topic Re: IsInScaleRange not working in Legend in ArcGIS API for Silverlight Questions

IsInScaleRange not working in Legend

AlekseyShulga — Sun, 12 Dec 2021 16:12:43 GMT

Hi,
I found a weird bug. I use a simple example:

<esri:Map x:Name="MyMap"  WrapAround="True">
    <esri:ArcGISDynamicMapServiceLayer Url="http://myserver/arcgis/rest/services/objects/MapServer" />
</esri:Map>

<esri:Legend Map="{Binding ElementName=MyMap}" LayerItemsMode="Tree" ShowOnlyVisibleLayers="False" >
    <esri:Legend.MapLayerTemplate>
        <DataTemplate>
            <StackPanel Orientation="Horizontal">
                <CheckBox Content="{Binding Label}" IsChecked="{Binding IsEnabled, Mode=TwoWay}" 
                                IsEnabled="{Binding IsInScaleRange}" >
                </CheckBox>
            </StackPanel>
        </DataTemplate>
    </esri:Legend.MapLayerTemplate>
    <esri:Legend.LayerTemplate>
        <DataTemplate>
            <CheckBox Content="{Binding Label}" IsChecked="{Binding IsEnabled, Mode=TwoWay}" 
                            IsEnabled="{Binding IsInScaleRange}" >
            </CheckBox>
        </DataTemplate>
    </esri:Legend.LayerTemplate>
</esri:Legend>

It's ok. IsEnabled="{Binding IsInScaleRange}" works.
I add ArcGISTiledMapServiceLayer in the map before my ArcGISDynamicMapServiceLayer, I get:
- if ArcGISTiledMapServiceLayer is a tiled map service, IsInScaleRange works
- if ArcGISTiledMapServiceLayer is a image service, IsInScaleRange NOT works

<esri:ArcGISTiledMapServiceLayer ShowLegend="False" Url="http://myserver/arcgis/rest/services/base/MapServer" />
<esri:ArcGISTiledMapServiceLayer ShowLegend="False" Url="http://myserver/arcgis/rest/services/ortho/ImageServer" />

I don't want to use ArcGISImageServiceLayer for the ImageServer, because ArcGISImageServiceLayer displayed very slowly. Why is it not working?
PS: This example works fine on JavaScript, but not work on SL.

Re: IsInScaleRange not working in Legend

DominiqueBroux — Mon, 13 May 2013 06:41:54 GMT

Could you share the URL of the non working service?

Thanks

Re: IsInScaleRange not working in Legend

AlekseyShulga — Mon, 13 May 2013 07:04:56 GMT

Ok. But I need some time to prepare test services and publish them for you. My services now is private.

Re: IsInScaleRange not working in Legend

AlekseyShulga — Wed, 15 May 2013 08:40:30 GMT

Hi,
Map Service: http://93.170.14.50:6080/arcgis/rest/services/map/MapServer
Image Service: http://93.170.14.50:6080/arcgis/rest/services/mosaic/ImageServer

Re: IsInScaleRange not working in Legend

DominiqueBroux — Fri, 17 May 2013 08:42:13 GMT

I eventually reproduced the issue.

We'll try to get it fixed in a future version.

Meanwhile, the workaround may be to set the Layer minimum and MaximumResolution accordinly with the min and max scale defined at server side.

Thanks for reporting that.

Re: IsInScaleRange not working in Legend

AlekseyShulga — Mon, 20 May 2013 03:19:09 GMT

Thanks.
When the expected release of a new version?

Re: IsInScaleRange not working in Legend

AlekseyShulga — Mon, 09 Dec 2013 03:40:59 GMT

Ver 3.2 nothing changed... 😞

Re: IsInScaleRange not working in Legend

DominiqueBroux — Mon, 09 Dec 2013 13:15:26 GMT

Ver 3.2 nothing changed... 😞

The issue is supposed to be fixed with version 3.2.
Do you mean that you still run into the issue after migrating to 3.2?

Re: IsInScaleRange not working in Legend

AlekseyShulga — Tue, 10 Dec 2013 02:13:15 GMT

Hi, dbroux.

After migration to 3.2 IsInScaleRange work fine for map-layers in WGS84, but if I use custom spatial reference this bug still exists. Now I'm experimenting to confirm this.
I'll tell the result later.

Re: IsInScaleRange not working in Legend

AlekseyShulga — Tue, 14 Jan 2014 06:00:38 GMT

Confirmation.
IsInScaleRange changing, if I use spatial reference WKID=102100 (wgs84 web mercator). For custom SR IsInScaleRange not work.

Re: IsInScaleRange not working in Legend

deleted-user-Jie3eyjOl9XM — Tue, 19 Aug 2014 22:49:52 GMT

Dominique Broux‌

This issue sounds similar to something that we've been dealing with. The map scales are different by a very small decimal number, and so we have layers that disappear when they are at the maximum zoom (not beyond). Could be causing IsInScaleRange to go wrong, too.

3.2 And ArcGISTiledMapServiceLayer&nbsp; MinimumResolution Property‌

Custom base map minimum scale fails to load in version 3.2‌

Re: IsInScaleRange not working in Legend

AlekseyShulga — Mon, 29 Sep 2014 06:43:24 GMT

Hi, Yes!!!

If I use ArcGISTiledMapServiceLayer in Map, IsInScaleRange not work on layers in another ArcGISDynamicMapServiceLayer. If I not use ArcGISTiledMapServiceLayer all good.