Create a multipart polyline.

CraigGallant

Hello All,

I???m trying to create a multipart polyline and I am having trouble with it adding connection lines when I add it to the feature layer. I start by adding the line graphic to a PointCollection.


ObservableCollection<PointCollection> lpc = new ObservableCollection<PointCollection>();

PointCollection PC = new PointCollection();



void LineDrawingSurface_DrawComplete(object sender, DrawEventArgs e)
{
         GraphicsLayer linegraphicsLayer = MyMap.Layers["LineDrawGraphicsLayer"] as GraphicsLayer;

         ESRI.ArcGIS.Client.Graphic graphic = new ESRI.ArcGIS.Client.Graphic()
         {
                Geometry = e.Geometry,
                Symbol = MyLineSymbol
         };

        linegraphicsLayer.Graphics.Add(graphic);


        Polyline PL = graphic.Geometry as Polyline;
                                  
           
        for (int i = 0; i < PL.Paths.Count; i++)
        {
                foreach (var mp in PL.Paths)
                {
                    PC.Add(mp);
                }
        }

                       
        lpc.Add(PC);

}


Next I draw two lines on the graphic layer. This shows two separate graphics like I want. Now when I???m done and press the save button I create a polyline and set it to the pointcollection. Then I create a graphic and set is geometry to the polyline. Finally I add the graphic to the featurelayer and save edits.



private void btnSave2_Click(object sender, RoutedEventArgs e)
{
         GraphicsLayer linegraphicsLayer = MyMap.Layers["LineDrawGraphicsLayer"] as GraphicsLayer;
         linegraphicsLayer.ClearGraphics();

         Polyline pl = new Polyline();
         pl.Paths = lpc;
         pl.SpatialReference = MyMap.SpatialReference;
 
         Graphic graph = new Graphic();
         graph.Geometry = pl;

         FeatureLayer fLayer = MyMap.Layers["FeatureLayer"] as FeatureLayer;

         fLayer.Graphics.Add(graph);

         fLayer.EndSaveEdits += Insert_EndSaveEdits;
          fLayer.SaveEdits();

}





Now this all works fine but the problem is the polyline is one continuous line and not two separate lines as a multipart record as originally draw on the graphic layer. I have attached a image of what it is doing.

So how can get it to skip the line in the middle when I???m writing the record?

Thanks,
Craig

Polyline.jpg

Capture.jpg

StevenTemmermand_4-1642114981997.jpeg

CraigGallant

Thank you,

This is the line of code I needed.

"polyline.Paths.Add((e.Geometry as Polyline).Paths[0]);"



Craig