Change Field Set to Workflow Activity

I guess I should have come back to this and post the C# method I use.  I have this assigned to the Activities of the Workflow Template with an On Activate event.

// Called OnActivate from activities in a change workflow.  Gets the Activity name and assigns it to the sm_workflow_activity field
// Works as of 30 June 2023  NDH

Innovator inn = this.getInnovator();
string actId = this.getID();  // GET current Activity ID

// Added for Method identification associated to error message  27 September 2022  NDH
string methodName = "\r\n Method:  sm_Get_Activity_Name";

// GET workflow item
Item wflItem = this.newItem("Workflow","get");
    wflItem.setAttribute("select","source_id,source_type");
    
Item wflProc = wflItem.createRelatedItem("Workflow Process","get");
    wflProc.setAttribute("select","name");

Item wflProcAct = wflProc.createRelationship("Workflow Process Activity","get");
    wflProcAct.setAttribute("select","related_id,name");
    wflProcAct.setProperty("related_id",this.getID());
    wflItem = wflItem.apply();

// VERIFY that the Workflow has been retrieved
if (wflItem.getItemCount() != 1 || wflItem.getProperty("source_id","").Length != 32 || wflItem.getPropertyAttribute("source_type","keyed_name","").Length < 1)
{
    return inn.newError("Error retrieving workflow: " + wflItem.getErrorDetail() + methodName);
}

// GET ItemType of the change using the Method - labs_GetControlledItemCSharp
Item controlledItem = this.newItem(this.getAttribute("type"), "labs_GetControlledItemCSharp"); 
    controlledItem.setID(this.getID()); 
    controlledItem = controlledItem.apply();

Item wflActivity = this.newItem("Activity","get");
    wflActivity.setAttribute("select","name");
    wflActivity.setID(wflProcAct.getProperty("related_id"));
    wflActivity = wflActivity.apply();

string cmType = controlledItem.getAttribute("type");
string activityName = "";

switch(wflActivity.getProperty("name"))
{
    case "Close Change":
    case "Close ECR":
    case "End":
        activityName="Closed - Completed";
        break;
    
    case "Cancel Change":
    case "Cancelled":
        activityName="Closed - Cancelled";
        break;
    
    default:
        activityName=wflActivity.getProperty("name");
        break;
}

bool permissionWasSet = false;
Aras.Server.Security.Identity transIdentity = Aras.Server.Security.Identity.GetByName("Aras PLM");

try
{
    // permissionWasSet = Aras.Server.Security.Permissions.GrantIdentity(transIdentity);
    Aras.Server.Security.Identity admin = null;
	bool permsWasSet = false;
	
	admin = Aras.Server.Security.Identity.GetByName("Aras PLM");
	permsWasSet = Aras.Server.Security.Permissions.GrantIdentity(admin);
    
    // SET the Workflow Activity field from the change
    var ecoParent = this.newItem(cmType, "edit");
        ecoParent.setID(wflItem.getProperty("source_id"));
        ecoParent.setProperty("sm_workflow_activity",activityName);
        ecoParent = ecoParent.apply();
}

finally
{
    if (permissionWasSet)
    {
        Aras.Server.Security.Permissions.RevokeIdentity(transIdentity);
    }
}

return this;

    // return inn.newError("Test: " + activityName);