topic Re: MapTip is not working. in ArcGIS API for Silverlight Questions

MapTip is not working.

ManojrajTeli — Thu, 17 Mar 2011 07:17:02 GMT

I have many layers in my project and one of the layer is "valve".Now i have created the maptip in my mxd also for individual valve layer and it works in mxd but in my silverlight application it doesn't work. I have tried the examples from Interactive SDE but it is not displaying anything even i tried to catch exception and tried showing in text-block but even text-block is also black.Thank in advance and please help.

Re: MapTip is not working.

DominiqueBroux — Thu, 17 Mar 2011 08:55:07 GMT

We would need more infos on what you did in order to help you.
Reminder just in case:

maptips are only working with GraphicsLayer and FeatureLayer (not working with ArcGISDynamicMapService layers)

the maptips you created in the mxd with arcmap are not used by the client API. You have to redefine them at the client side

Re: MapTip is not working.

ManojrajTeli — Thu, 17 Mar 2011 10:03:04 GMT

My valve layer is ArcGISDynamicMapServiceLayer.Is there any way to convert ArcGISDynamicMapServiceLayer into feature or graphics layer because i have created service of valve layer seperatelly and i am using it.Is there any work around please suggest .Thank you in advance.

Re: MapTip is not working.

DominiqueBroux — Sat, 11 Dec 2021 16:49:01 GMT

You can create your valves as graphics by adding a feature layer to your map.

Something like:

 
<esri:Map>
     <esri:FeatureLayer Url="<MyMapServiceURL>/<ValveLayerSubID>" />
...

Re: MapTip is not working.

JenniferNery — Thu, 17 Mar 2011 17:57:39 GMT

This also seems related to this thread: http://forums.arcgis.com/threads/25018-MapTips-widget-Vs-Graphic-MapTips-Vs-InfoWindow-(which-one-to-use-) Kindly see post#2 for some other options when using dynamic layer.

Re: MapTip is not working.

ManojrajTeli — Fri, 18 Mar 2011 04:51:39 GMT

I tried maptip and InfoWindow but not single thing is working it doesnot show any error also.Please help me out i need it urgently.thank you in advance.

Re: MapTip is not working.

ManojrajTeli — Fri, 18 Mar 2011 05:37:10 GMT

I took demo of maptip and i have put my local sevices and still its not working is it that my sevices are having some problem i am using arcgis 10.Please help me with this issue..Thank you in advance.
Error message"ESRI.ArcGis.Client.Task.service Exception object reference not set to an instance of an object."

Re: MapTip is not working.

ManojrajTeli — Fri, 18 Mar 2011 09:58:45 GMT

I have even tried this demo
http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#Identify
but it still failed can anyone help me out.

Re: MapTip is not working.

DominiqueBroux — Fri, 18 Mar 2011 10:26:49 GMT

I have even tried this demo
http://help.arcgis.com/en/webapi/sil...t.htm#Identify
but it still failed can anyone help me out.

Very difficult to guess what could be your issue:confused:.

What are you doing exactly? How does it fail?

Re: MapTip is not working.

ManojrajTeli — Sat, 19 Mar 2011 03:22:49 GMT

Asset maping for water supply department and i have many created many dynamic layers for valve,pipeline etc now i want whenever user mouse point at valve then it should show information in panel. Thats all i want please help me if possible.

Re: MapTip is not working.

JenniferNery — Mon, 21 Mar 2011 18:46:32 GMT

It sounds like you have tried SDK samples and was not successful showing map tip using your services. But it is unclear which sample and which error you are getting. Please share some code, error messages and maybe steps to reproduce.

Re: MapTip is not working.

ManojrajTeli — Tue, 22 Mar 2011 04:58:24 GMT

<Grid Grid.Row="2">
            <esri:Map x:Name="MyMap" ExtentChanged="MyMap_ExtentChanged">
            <esri:Map.Template>
                <ControlTemplate>
                    <Grid Background="{TemplateBinding Background}">
                        <Grid x:Name="RootElement" Width="Auto" Height="Auto" />
                        <Rectangle x:Name="ZoomBox" Fill="#55FFFFFF" Stroke="Green" StrokeThickness="2" Visibility="Collapsed" />
                        <StackPanel Orientation="Vertical" HorizontalAlignment="Left" VerticalAlignment="Bottom">
                            
                        </StackPanel>
                    </Grid>
                </ControlTemplate>
            </esri:Map.Template>
            <esri:Map.Layers>
                    
