Trouble changing built in parameter of view

[Gouz91]

Good evening,

I am trying to change the phase filter to Show All in a 3D view using the API. However it seems i can't set the parameter even when it return True.

The value of the phase filter parameter remains the same after running the script.
What am i doing wrong?
If it's impossible to change the phase filter, is there a way to import a viewtemplate from another file and apply that to a 3Dview?

using System;
using Autodesk.Revit.UI;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI.Selection;
using System.Collections.Generic;
using System.Linq;

namespace test
{
    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
    [Autodesk.Revit.DB.Macros.AddInId("0C4DCB69-0A65-4FE4-9269-63E62D661120")]
    public partial class ThisDocument
    {
        private void Module_Startup(object sender, EventArgs e)
        {

        }

        private void Module_Shutdown(object sender, EventArgs e)
        {

        }

        #region Revit Macros generated code
        private void InternalStartup()
        {
            this.Startup += new System.EventHandler(Module_Startup);
            this.Shutdown += new System.EventHandler(Module_Shutdown);
        }
        #endregion
        public void test12()
        {
            UIDocument uidoc = Application.ActiveUIDocument;
            Document doc = uidoc.Document;
            FilteredElementCollector collector = new FilteredElementCollector( doc ).OfClass( typeof( View3D ) );
            
            
            foreach( View3D v in collector )
            {
                msg(v.Title.ToString());
                Parameter param = v.get_Parameter(BuiltInParameter.VIEW_PHASE_FILTER);
                msg(param.AsValueString());
                msg(param.Set("Show All").ToString());
                msg(param.AsValueString());
            }

        }
        
                    public void msg(string message)
            {
                TaskDialog.Show("debug", message);
            
            }
    }
}

[arqt49]

VIEW_PHASE_FILTER parameter type is ElementId, not boolean.

First, you have to find the "Show all" filter (using a collector, for instance), and then assign its Id property to the parameter.

[Gouz91]

Thank you! It worked perfectly!