Need to know how to sort a list or a dataitem list ?

Permanently deleted user

7. Dezember 2012 06:53

the list.sort() syntax doesn't seem to work in workflow and I cannot see any other functions that would sort a list of strings.  Would it be possible to use the vb script or c# script or possibly invoke method to sort a string list.  Of course, I would like a sample of the code  or method to do this.

J

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  Kevin Penner

  25. Januar 2013 02:09

  Hi Jeff,

  I ran across this post, and was curious myself so I gave it a try in this little workflow. Looks like you'll need to use the invoke method to make it work.

  -Kev

   

  <Activity mc:Ignorable="sap sads" x:Class="{x:Null}" sap:VirtualizedContainerService.HintSize="349,1752" 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:gce="clr-namespace:Geocortex.Core.Extensions;assembly=Geocortex.Core"  xmlns:gfc="clr-namespace:Geocortex.Forms.Client;assembly=Geocortex.EssentialsWpfApi"  xmlns:gfci="clr-namespace:Geocortex.Forms.Client.Items;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:sads="http://schemas.microsoft.com/netfx/2010/xaml/activities/debugger"  xmlns:sap="http://schemas.microsoft.com/netfx/2009/xaml/activities/presentation"  xmlns:scg="clr-namespace:System.Collections.Generic;assembly=System.Core"  xmlns:scg1="clr-namespace:System.Collections.Generic;assembly=System"  xmlns:scg2="clr-namespace:System.Collections.Generic;assembly=mscorlib"  xmlns:sl="clr-namespace:System.Linq;assembly=System.Core"  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">   <Sequence sap:VirtualizedContainerService.HintSize="309,1672" mva:VisualBasic.Settings="Assembly references and imported namespaces serialized as XML namespaces">     <Sequence.Variables>       <Variable x:TypeArguments="scg2:List(x:String)" Default="[New List(Of String)]" Name="stringList" />       <Variable x:TypeArguments="x:String" Name="sortedString" />       <Variable x:TypeArguments="x:String" Name="unsortedString" />     </Sequence.Variables>     <sap:WorkflowViewStateService.ViewState>       <scg2:Dictionary x:TypeArguments="x:String, x:Object">         <x:Boolean x:Key="IsExpanded">True</x:Boolean>       </scg2:Dictionary>     </sap:WorkflowViewStateService.ViewState>     <InvokeMethod sap:VirtualizedContainerService.HintSize="287,128" MethodName="Add">       <InvokeMethod.TargetObject>         <InArgument x:TypeArguments="scg2:List(x:String)">[stringList]</InArgument>       </InvokeMethod.TargetObject>       <InArgument x:TypeArguments="x:String">Z</InArgument>     </InvokeMethod>     <InvokeMethod sap:VirtualizedContainerService.HintSize="287,128" MethodName="Add">       <InvokeMethod.TargetObject>         <InArgument x:TypeArguments="scg2:List(x:String)">[stringList]</InArgument>       </InvokeMethod.TargetObject>       <InArgument x:TypeArguments="x:String">D</InArgument>     </InvokeMethod>     <InvokeMethod sap:VirtualizedContainerService.HintSize="287,128" MethodName="Add">       <InvokeMethod.TargetObject>         <InArgument x:TypeArguments="scg2:List(x:String)">[stringList]</InArgument>       </InvokeMethod.TargetObject>       <InArgument x:TypeArguments="x:String">A</InArgument>     </InvokeMethod>     <InvokeMethod sap:VirtualizedContainerService.HintSize="287,128" MethodName="Add">       <InvokeMethod.TargetObject>         <InArgument x:TypeArguments="scg2:List(x:String)">[stringList]</InArgument>       </InvokeMethod.TargetObject>       <InArgument x:TypeArguments="x:String">Y</InArgument>     </InvokeMethod>     <ForEach x:TypeArguments="x:String" DisplayName="ForEach&lt;String&gt;" sap:VirtualizedContainerService.HintSize="287,208" Values="[stringList]">       <ActivityAction x:TypeArguments="x:String">         <ActivityAction.Argument>           <DelegateInArgument x:TypeArguments="x:String" Name="item" />         </ActivityAction.Argument>         <Assign sap:VirtualizedContainerService.HintSize="242,60">           <Assign.To>             <OutArgument x:TypeArguments="x:String">[unsortedString]</OutArgument>           </Assign.To>           <Assign.Value>             <InArgument x:TypeArguments="x:String">[unsortedString + " " + item]</InArgument>           </Assign.Value>         </Assign>       </ActivityAction>     </ForEach>     <gwa1:Alert sap:VirtualizedContainerService.HintSize="287,86" Text="[unsortedString]" Title="Unsorted" />     <InvokeMethod sap:VirtualizedContainerService.HintSize="287,128" MethodName="Sort">       <InvokeMethod.TargetObject>         <InArgument x:TypeArguments="scg2:List(x:String)">[stringList]</InArgument>       </InvokeMethod.TargetObject>     </InvokeMethod>     <ForEach x:TypeArguments="x:String" DisplayName="ForEach&lt;String&gt;" sap:VirtualizedContainerService.HintSize="287,208" Values="[stringList]">       <ActivityAction x:TypeArguments="x:String">         <ActivityAction.Argument>           <DelegateInArgument x:TypeArguments="x:String" Name="item" />         </ActivityAction.Argument>         <Assign sap:VirtualizedContainerService.HintSize="242,60">           <Assign.To>             <OutArgument x:TypeArguments="x:String">[sortedString]</OutArgument>           </Assign.To>           <Assign.Value>             <InArgument x:TypeArguments="x:String">[sortedString + " " + item]</InArgument>           </Assign.Value>         </Assign>       </ActivityAction>     </ForEach>     <gwa1:Alert sap:VirtualizedContainerService.HintSize="287,86" Text="[sortedString]" Title="Sorted" />   </Sequence> </Activity>

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  Berend Veldkamp

  31. Januar 2013 17:44

  For a List(of String) you could use an assign activity (remember to add a reference to System.Linq):

  stringList = stringList.OrderBy(Function(value) value).ToList()

  And for a List(Of DataItem):

  dataItemList = dataItemList.OrderBy(Function(value) value.Display).ToList()

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