Delete Features Object IDs

Permanently deleted user

01 Augusti 2012 04:13

is there are good way to provide the DeleteFeatures activity with the object_ids of the features selected?  I need some sample code that shows how to build a list or a collection of the objectids of the selected features.  maybe there is a sample out there.

J

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  Permanently deleted user

  01 Augusti 2012 04:31

  Hi Jeff

  try this:

  <Activity mc:Ignorable="sap" x:Class="{x:Null}" sap:VirtualizedContainerService.HintSize="392,1082" mva:VisualBasic.Settings="Assembly references and imported namespaces serialized as XML namespaces" xmlns="http://schemas.microsoft.com/netfx/2009/xaml/activities" xmlns:eac="clr-namespace:ESRI.ArcGIS.Client;assembly=ESRI.ArcGIS.Client" xmlns:eacg="clr-namespace:ESRI.ArcGIS.Client.Geometry;assembly=ESRI.ArcGIS.Client" xmlns:eact="clr-namespace:ESRI.ArcGIS.Client.Tasks;assembly=ESRI.ArcGIS.Client" xmlns:esri="http://schemas.esri.com/arcgis/client/2009" xmlns:gfc="clr-namespace:Geocortex.Forms.Client;assembly=Geocortex.EssentialsWpfApi" xmlns:gr="clr-namespace:Geocortex.Reporting;assembly=Geocortex.Reporting" xmlns:gwa="clr-namespace:Geocortex.Workflow.Activities;assembly=Geocortex.Workflow" xmlns:gwa1="clr-namespace:Geocortex.Workflow.Activities;assembly=Geocortex.Workflow.Activities" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:mva="clr-namespace:Microsoft.VisualBasic.Activities;assembly=System.Activities" xmlns:s="clr-namespace:System;assembly=System.Core" xmlns:s1="clr-namespace:System;assembly=System" xmlns:s2="clr-namespace:System;assembly=mscorlib" xmlns:sa="clr-namespace:System.Activities;assembly=System.Activities" xmlns:sap="http://schemas.microsoft.com/netfx/2009/xaml/activities/presentation" xmlns:scg="clr-namespace:System.Collections.Generic;assembly=mscorlib" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

   

    <Sequence sap:VirtualizedContainerService.HintSize="352,1042" mva:VisualBasic.Settings="Assembly references and imported namespaces serialized as XML namespaces">

   

      <Sequence.Variables>

   

        <Variable x:TypeArguments="scg:ICollection(x:Int32)" Name="collDelAddresses" />

   

        <Variable x:TypeArguments="esri:FeatureSet" Name="fsAddress" />

   

        <Variable x:TypeArguments="scg:IList(esri:EditResultItem)" Name="iListUpdateSucess" />

   

      </Sequence.Variables>

   

      <sap:WorkflowViewStateService.ViewState>

   

        <scg:Dictionary x:TypeArguments="x:String, x:Object">

   

          <x:Boolean x:Key="IsExpanded">True</x:Boolean>

   

        </scg:Dictionary>

   

      </sap:WorkflowViewStateService.ViewState>

   

      <gwa1:QueryTask sap:VirtualizedContainerService.HintSize="330,227" Results="[fsAddress]" SpatialRelationship="esriSpatialRelIntersects" />

   

      <gwa1:CreateCollection x:TypeArguments="x:Int32" sap:VirtualizedContainerService.HintSize="330,59" Result="[collDelAddresses]" />

   

      <ForEach x:TypeArguments="esri:Graphic" DisplayName="ForEach&lt;Graphic&gt;" sap:VirtualizedContainerService.HintSize="330,407" Values="[fsAddress.Features]">

   

        <ActivityAction x:TypeArguments="esri:Graphic">

   

          <ActivityAction.Argument>

   

            <DelegateInArgument x:TypeArguments="esri:Graphic" Name="item" />

   

          </ActivityAction.Argument>

   

          <Sequence sap:VirtualizedContainerService.HintSize="252,304">

   

            <sap:WorkflowViewStateService.ViewState>

   

              <scg:Dictionary x:TypeArguments="x:String, x:Object">

   

                <x:Boolean x:Key="IsExpanded">True</x:Boolean>

   

              </scg:Dictionary>

   

            </sap:WorkflowViewStateService.ViewState>

   

            <gwa1:CommentOut sap:VirtualizedContainerService.HintSize="225,118">

   

              <gwa1:Alert sap:VirtualizedContainerService.HintSize="211,82" Text="[CStr(item.Attributes(&quot;OBJECTID&quot;))]" Title="OBJECTID to be deleted" />

   

            </gwa1:CommentOut>

   

            <AddToCollection x:TypeArguments="x:Int32" Collection="[collDelAddresses]" sap:VirtualizedContainerService.HintSize="225,22" Item="[CInt(item.Attributes(&quot;OBJECTID&quot;))]" />

   

          </Sequence>

   

        </ActivityAction>

   

      </ForEach>

   

      <gwa1:DeleteFeatures FeatureLayerUrl="http://featureServiceUrl" sap:VirtualizedContainerService.HintSize="330,105" ObjectIDs="[collDelAddresses]" Results="[iListUpdateSucess]" />

   

    </Sequence>

   

  </Activity>

  You will need to do a little work but you should be able to get moving.

  Regards

  Ralph

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  Ryan Kelley

  01 Augusti 2012 05:02

  Ralph,

  U R da man! Thanks.

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  Permanently deleted user

  01 Augusti 2012 05:19

  Ralph--

  That's exactly what we were looking for.  with your help - up and going in a few minutes!!  now just wire in a few more variables and we are good to go!

  J

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  Ryan Cooney

  01 Augusti 2012 05:24

  FYI. The next Essentials release will contain a GetObjectIDs activity that accepts a FeatureSet and returns a list of integers.

  --Ryan

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  Jake Brown

  22 Mars 2016 15:40

  ...three years later...Ryan the GetObjectIDs returns a collection of objects and delete features requires a collection of integers.  

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  Ryan Cooney

  22 Mars 2016 16:49

  Hi Jake,

   

  The ObjectIDs property of a FeatureSet does return an IEnumerable<object>. This is part of Esri's API.

   

  The GetObjectIDs workflow activity returns an IList<int>.

   

  There is also a GetAttributeValues<T> activity that will work on any field of any type and provide a list.

   

  --Ryan

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