private void btnAddCharter_Click(object sender, EventArgs e)
{
//validate customer name input data
if (txtCustomer.Text == string.Empty)
{
MessageBox.Show("Enter Customer Name", "Missing Input", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
//vaidate yacht type input data
if (cboYachtType.SelectedItem == null)
{
MessageBox.Show("Select a yacht type", "Missing input", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
//validate yacht size input data
if (lboxYachtSize.SelectedItem == null)
{
MessageBox.Show("Select a yacht size", "Missing input", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
//declare method level variables and assign values
string customerName = txtCustomer.Text;
string yachtType = cboYachtType.SelectedItem.ToString();
int yachtSize = Convert.ToInt32(lboxYachtSize.SelectedItem);
decimal hoursChartered = Convert.ToDecimal(nudHours.Value);
Charter aCharter = new Charter(customerName, yachtType, yachtSize, hoursChartered);
//instantiates a YatchManager object(one time only; when the first charter is added)
if (aCharterManager == null)
{
aCharterManager = new CharterManager();
}
//calls the appropriate method on the YachtManager object to add the charter
aCharterManager.AddCharter(customerName, yachtType, yachtSize, hoursChartered);
//enables the three menu items within the Display menu
allChartersToolStripMenuItem.Enabled = true;
numberOfChartersForYachtSIzeToolStripMenuItem.Enabled = true;
chartersSummaryToolStripMenuItem.Enabled = true;
//disables tools
btnAddCharter.Enabled = false;
txtCustomer.Enabled = false;
nudHours.Enabled = false;
lboxYachtSize.Enabled = false;
cboYachtType.Text = null;
}
//a method to a) instantiate a Charter object and add it to the List <Charter> collection
public void AddCharter(string customerName, string yachtType, int yachtSize, decimal hoursChartered)
{
Charter aCharter = new Charter(customerName, yachtType, yachtSize, hoursChartered);
CharterList.Add(aCharter);
}