FilteredElementCollector issue

[rafaelyn]

Hi,

I'm trying to list only visible Floor in this activeview (see Figure 1).

But when using:

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ElementCategoryFilter filter = new ElementCategoryFilter(BuiltInCategory.OST_Floors);
FilteredElementCollector collector1 = new FilteredElementCollector(doc, doc.ActiveView.Id);
collector1 = collector1.WherePasses(filter);

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He is also listing this Floor. (see Figure 2)

But if I change the Floor (see figure 3), it works and does not list the previous Floor.

Anybody can help me?

[Joe.Ye]

Hi rafaelyn

I cannot get your idea from those pictures.

Please add some comments to the two pictures.

thank you.

[rafaelyn]

Hi Joe!

Figure 1 shows the section view of my project.

When I use the above code it also lists the shaded slab (Figure 2).

using: new FilteredElementCollector (doc, doc.ActiveView.Id😞

he should not only list the slab down? (Figure 2, not hatched slab)

sorry my English (Google Translator).