                    <esri:ArcGISDynamicMapServiceLayer ID="imagery" Url="http://gis1/ArcGIS/rest/services/Quick1532011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="sanguemboundry" Url="http://gis1/ArcGIS/rest/services/Sanguem_Boundry15-3-2011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="naturalfeatures" Url="http://gis1/ArcGIS/rest/services/Sanguem_Natural_Features15-3-2011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="building" Url="http://gis1/ArcGIS/rest/services/Sanguem_Building15-3-2011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="countour" Url="http://gis1/ArcGIS/rest/services/Sanguem_Contours15-3-2011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="waterbodies" Url="http://gis1/ArcGIS/rest/services/Sanguem_Water_Bodies15-3-2011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="roads" Url="http://gis1/ArcGIS/rest/services/Sanguem_Roads15-3-2011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="supplylines" Url="http://gis1/ArcGIS/rest/services/Sanguem_Supply_Lines15-3-2011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="pumpingstation" Url="http://gis1/ArcGIS/rest/services/Sanguem_Pumping_Station15-3-2011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="reservoirs" Url="http://gis1/ArcGIS/rest/services/Sanguem_Reservoirs15-3-2011/MapServer"/>
                    <esri:FeatureLayer ID="MyFeatureLayer" Url="http://gis1/ArcGIS/rest/services/Sanguem_Valve15-3-2011/MapServer/0" OutFields="objectid, size" Renderer="{StaticResource MySimpleRenderer}">
                    </esri:FeatureLayer>
                    <esri:ArcGISDynamicMapServiceLayer ID="valve" Url="http://gis1/ArcGIS/rest/services/Sanguem_Valve15-3-2011/MapServer"/>
                    <esri:ArcGISDynamicMapServiceLayer ID="annotation" Url="http://gis1/ArcGIS/rest/services/Sanguem_Annotation15-3-2011/MapServer"/>



                
                
                <esri:GraphicsLayer ID="MyGraphicsLayer"/>
                

            </esri:Map.Layers>
        </esri:Map>

<Canvas HorizontalAlignment="Left" VerticalAlignment="Top" >
            <esri:MapTip x:Name="MyMapTip" BorderBrush="#99000000"
                BorderThickness="1" Title="{Binding [STATE_NAME]}" VerticalOffset="10"
                HorizontalOffset="10" Background="#DDFFFFFF" />
        </Canvas>

and my c# code

void Layers_LayersInitialized(object sender, EventArgs args)
        {
            try
            {
                ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query()
                {
                    Geometry = MyMap.Extent,
                    OutSpatialReference = MyMap.SpatialReference
                };
                query.OutFields.Add("*");
                QueryTask querytask = new QueryTask("http://gis1/ArcGIS/rest/services/Sanguem_Supply_Lines15-3-2011/MapServer/2");
                querytask.ExecuteCompleted += QueryTask_ExecuteCompleted;
                querytask.ExecuteAsync(query);
            }
            catch (Exception ex)
            {
                MessageBox.Show("" + ex);
            }
        }

        private void QueryTask_ExecuteCompleted(object sender, ESRI.ArcGIS.Client.Tasks.QueryEventArgs args)
        {
            try
            {
                FeatureSet featureSet = args.FeatureSet;
                GraphicsLayer graphiclayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer;
                MyMapTip.GraphicsLayer = graphiclayer;
                if (featureSet != null && featureSet.Features.Count > 0)
                {
                    foreach (Graphic feature in featureSet.Features)
                    {
                        feature.Symbol = LayoutRoot.Resources["DefaultFillSymbol"] as Symbol;
                        graphiclayer.Graphics.Add(feature);
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("" + ex);
            }
        }

Re: MapTip is not working.

DominiqueBroux — Sat, 11 Dec 2021 16:49:04 GMT

You need to initialize the Where criteria of your query:

  query.OutFields.Add("*");
  query.ReturnGeometry = true;
  query.Where = "1=1";

Re: MapTip is not working.

ManojrajTeli — Mon, 28 Mar 2011 08:11:16 GMT

I tried adding those statements but still it failed displaying maptip but in QueryTask_ExecuteCompleted it is returning right number of feature count and fields but not maptip is not getting displayed.Thank you in advance.

Re: MapTip is not working.

DominiqueBroux — Mon, 28 Mar 2011 09:04:14 GMT

Do you see the features?

If not, check that your symbol fits with the geometry of your features. For example a FillSymbol can't symbolize line features, you need a LineSymbol.