//============================================================
// ICOMPARABLE IMPLEMENTATION
//============================================================
#region CompareTo(object obj)
/// <summary>
/// Compares the current instance with another object of the same type.
/// </summary>
/// <param name="obj">An object to compare with this instance.</param>
/// <returns>A 32-bit signed integer that indicates the relative order of the objects being compared.</returns>
/// <exception cref="ArgumentException">The <paramref name="obj"/> is not the expected <see cref="Type"/>.</exception>
public int CompareTo(object obj)
{
//------------------------------------------------------------
// If target is a null reference, instance is greater
//------------------------------------------------------------
if (obj == null)
{
return(1);
}
//------------------------------------------------------------
// Determine comparison result using property state of objects
//------------------------------------------------------------
SyndicationResourceLoadedEventArgs value = obj as SyndicationResourceLoadedEventArgs;
if (value != null)
{
int result = 0;
result = result | String.Compare(this.Data.OuterXml, value.Data.OuterXml, StringComparison.OrdinalIgnoreCase);
result = result | Uri.Compare(this.Source, value.Source, UriComponents.AbsoluteUri, UriFormat.SafeUnescaped, StringComparison.OrdinalIgnoreCase);
return(result);
}
else
{
throw new ArgumentException(String.Format(null, "obj is not of type {0}, type was found to be '{1}'.", this.GetType().FullName, obj.GetType().FullName), "obj");
}
}
/// <summary>
/// Loads the syndication resource using the specified <see cref="XPathNavigator"/> and <see cref="SyndicationResourceLoadSettings"/>.
/// </summary>
/// <param name="navigator">A read-only <see cref="XPathNavigator"/> object for navigating through the syndication resource information.</param>
/// <param name="settings">The <see cref="SyndicationResourceLoadSettings"/> object used to configure the load operation of the <see cref="AtomFeed"/>.</param>
/// <param name="eventData">A <see cref="SyndicationResourceLoadedEventArgs"/> that contains the event data used when raising the <see cref="AtomFeed.Loaded"/> event.</param>
/// <remarks>
/// After the load operation has successfully completed, the <see cref="AtomFeed.Loaded"/> event is raised using the specified <paramref name="eventData"/>.
/// </remarks>
/// <exception cref="ArgumentNullException">The <paramref name="navigator"/> is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="ArgumentNullException">The <paramref name="settings"/> is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="ArgumentNullException">The <paramref name="eventData"/> is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="FormatException">The <paramref name="navigator"/> data does not conform to the expected syndication content format. In this case, the feed remains empty.</exception>
private void Load(XPathNavigator navigator, SyndicationResourceLoadSettings settings, SyndicationResourceLoadedEventArgs eventData)
{
//------------------------------------------------------------
// Validate parameters
//------------------------------------------------------------
Guard.ArgumentNotNull(navigator, "navigator");
Guard.ArgumentNotNull(settings, "settings");
Guard.ArgumentNotNull(eventData, "eventData");
//------------------------------------------------------------
// Load syndication resource using the framework adapters
//------------------------------------------------------------
SyndicationResourceAdapter adapter = new SyndicationResourceAdapter(navigator, settings);
adapter.Fill(this, SyndicationContentFormat.Atom);
//------------------------------------------------------------
// Raise Loaded event to notify registered handlers of state change
//------------------------------------------------------------
this.OnFeedLoaded(eventData);
}
/// <summary>
/// Raises the <see cref="AtomFeed.Loaded"/> event.
/// </summary>
/// <param name="e">A <see cref="SyndicationResourceLoadedEventArgs"/> that contains the event data.</param>
protected virtual void OnFeedLoaded(SyndicationResourceLoadedEventArgs e)
{
//------------------------------------------------------------
// Local members
//------------------------------------------------------------
EventHandler<SyndicationResourceLoadedEventArgs> handler = null;
//------------------------------------------------------------
// Raise event on registered handler(s)
//------------------------------------------------------------
handler = this.Loaded;
if (handler != null)
{
handler(this, e);
}
}
