public MainWindow()
{
InitializeComponent();
manager = new ItemManager();
listViewItems.ListViewItemSorter = new LVIComparator();
filter = null;
filename = null;
ChangesSaved(true);
}
private void ClearAll()
{
balance = 0;
manager = new ItemManager();
filter = null;
filename = null;
ChangesSaved(false);
txtDescription.Text = "";
FilterLVI();
chart1.Visible = false;
toolStrip1.Items[5].Enabled = false; // edit
toolStrip1.Items[6].Enabled = false; // remove
}
private void OpenFileProcess()
{
DialogResult res = DialogResult.No;
if (!changesSaved) res = MessageBox.Show("All changes will bee lost, continue?", "Open file", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation);
if (res == DialogResult.Yes || changesSaved)
{
openFileDialog.InitialDirectory = Directory.GetCurrentDirectory();
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
ItemManager manBackup = manager;
ItemFilter filtBackup = filter;
bool savedBackup = changesSaved;
String fileBackup = filename;
ClearAll();
if (manager.LoadItems(openFileDialog.FileName))
{
filename = openFileDialog.FileName;
ChangesSaved(true);
}
else
{
MessageBox.Show("Wrong input file", "Wrong file", MessageBoxButtons.OK, MessageBoxIcon.Warning);
manager = manBackup;
filter = filtBackup;
if (filter != null) sStripFiltLab.Text = "Filter: active";
filename = fileBackup;
ChangesSaved(savedBackup);
}
ClearAndFillLVI();
FilterLVI();
}
}
}