topic Re: Create Chart Symbol:MapTips in ArcGIS API for Silverlight Questions

Create Chart Symbol:MapTips

EricCreahi — Wed, 17 Apr 2013 16:10:36 GMT

Hi!
I try to create Chart symbol:MapTip.

simple code XAML without Code Behind.


 <!--Map Layers-->
            <esri:ArcGISTiledMapServiceLayer ID="BaseMap" Url="http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"/>

            <esri:FeatureLayer ID="quakes" Url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/2" >
                 <esri:FeatureLayer.OutFields>
                   <System:String>STATE_NAME</System:String>
                   <System:String>POP1990</System:String>
                 </esri:FeatureLayer.OutFields>
                
                <esri:FeatureLayer.MapTip>
                    <Grid>
                        <charting:Chart>
                                              
                        <charting:PieSeries  IndependentValueBinding="{Binding STATE_NAME}" DependentValueBinding="{Binding POP1990}" ItemsSource="{Binding Source={StaticResource MyChartStyle}}"  />
                        
                        </charting:Chart>
                    </Grid>
                </esri:FeatureLayer.MapTip>
                

            </esri:FeatureLayer>

It's working but no Pie .

Re: Create Chart Symbol:MapTips

DominiqueBroux — Thu, 18 Apr 2013 05:47:06 GMT

It's working but no Pie

In your code we don't see how is defined the staticresource used for initializing the itemssource of your pieseries.
But anyway there is no chance that a static binding works.
You have to bind to the current attributes of the underlying graphics. As there is no easy way to do it directly, you need a small piece of code suc as a converter..
This pie chart maptips sample demonstrates how to do that.

Re: Create Chart Symbol:MapTips

EricCreahi — Thu, 18 Apr 2013 10:06:10 GMT

Thanks for this simple sample