WPF ProgressBar for Webservice Call

Question

Is it possible to show a ProgressBar to show the Progress of a Webservice Call? I'm using a webservice which calls a SQL Database and returns, on demand, a List of the requested data.

Webservice Code

    public List<LocationUpdate> GetAllLocationsByUserID(int UserID)
    {
        MainframeConnectionDataContext db = new MainframeConnectionDataContext();
        var validLocations = from query in db.LocationUpdates select query;
        return validLocations.ToList();
    }

Client Code

    void Window1_Loaded(object sender, RoutedEventArgs e)
    {
        dg_sql_data.ItemsSource = CMainFrameConnection.GetAllLocationsByUserID(0);
    }

Currently it takes about 5-10 Seconds before the Data is loaded.

Any Ideas?

• rAyt

Answer 1

A progress bar might not be appropriate here as you presumably can't tell how far through the operation is. It might be more appropriate to display a 'loading' animation of some kind.

e.g. some example animations you could use here http://www.ajaxload.info/

EDIT: As Dreas points out, setting IsIndeterminate is a good way to handle this.