How to change visibility setting

[kukuzry]

This is a lighting fixture family file. How can I uncheck "HOST" using API?

See the image attached2015-03-03_021018.jpg


Thanks!

[ColinStark]

You'll want to use the View3D.SetVisibility method.

You'll need to pass it the Category object for your "Host" subcategory. You should be able to retrieve it by doing the following:

Category lightingFixtureCategory = doc.Settings.Categories.get_Item(BuiltInCategory.OST_LightingFixtures);

Category hostSubCategory = (from Category cat in lightingFixtureCategory.SubCategories where cat.Name == "Host" select cat).First();

With the category object retrieved, the SetVisibility call will look something like this:

view3D.SetVisibility(hostSubCategory, false);