Revit API: Material Asset Parameters get and set

Question

I am trying to access via RevitAPI the data that is contained for particular asset. For instance I want to manipulate the Identity Data and get and eventually set some data for Manufacturer, Model, Cost and URL. How can I achieve the same for the other Assets?

I am reading the Materials:

public IEnumerable<Material> GetMaterials(Document doc)
    {
        collector = new FilteredElementCollector(doc);

        return collector.OfClass(typeof(Material)).OfType<Material>();
    }

And then the Parameters:

public IEnumerable<Parameter> GetMaterialParameters(Material material)
    {
        List<Parameter> parameters = new List<Parameter>();
        var localParameters = material.ParametersMap;

        foreach (Parameter localParameter in localParameters)
        {
            parameters.Add(localParameter);
        }

        return parameters;
    }

but still can't find where those properties are exposed.

score 0 · Answer 1 · answered Aug 16 '17 at 05:37

0

What you really need is the Visual Materials API that was introduced in Revit 2018.1, the newest update:

Revit 2018.1 and the Visual Materials API

It is much harder and maybe impossible to achieve what you want in earlier versions.

Here are pointers to some more or less futile attempts:

answered Aug 16 '17 at 05:37

Jeremy Tammik

7,333
2
12
17

Thank you. But I can't find any samples. Is there any? – Ivan Stefanov Aug 16 '17 at 15:10

score 0 · Answer 2 · answered Aug 16 '17 at 13:58

Finally this is how I managed to edit the parameters.

private void AssignProductData_OnClick(object sender, RoutedEventArgs e)
    {
        var material = (MaterialItem)MaterialsCombo.SelectedItem;

        using (var transaction = new Transaction(doc))
        {
            transaction.Start("ChangeName");

            var parameterManufacturer = material.Material.get_Parameter(BuiltInParameter.ALL_MODEL_MANUFACTURER);
            parameterManufacturer.Set("Brand New Product");

            var parameterCost = material.Material.get_Parameter(BuiltInParameter.ALL_MODEL_COST);
            parameterCost.Set(1099.99);

            var parameterModel = material.Material.get_Parameter(BuiltInParameter.ALL_MODEL_MODEL);
            parameterModel.Set("R1223123KJNSDAS9089");

            var parameterUrl = material.Material.get_Parameter(BuiltInParameter.ALL_MODEL_URL);
            parameterUrl.Set("http://www.site.no/products/R1223123KJNSDAS9089");

            transaction.Commit();
        }
    }

Revit API: Material Asset Parameters get and set

2 Answers2