nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Table of Contents - Legend Widget for FlexViewer 2.x

RobertScheitlin__GISP

All,

Here is the next in my line of widgets for the FlexViewer 2.x.

The legend portion of this widget is the same code as my dynamic legend widget so,

IT IS FOR ARCGIS SERVER 10 OR GREATER ONLY

This is just a simple TOC Widget that includes my dynamic legend component.
This widget also includes my enhancement for map service transparency,
right click context menu for zoom to make layer visible, and my scale
dependent renderer for the TOC checkboxes.

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TracySArchibald

Tracy,

The Service Description is only able to be set in ArcGIS Server Manager for published services. I am struggling to reproduce your issue with the layers Description and or Copyright. So far I have not been able to reproduce the none appearing metadata button.

One thing to remember is that every time you republish your map service it clears your map services description and you have to back into ArcGIS Service Manager and reset it.

Thanks for your help Robert, but I still can't seem to get it working... I've got a service with one layer in it and if I define the layer as:
<layer label="Rail - test" type="feature" visible="true" useamf="false" url="URL/ArcGISServer/rest/services/test_rail/MapServer/0"> </layer>
It works fine, but if I define it as (with or without the visiblelayers) :
<layer label="Rail - test" type="dynamic" visible="true" useamf="false" url="URL/ArcGISServer/rest/services/test_rail/MapServer" visiblelayers="0"> </layer>
I don't get a metadata button...

This webmap is still under development and I'm starting to think our contractor has broken something... 😞 If there's anything you can suggest, I'll happily try it!

RailMapservice.jpg

RailMapservice-0.jpg

RobertScheitlin__GISP

Tracy,

Last suggestion I have is to create a new mxd with this layer in it specify the desc. field, create the MSD and publish it to ArcGIS Server under a new name and test that new service.

CharlesHarris

Robert-

Did you ever get a change to look at the interaction between the TOC and the Thematic Query Widget?

Thanks,

Jeremy

JulianInskip

Hi Robert.

Thanks for the great widget. I am trying to add it into my customised version of the flex viewer (ver 2.2). I am using the API 2.4 and the Flex SDK 4.1 (just updated).

When I build my project, I get an error in the TocMapLayerItem.as file "1119: Access of possibly undefined property configData through a reference with static type com.esri.viewer:ViewerContainer" (see attached file).

Must it definitly use the flex viewer 2.4?

Any ideas why this is? Have I missed something.

Thanks.
Julian.

TocMapLayerItem_Error1119.jpg

RobertScheitlin__GISP

Julian,

Yes you must have Flex Viewer 2.4 as there are portions of the code that are dependent on 2.4 as you see with the error you are receiving.

ShaunWeston

Hi there,

How would you go about referencing a layer in this widget to check to see if it is selected or not?

I've got another widget and I want it to work only if a particular layer on this legend is checked.

RobertScheitlin__GISP

Shaun,

The checkbox in the TOC is controlled by the layers visibility and getting the layer from the map and checking it's visibility would be much less complicated than trying to get a reference to the TOC widget and looping though the TOC items to find the right one.

FaizanTayyab

Robert,

is there anyway to control/alter the legend swatch size?

RobertScheitlin__GISP

Faizan,

Depends on what version of server the data is coming from if it is pre 10 than the processRenderer function in the TocMapLayerItem.as controls it if the server is 10.01 or greater then you are really getting into an area where you can screw up the whole rendering and layout of the widget and I will not be giving guidance for that.

FaizanTayyab

Hi Robert,

Thanks for the reply.

On a different note, I am having issues with feature layers (global data). It some times fails on

else if (layer is FeatureLayer)
    {
     var FeatServId:Number = Number.NaN;
     var msName:String = FeatureLayer(layer).url.replace("FeatureServer","MapServer");
     var x:String = msName.substring(msName.length - 9);
     if(msName.substring(msName.length - 9) != "MapServer")
     {
      httpServ.url = msName.substring(0,msName.lastIndexOf("/")) + "/legend?f=json";
      FeatServId = parseInt(msName.substring(msName.lastIndexOf("/")+ 1));
     }else{
      httpServ.url = msName + "/legend?f=json";
     }
     //if(layer.layerDetails!=null){
      if(layer.layerDetails.version >= 10.01)      {
       httpServ.resultFormat = "text";
       lname = FeatureLayer(layer).id;
       httpServ.addEventListener(ResultEvent.RESULT,function(event:ResultEvent):void{processLegend(event,lname,FeatServId)});
       httpServ.send();
      } else {
       lname = FeatureLayer(layer).id;
       getFeatureResult(FeatureLayer(layer).layerDetails,lname);
      }
     //}
    }

I think because of number of features, it is unable to retrieve the layerDetails for the global feature layer. Is there any way, i can wait for the layerDetails to load before proceeding ensuring that the data is loaded in.

Thanks

RobertScheitlin__GISP

Faizan,

I don't know why you are having this issue because in the TocMapLayerItem.as there is the onLayerLoad function that wait for the layer to be fully loaded before any legend generation begins...

CharlesHarris

Robert-

I notice that when trying to use this map service http://maps3.arcgisonline.com/ArcGIS/rest/services/A-16/HHS_IOM_Health_Resources/MapServer with your TOC that the TOC is having a problem with the png picture marker symbols that are used at the county and city level. The TOC seems to be unable to draw the symbols and the "Generating TOC Legend" never stops spinning.

