// Constructor
public Gui()
{
CenterToScreen();
InitializeComponent();
countriesBinding.DataSource = countryList;
listBoxAddCountry.DataSource = countriesBinding;
listBoxViewEstates.DataSource = estateManager.ToStringList();
}
// Button handler for open file button in menu
// Opens file with saved estates
private void mnuFileOpen_Click(object sender, EventArgs e)
{
string errorMessage = null;
openFileDialog1.Filter = ".dat |*.dat";
if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
estateManager.DeleteAll();
fileName = openFileDialog1.FileName;
try
{
if (!File.Exists(fileName))
{
errorMessage = $"The file {fileName} was not found. ";
throw (new FileNotFoundException(errorMessage));
}
estateManager = dataController.DeSerializeFile <EstateManager>(fileName);
ClearGuiFields();
listBoxViewEstates.DataSource = null;
listBoxViewEstates.DataSource = estateManager.ToStringList();
fileIsSaved = true;
id = estateManager.Count + 1;
}
catch (Exception ex)
{
if (errorMessage != null)
{
errorMessage = ex.ToString();
MessageBox.Show("Error opening file: " + errorMessage);
}
}
if (estateManager.Count > 0)
{
btnDelete.Enabled = true;
btnEdit.Enabled = true;
}
}
}
