jmunsters

Tiled Layers Not Displaying As Expected

Discussion created by jmunsters on Dec 12, 2011
You'll have to forgive my inexperience here, both with the forums and ESRI products in general.  I am hoping this post lands in the correct forum.  That said...

Working with the Silverlight API, I am utilizing two specific layers I've displayed below as test code.  I have a 'basemap' layer and an 'overlay' layer.  The later I plan on allowing for a dynamic transparency through a control targeting the opacity property.

When I set up the layers in the simple XAML example as listed below, I notice in Fiddler both the basemap and the overlay layer get their json, but tiles for the later declared are not returned. 

        <esri:Map x:Name="MyMap" SnapToLevels="True" Background="White" Extent="12589861.5047889, 452193.576650939, 12776710.8368209, 634919.636547503" >
            <esri:ArcGISTiledMapServiceLayer ID="layerBase" Url="http://www.gis.co.ottawa.mi.us/GISWEB/rest/services/BaseLayerGrey/MapServer" />
            <esri:ArcGISTiledMapServiceLayer ID="layerHillshade" Opacity=".50" Url="http://www.gis.co.ottawa.mi.us/GISWEB/rest/services/SL_HillShade/MapServer"/>
        </esri:Map>


When I reverse the order of the layers in the XAML (overlay first) I notice the basemap makes the json call, but returns no tiles.

    <esri:Map x:Name="MyMap" SnapToLevels="True" Background="White" Extent="12589861.5047889, 452193.576650939, 12776710.8368209, 634919.636547503" >
        <esri:ArcGISTiledMapServiceLayer ID="layerHillshade" Opacity=".50" Url="http://www.gis.co.ottawa.mi.us/GISWEB/rest/services/SL_HillShade/MapServer"/>
        <esri:ArcGISTiledMapServiceLayer ID="layerBase" Url="http://www.gis.co.ottawa.mi.us/GISWEB/rest/services/BaseLayerGrey/MapServer" />
    </esri:Map>


Both layers will work properly independently of the other, but fail to display properly when combined.  I was curious how I should debug this further or if there is just a simple answer to this.  Thanks to all that respond in advance.

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