At one point I got the attached error message.

Do you have any ideas?

Thanks,

Jeremy

TOC_error.jpg

RobertScheitlin__GISP

Jeremy,

I thought that the picturemarkersymbol source was always coming back as a byteArray now and I guess if it is coming from a ArcGIS Server 10.0 it still comes as a url instead. Hang tight I will get it fixed.

RobertScheitlin__GISP

All,

There is a new version out that fixes the issue that Jeremy was having with PictureMarkerSymbols coming from a 10.0 Server. You can now download the fix in Version 2.4.4

CharlesHarris

Thanks Robert!

JamesKo

Is anyone else getting these warning messages?

warning: The class widgets.TOC.toc.tocClasses.LegendDataClassItem has been used in a call to net.registerClassAlias() in _TOCWidget_FlexInit. This will cause widgets.TOC:TOCWidget to be leaked. To resolve the leak, define widgets.TOC.toc.tocClasses.LegendDataClassItem in the top-level application.

warning: The class widgets.TOC.toc.tocClasses.LegendDataItem has been used in a call to net.registerClassAlias() in _TOCWidget_FlexInit. This will cause widgets.TOC:TOCWidget to be leaked. To resolve the leak, define widgets.TOC.toc.tocClasses.LegendDataItem in the top-level application.

warning: The class widgets.TOC.toc.tocClasses.LegendSymbolItem has been used in a call to net.registerClassAlias() in _TOCWidget_FlexInit. This will cause widgets.TOC:TOCWidget to be leaked. To resolve the leak, define widgets.TOC.toc.tocClasses.LegendSymbolItem in the top-level application.

RobertScheitlin__GISP

James,

What FLEX SDK are you building against. I have not seen this and I build this widget using the 4.1 SDK, but I have tried 4.5.1 too.

JamesKo

Hi Robert,

I'm using SDK 4.5.1 with Flash Builder 4.5 and FV 2.4.

RobertScheitlin__GISP

James,

Hmm... Only difference is I'm using Flash Builder 4.5.1.313231 (Use Help > About Flash Builder > Installation Details > Adobe Flash Builder Localized Top Feature)

JamesKo

Robert,

I'm using the exact same version...what exactly does this error message mean?

MauriciRuiz

Dear people,
Could you tell me how to compile the Widget ?

Thanks in advance
Maurici

DerrickMartin

Is there any way to control the sort order of the layers in the widget?

ShaunWeston

In the config.xml, is there a way to expand certain layers, but not others, rather than just expanding all or not expanding all using <expanded>false</expanded>

RobertScheitlin__GISP

Shaun,

No, it all or nothing.

GiosiaPoma

Hi Robert, great job.

In my app there are some symbol that appear big in the list of layer. There is a possibility to fix height and width of images in the code (example: 5x5 pixel)?

Thank you

RobertScheitlin__GISP

Giosia,

It would take a bit of work in several different places and several more places depending if the swatch is coming from a 10 server with SP1 or SP2. Not something I would want to recommend.

GiosiaPoma

Thank you Robert for the answer.
I didn't analyze not yet your code but I've supposed that you make a request by rest service /Legend and set the Image by transforming the imageData from rest. I use now sp1 of arcgis server.

I will apreciate if you give me suggestion for big image in toc (width and height).

Thank you

RobertScheitlin__GISP

Giosia,

I don't have a lot of time to spend on this so I'll just point you in the right direction Look in the TocMapLayerItem.as and find the loadImage function. That is where you can add code to control the image size (I have not tested any modifications like this so be sure you comment and know how to get the code back to the original state in case you break something).

GiosiaPoma

Hi Robert,
I've resolved the problem. I've setted in the loadImage in TocMapLayerItem.as in the loader complete function the image.maxHeight and maxWidht to 26 like your suggestion and it's all ok!
Thank you

function(e:Event):void
    {
     image.smoothBitmapContent = true;
     image.source = e.currentTarget.content;
     image.maxHeight = 26;
     image.maxWidth = 26;
    });

Giosia,

I don't have a lot of time to spend on this so I'll just point you in the right direction Look in the TocMapLayerItem.as and find the loadImage function. That is where you can add code to control the image size (I have not tested any modifications like this so be sure you comment and know how to get the code back to the original state in case you break something).

SaugatJoshi

Robert,

Is there a way we can extent the TOC's(FV 2.3.1) alpha slider to sublayer. For eg: in TOC if I have the layer name as Building and its sublayers as schools, hospital, etc The alpha slider is activated only when Building is clicked and disabled at other times. I can see the sublayer name as TocLayerInfoItem in dedbugger mode when I put a breakpoint at

private function setSelectedTreeItem(event:ListEvent):void
   {
    var item:TocItem = TocItem(event.itemRenderer.data);
    if (item is TocMapLayerItem){
     var item2:TocMapLayerItem = item as TocMapLayerItem;
     _sellayer = item2.layer;
     layerIsSelected = true;
     if(slider)
      slider.value = item2.layer.alpha;
    }else{
     layerIsSelected = false;
    }
   }

How can we control the transparency level of sublayers. Thanks.

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