topic Access to MAP from ViewModel in ArcGIS API for Silverlight Questions

Access to MAP from ViewModel

AnatoliiTerentiev — Tue, 05 Nov 2013 10:20:00 GMT

Dear, Gurus!
I have next xaml:

        
<esri:Map x:Name="MyMap" >
            <esri:ArcGISDynamicMapServiceLayer 
                ID="Layers" 
                Url="http://myComp:6080/ArcGIS/rest/services/rkv_web/MapServer"/>
</esri:Map>

In ViewModel I have X,Y of point to pan to . How I can do some like that:

MyMap.PanTo(point);

That is how me to address to Mymap?

Re: Access to MAP from ViewModel

JohanCarlsson — Sat, 11 Dec 2021 14:55:44 GMT

ESRI.ArcGIS.Client.Geometry.MapPoint point = new ESRI.ArcGIS.Client.Geometry.MapPoint()
{
    X = x,
    Y = y,
    SpatialReference = MapApplication.Current.Map.SpatialReference.WKID
};
MapApplication.Current.Map.PanTo(point);

Re: Access to MAP from ViewModel

DenisT — Tue, 19 Nov 2013 11:27:43 GMT

The other approach is to have an event in VM and a behavior (for example) for a Map. Maybe weak event if you want to reuse your VMs and avoid memory leaks.
Makes sense if you decide to keep your VM layer clean from UI and platform-specific assemblies like ESRI.ArcGIS.Client.
It could be a painful approach in some cases.