private void Async_PerformSearch(Object arg)
{
if (arg == null)
{
return;
}
var par = (SearchAsyncParam)arg;
// new request was added - this one is outdated
if (par.SequenceNumber < _requestSequenceNumber)
{
return;
}
if (SameAsPreviousSearch(par))
{
return;
}
SetStatus("Searching '" + par.Text + "' in " + par.Database, true);
var result = StudioController.Find(par.Srv, par.Database, par.Text, _cfg.LimitSearch);
// new request was added - this one is outdated
if (par.SequenceNumber < _requestSequenceNumber)
{
log.Info("Cancelled search request because new request was added. " + par.Text);
return;
}
SetStatus("Found " + result.Count + " objects");
InvokeInUI(() =>
{
log.Info("Updating UI items");
var analyzer = new PerformanceAnalyzer();
var items = ItemFactory.BuildFromEntries(result);
itemsControl.ItemsSource = items;
itemsControl.SelectedIndex = -1;
itemsControl.ScrollIntoView(itemsControl.SelectedItem);
if (items.Count == 0)
{
gridEmptyResult.Visibility = System.Windows.Visibility.Visible;
itemsControl.Visibility = System.Windows.Visibility.Collapsed;
}
else
{
gridEmptyResult.Visibility = System.Windows.Visibility.Collapsed;
itemsControl.Visibility = System.Windows.Visibility.Visible;
}
log.Performance("UI items updated", analyzer.Result);
analyzer.Stop();
});
if (result.Count == 0)
{
SetStatus("Found nothing. Try to refresh");
}
else if (result.Count == 1)
{
SetStatus("Found exactly one object");
}
else
{
SetStatus("Found " + result.Count + " objects ");
}
}