private void button1_Click(object sender, EventArgs e)
{
try
{
dbconnection.Open();
string query = "select Car_Number from cars where Car_Number='" + txtCarNumber.Text + "'";
MySqlCommand com = new MySqlCommand(query, dbconnection);
if (com.ExecuteScalar() == null)
{
if (txtCarNumber.Text != "")
{
string qeury = "insert into cars (Car_Number,Car_Capacity,meter_reading,Openning_Account,Car_Value,DepreciationPeriod,PremiumDepreciation)values(@Car_Number,@Car_Capacity,@meter_reading,@Openning_Account,@Car_Value,@DepreciationPeriod,@PremiumDepreciation)";
com = new MySqlCommand(qeury, dbconnection);
com.Parameters.Add("@Car_Number", MySqlDbType.VarChar, 255);
com.Parameters["@Car_Number"].Value = txtCarNumber.Text;
com.Parameters.Add("@Car_Capacity", MySqlDbType.Double);
com.Parameters["@Car_Capacity"].Value = Convert.ToDouble(txtCarCapacity.Text);
com.Parameters.Add("@meter_reading", MySqlDbType.Int32);
com.Parameters["@meter_reading"].Value = Convert.ToInt32(txtMeterReading.Text);
com.Parameters.Add("@Openning_Account", MySqlDbType.Double);
com.Parameters["@Openning_Account"].Value = Convert.ToDouble(txtOpenning_Account.Text);
com.Parameters.Add("@Car_Value", MySqlDbType.Double);
com.Parameters["@Car_Value"].Value = Convert.ToDouble(txtCarValue.Text);
com.Parameters.Add("@DepreciationPeriod", MySqlDbType.Double);
com.Parameters["@DepreciationPeriod"].Value = Convert.ToDouble(txtDepreciationPeriod.Text);
com.Parameters.Add("@PremiumDepreciation", MySqlDbType.Double);
com.Parameters["@PremiumDepreciation"].Value = Convert.ToDouble(txtPremiumDepreciation.Text);
com.ExecuteNonQuery();
MessageBox.Show("add success");
clear();
cars.DisplayCars();
}
else
{
MessageBox.Show("enter Car Number");
}
}
else
{
MessageBox.Show("This Car already exist");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
dbconnection.Close();
}
private void btnCarUpdate_Click(object sender, EventArgs e)
{
try
{
dbconnection.Open();
if (txtCarNumber.Text != "")
{
string qeury = "update cars set Car_Number=@Car_Number,Car_Capacity=@Car_Capacity,meter_reading=@meter_reading,Openning_Account=@Openning_Account,Car_Value=@Car_Value,DepreciationPeriod=@DepreciationPeriod,PremiumDepreciation=@PremiumDepreciation where Car_ID=" + row1["car_id"].ToString();
MySqlCommand com = new MySqlCommand(qeury, dbconnection);
com.Parameters.Add("@Car_Number", MySqlDbType.VarChar, 255);
com.Parameters["@Car_Number"].Value = txtCarNumber.Text;
com.Parameters.Add("@Car_Capacity", MySqlDbType.VarChar, 255);
com.Parameters["@Car_Capacity"].Value = txtCarCapacity.Text;
com.Parameters.Add("@meter_reading", MySqlDbType.Int32);
com.Parameters["@meter_reading"].Value = Convert.ToInt32(txtMeterReading.Text);
com.Parameters.Add("@Openning_Account", MySqlDbType.Double);
com.Parameters["@Openning_Account"].Value = Convert.ToDouble(txtOpenning_Account.Text);
com.Parameters.Add("@Car_Value", MySqlDbType.Double);
com.Parameters["@Car_Value"].Value = Convert.ToDouble(txtCarValue.Text);
com.Parameters.Add("@DepreciationPeriod", MySqlDbType.Double);
com.Parameters["@DepreciationPeriod"].Value = Convert.ToDouble(txtDepreciationPeriod.Text);
com.Parameters.Add("@PremiumDepreciation", MySqlDbType.Double);
com.Parameters["@PremiumDepreciation"].Value = Convert.ToDouble(txtPremiumDepreciation.Text);
com.ExecuteNonQuery();
cars.DisplayCars();
MessageBox.Show("update success");
}
else
{
MessageBox.Show("enter Car Number");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
dbconnection.Close();
}