisher.Clear();
}
}
con.Close();
}
}
}
}
private void BtnClear_Click(object sender, EventArgs e)
{
TxtBookTitle.Clear();
TxtBookAuthor.Clear();
TxtBookCategory.Clear();
TxtBookPublisher.Clear();
TxtBarcode.Clear();
}
private void BtnUpdateBook_Click(object sender, EventArgs e)
{
if (TxtBookTitle.Text == "")
{
MessageBox.Show("Please fill empty fields!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (TxtBookAuthor.Text == "")
{
MessageBox.Show("Please fill empty fields!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (TxtBookCategory.Text == "")
{
MessageBox.Show("Please fill empty fields!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (TxtBookPublisher.Text == "")
{
MessageBox.Show("Please fill empty fields!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
var result = MessageBox.Show("Confirm editing new record?", "Edit New Record", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (result == DialogResult.Yes)
{
using (var con = new MySqlConnection(GetConnection()))
{
string command = $"UPDATE `lms.sad`.`tblbooks`" +
$" SET " +
$"`Book_Title`='{TxtBookTitle.Text}',`Book_Author`='{TxtBookAuthor.Text}',`Book_Category`='{TxtBookCategory.Text}',`Publisher`='{TxtBookPublisher.Text}'" +
$" WHERE `Barcode`='{TxtBarcode.Text}'";
con.Open();
using (var cmd = new MySqlCommand(command, con))
{
cmd.CommandType = CommandType.Text;
var i = cmd.ExecuteNonQuery();
if (i > 0)
{
MessageBox.Show("Successfully Updated! Please refresh Book List to view entry!", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
TxtBookTitle.Clear();
TxtBookAuthor.Clear();
TxtBookCategory.Clear();
TxtBookPublisher.Clear();
TxtBarcode.Clear();
}
}
con.Close();
}
}
}
}
