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    <title>topic Problem with Programatically Updating TOC visibility in ArcGIS Viewer for Flex Questions</title>
    <link>https://community.esri.com/t5/arcgis-viewer-for-flex-questions/problem-with-programatically-updating-toc/m-p/593955#M17008</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;I am basically following steps from this forum topic:&lt;/SPAN&gt;&lt;A href="http://forums.arcgis.com/threads/20965-LiveMapsWidget-doesn-t-follow-changes" rel="nofollow noopener noreferrer" target="_blank"&gt;http://forums.arcgis.com/threads/20965-LiveMapsWidget-doesn-t-follow-changes&lt;/A&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;I changed TocItem.as (in both Robert's TOC Widget directory, and in src\components\tocClasses) as follows:&lt;/SPAN&gt;&lt;PRE class="lia-code-sample line-numbers language-none"&gt;public class TocItem extends EventDispatcher
{
&amp;nbsp;&amp;nbsp;&amp;nbsp; public function TocItem(parentItem:TocItem = null)
&amp;nbsp;&amp;nbsp;&amp;nbsp; {
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; _parent = parentItem;
&amp;nbsp; ViewerContainer.addEventListener(AppEvent.PROGRAMATIC_LAYER_VISIBILITY_CHANGED, updateCheckBox);
&amp;nbsp;&amp;nbsp;&amp;nbsp; }
 private function updateCheckBox(event:AppEvent):void
 {
&amp;nbsp; if(this is TocLayerInfoItem)
&amp;nbsp; {
&amp;nbsp;&amp;nbsp; var tli:TocLayerInfoItem = this as TocLayerInfoItem;
&amp;nbsp;&amp;nbsp; if(tli.layerInfo.name == event.data){
&amp;nbsp;&amp;nbsp;&amp;nbsp; //setVisibleDirect(true);
&amp;nbsp;&amp;nbsp;&amp;nbsp; setVisible(_visible ? false : true, true)
&amp;nbsp;&amp;nbsp; }
&amp;nbsp; }
 }&lt;/PRE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Entered Public static const in AppEvent.as:&lt;/SPAN&gt;&lt;PRE class="lia-code-sample line-numbers language-none"&gt;public static const PROGRAMATIC_LAYER_VISIBILITY_CHANGED:String = "programicLayerVisibilityChanged";&lt;/PRE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Finally, called it in a widget as follows:&lt;/SPAN&gt;&lt;PRE class="lia-code-sample line-numbers language-none"&gt;private function test1(evt:Event):void
&amp;nbsp;&amp;nbsp; {
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; ViewerContainer.dispatchEvent(new AppEvent(AppEvent.PROGRAMATIC_LAYER_VISIBILITY_CHANGED, "Students"));
&amp;nbsp;&amp;nbsp; }&lt;/PRE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;The end result is that the TOC layer is not updated from visible=false to visible=true. I must be missing a step, or perhaps something changed in a version update?&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Thanks,&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;Jim Faron&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;Austin Independent School District&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Sun, 12 Dec 2021 01:30:48 GMT</pubDate>
    <dc:creator>JamesFaron</dc:creator>
    <dc:date>2021-12-12T01:30:48Z</dc:date>
    <item>
      <title>Problem with Programatically Updating TOC visibility</title>
      <link>https://community.esri.com/t5/arcgis-viewer-for-flex-questions/problem-with-programatically-updating-toc/m-p/593955#M17008</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;I am basically following steps from this forum topic:&lt;/SPAN&gt;&lt;A href="http://forums.arcgis.com/threads/20965-LiveMapsWidget-doesn-t-follow-changes" rel="nofollow noopener noreferrer" target="_blank"&gt;http://forums.arcgis.com/threads/20965-LiveMapsWidget-doesn-t-follow-changes&lt;/A&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;I changed TocItem.as (in both Robert's TOC Widget directory, and in src\components\tocClasses) as follows:&lt;/SPAN&gt;&lt;PRE class="lia-code-sample line-numbers language-none"&gt;public class TocItem extends EventDispatcher
{
&amp;nbsp;&amp;nbsp;&amp;nbsp; public function TocItem(parentItem:TocItem = null)
&amp;nbsp;&amp;nbsp;&amp;nbsp; {
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; _parent = parentItem;
&amp;nbsp; ViewerContainer.addEventListener(AppEvent.PROGRAMATIC_LAYER_VISIBILITY_CHANGED, updateCheckBox);
&amp;nbsp;&amp;nbsp;&amp;nbsp; }
 private function updateCheckBox(event:AppEvent):void
 {
&amp;nbsp; if(this is TocLayerInfoItem)
&amp;nbsp; {
&amp;nbsp;&amp;nbsp; var tli:TocLayerInfoItem = this as TocLayerInfoItem;
&amp;nbsp;&amp;nbsp; if(tli.layerInfo.name == event.data){
&amp;nbsp;&amp;nbsp;&amp;nbsp; //setVisibleDirect(true);
&amp;nbsp;&amp;nbsp;&amp;nbsp; setVisible(_visible ? false : true, true)
&amp;nbsp;&amp;nbsp; }
&amp;nbsp; }
 }&lt;/PRE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Entered Public static const in AppEvent.as:&lt;/SPAN&gt;&lt;PRE class="lia-code-sample line-numbers language-none"&gt;public static const PROGRAMATIC_LAYER_VISIBILITY_CHANGED:String = "programicLayerVisibilityChanged";&lt;/PRE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Finally, called it in a widget as follows:&lt;/SPAN&gt;&lt;PRE class="lia-code-sample line-numbers language-none"&gt;private function test1(evt:Event):void
&amp;nbsp;&amp;nbsp; {
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; ViewerContainer.dispatchEvent(new AppEvent(AppEvent.PROGRAMATIC_LAYER_VISIBILITY_CHANGED, "Students"));
&amp;nbsp;&amp;nbsp; }&lt;/PRE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;The end result is that the TOC layer is not updated from visible=false to visible=true. I must be missing a step, or perhaps something changed in a version update?&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Thanks,&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;Jim Faron&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;Austin Independent School District&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Sun, 12 Dec 2021 01:30:48 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-viewer-for-flex-questions/problem-with-programatically-updating-toc/m-p/593955#M17008</guid>
      <dc:creator>JamesFaron</dc:creator>
      <dc:date>2021-12-12T01:30:48Z</dc:date>
    </item>
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