What condition can I use to enable a button when a feature is selected?

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10-01-2020 11:03 AM
SarahPardikes
New Contributor II

I have added a custom button to my config.daml file.  I only want this button to be enabled when there is a feature selected on the map.  Is there a way to be even more specific and enable only when a feature from a certain layer has been selected?

I found this condition in the help files, but it enables the button when I select a layer in the Contents list:

condition="esri_mapping_onlyFeatureLayersSelectedCondition"

If there is not something already available, how would I create a condition to do this?

<button id="ModifyAttributesButton"
   caption="Modify Attributes"
   className="TestProject.Buttons.ModifyAttributesButton"
   loadOnClick="true"
   smallImage="Images\16x16\ModifyAttributes16.png"
   largeImage="Images\32x32\ModifyAttributes.png">
   <tooltip heading="Tooltip Heading">
      Modify project attributes<disabledText />
   </tooltip>
</button>

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SarahPardikes
New Contributor II

I solved this - maybe there is a better way, but this works:

In the Module code, Initialize method, I subscribe to the selection event:
ArcGIS.Desktop.Mapping.Events.MapSelectionChangedEvent.Subscribe(MapSelectionChanged);

Then I can check the selected features for a selection made to my layer and activate the condition:

private void MapSelectionChanged(MapSelectionChangedEventArgs obj)
{
   FrameworkApplication.State.Activate("condition_is_project_selected");
   foreach (var item in obj.Selection)
   {
      if (item.Key.ToString().Contains("Projects"))
      {
         FrameworkApplication.State.Deactivate("condition_is_project_selected");
         break;
      }
   }
}

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SarahPardikes
New Contributor II

I solved this - maybe there is a better way, but this works:

In the Module code, Initialize method, I subscribe to the selection event:
ArcGIS.Desktop.Mapping.Events.MapSelectionChangedEvent.Subscribe(MapSelectionChanged);

Then I can check the selected features for a selection made to my layer and activate the condition:

private void MapSelectionChanged(MapSelectionChangedEventArgs obj)
{
   FrameworkApplication.State.Activate("condition_is_project_selected");
   foreach (var item in obj.Selection)
   {
      if (item.Key.ToString().Contains("Projects"))
      {
         FrameworkApplication.State.Deactivate("condition_is_project_selected");
         break;
      }
   }
}

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