} // public Graphic newMark()
/// <summary>
/// Replace current marker by recreated Graphic.
/// Call from form event 'onSelectSymbol' or 'evtDrawComplete' or other 'ChangedMarkAttribs' events
/// </summary>
public void setSelectedSymbol()
{
if (currMark == null)
{
log("setSelectedSymbol, currMark is null");
return;
}
log("setSelectedSymbol, replace graphic");
marks.Remove(currMark);
currMark = null;
currMark = newMark();
marks.Add(currMark);
log("setSelectedSymbol, new mark added");
// refresh RL layer
var gl = getRLLayer();
gl.Graphics.Clear();
if (marks.Count <= 1) // reattach RLL for attributes table initialization
{
MapApplication.Current.Map.Layers.Remove(gl);
}
gl.Graphics = new GraphicCollection(marks);
addRLL2Map(gl);
} // public void setSelectedSymbol()
//Adding symbols from each entry read from the feed to the graphics object of the layer
private void wc_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
if (e.Error != null)
{
if (LoadFailed != null)
{
LoadFailed(this, new RssLoadFailedEventArgs()
{
ex = new Exception("Error in Reading the RSS feed. Try Again later!", e.Error),
UserState = e.UserState
});
}
return;
}
ESRI.ArcGIS.Client.GraphicCollection graphics = new ESRI.ArcGIS.Client.GraphicCollection();
using (Stream s = e.Result)
{
SyndicationFeed feed;
List <SyndicationItem> feedItems = new List <SyndicationItem>();
using (XmlReader reader = XmlReader.Create(s))
{
feed = SyndicationFeed.Load(reader);
foreach (SyndicationItem feedItem in feed.Items)
{
SyndicationElementExtensionCollection ec = feedItem.ElementExtensions;
string x = "";
string y = "";
foreach (SyndicationElementExtension ee in ec)
{
XmlReader xr = ee.GetReader();
switch (ee.OuterName)
{
case ("lat"):
{
y = xr.ReadElementContentAsString();
break;
}
case ("long"):
{
x = xr.ReadElementContentAsString();
break;
}
case ("point"):
{
string sp = xr.ReadElementContentAsString();
string[] sxsy = sp.Split(new char[] { ' ' });
x = sxsy[1];
y = sxsy[0];
break;
}
}
}
if (!string.IsNullOrEmpty(x))
{
Graphic graphic = new Graphic()
{
Geometry = new MapPoint(Convert.ToDouble(x), Convert.ToDouble(y))
};
graphic.Attributes.Add("Title", feedItem.Title.Text);
graphic.Attributes.Add("Summary", feedItem.Summary.Text);
graphic.Attributes.Add("PublishDate", feedItem.PublishDate);
graphic.Attributes.Add("Id", feedItem.Id);
graphics.Add(graphic);
}
}
}
}
//Invoking the initialize method of the base class to finish the initialization of the graphics layer:
if (LoadCompleted != null)
{
LoadCompleted(this, new RssLoadedEventArgs()
{
Graphics = graphics,
UserState = e.UserState
}
);
}
}