How to get reference of ActivityContext object?

Permanently deleted user

15 Januari 2018 10:44

I am developing .NET custom activity. How can i get ActivityContext object from CodeActivityContext object?

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  Permanently deleted user

  16 Januari 2018 11:47

  Hi Ramesh,

   

  Not sure that I’m understanding your question…

   

  I suppose you have a class like below. Your custom activity should define some Input and outputs arguments.

   

  The execute method should have a parameter of type CodeActivityContext let’s say called ‘context’

   

  So with context.GetValue(this.SchemeYear) you should be able to obtain one by one values from your CodeActivityContext parameter.

   

  Similar thing to set output parameter: context.SetValue(Result, true); 

   

  See code below that summarize the full class

   

  I hope that’s what are you looking for. If not please send more details. namespace Namespace.CustomActivities { public sealed class getYear : CodeActivity { // Inputs public InArgument<int> SchemeYear { get; set; } // Outputs public OutArgument<bool> Result { get; set; } protected override void Execute(CodeActivityContext context) { if (context == null) { DardLogger.Error("Provided Context is null"); throw new ArgumentNullException("context"); } var schemeYear = context.GetValue(this.SchemeYear); context.SetValue(Result, true); } } }

   

   

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  Permanently deleted user

  16 Januari 2018 12:19

  Hi (https://support.geocortex.com/GSCProfile?communityId=09a6000000008Qu&userId=005600000054tZA&showHeader=false) Francesca ,

   

  I am looking to get Geocortex.Workflow.Client.ActivityContext object in Execute method to work with methods like ActivityContext . GetEsriMap, ActivityContext . GetSite. Is it possible to get Map & Site objects in Custom Activity as shown below?

   

    protected override void Execute(CodeActivityContext context)

   

  {

   

        Geocortex.Workflow.Client. ActivityContext objActivityContext =           (Geocortex.Workflow.Client. ActivityContext)context;             Esri.ArcGISRuntime.Controls.Map objMap= objActivityContext. GetEsriMap();

   

        }

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  Permanently deleted user

  17 Januari 2018 14:01

  Hi Ramesh,

   

  I didn’t have that scenario yet.

   

  I think it depends on what you need to do with Esri.ArcGISRuntime.Controls.Map. If you need to perform actions on the map then probably you need to use a client side custom activity (javascript). If you need a value from the map possibly you can pass values as input parameter. If you need a method/object in the map library you could possibly reference the dll in your project…. But unfortunately I don’t have any working examples.

   

  Let us know use and how you are resolving this.

   

   

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  Permanently deleted user

  18 Januari 2018 04:10

  Hi Francesca,

   

  I want to show schematics view dynamically (generated by user) on map. Can you suggest a possible way of doing this?

   

   

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  Permanently deleted user

  05 April 2018 22:29

  Hi Ramesh,

   

  The .NET side of workflow does not have direct access to the Map or Site objects.  These objects belong to the client (viewer) and thus we us a client activity to get any sort of interactive information about the viewer.

   

  To show some arbitrary geometries on the map we would recommend the Update Graphics Layer activity, which does not require custom code and can send geometry and a renderer to the viewer for visualization.

   

  Regards,

   

  -Malcolm

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