private void btnSessionImportStart_Click(object sender, EventArgs e)
{
// Validate the session filename.
blockSubmitIfValidationFails = true;
try
{
txtSessionFileName.Focus();
if (!Validate())
{
return;
}
}
finally
{
blockSubmitIfValidationFails = false;
}
// Do UI changes, e.g. hide Start button, show Stop button, start progress bar.
btnSessionImportStart.Visible = false;
btnSessionImportStop.Visible = true;
progressBar.Value = 0;
progressBar.Visible = true;
// Start importer in another thread.
sessionImporter = new SessionImporter(txtSessionFileName.Text);
sessionImporter.Completed += new CompletedEventHandler(SessionImportFinished);
sessionImporter.ProgressChanged += new ProgressChangedEventHandler(ProgressChanged);
ThreadPool.QueueUserWorkItem(new WaitCallback(sessionImporter.Import));
}
/// <summary>
/// Event handler that gets called when the session import is finished.
/// </summary>
private void SessionImportFinished(object sender, CompletedEventArgs args)
{
ImportResult result = args.Result;
sessionImporter = null;
Invoke((Action)(() =>
{
btnSessionImportStart.Visible = true;
btnSessionImportStop.Visible = false;
progressBar.Visible = false;
ImportResultsPopup popup = new ImportResultsPopup(result);
popup.ShowDialog();
}));
}