private void MenuExportSelected_Click(object sender, RoutedEventArgs e)
{
var selectedItems = OutputListbox.SelectedItems;
var saveFile = new SaveFileDialog();
saveFile.Filter = "Text file (*.txt)|*.txt";
saveFile.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
if (saveFile.ShowDialog() == true)
{
try
{
using (FileStream fs = File.Open(saveFile.FileName, FileMode.CreateNew))
{
using (StreamWriter sw = new StreamWriter(fs))
{
foreach (var item in selectedItems)
sw.WriteLine(item.ToString());
}
}
}
catch (Exception ex)
{
MessageBox.Show(
ex.ToString(),
"Failed to export",
MessageBoxButton.OK,
MessageBoxImage.Error);
}
OutputListbox.UnselectAll();
}
}
private void AppendLine(string line)
{
if (OutputListbox.Items.Count > 10000)
OutputListbox.Items.RemoveAt(0);
OutputListbox.Items.Add(line);
OutputListbox.SelectedIndex = OutputListbox.Items.Count - 1;
OutputListbox.ScrollIntoView(OutputListbox.SelectedItem);
OutputListbox.UnselectAll();
}