Get Categories

[Anonymous]

HI Guys im trying to get a list of category similar to visibility graphics options as shown in the image

but for some reason im get extra items. How do i filter them?

 foreach (Category cat in _doc.Settings.Categories)
            {
                categories.Add(cat);
            }
            foreach(Category category in categories)
            {
                if (category.CategoryType == CategoryType.Model)
                {
                    TreeNode treeNode = new TreeNode(category.Name);
                    foreach (Category sub in category.SubCategories)
                    {
                      
                        {
                            treeNode.Nodes.Add(sub.Name);
                            
                        }
                    }

                    treeView1.Nodes.Add(treeNode);
                }
            }

[TripleM-Dev.net]

Hi,

Good one, never noticed, I display them in a DataGrid and never compared.

Maybe a couple of things:

Check if it's a builtin Category (Try to convert to a BuiltinCategory Enum)

If true then compare against you're own "internal use only list names".

The names seem to consist of the Function Layers + Cut/Surface pattern names.

And see if those are the only ones?...

Function LayersIllegal chars

I'm going to include an additional column in mine, thanx for noticing.

Add Column for those!

- Michel

[Sean_Page]

See here as well.

https://forums.autodesk.com/t5/revit-api-forum/how-to-get-category-list/td-p/4477699

[TripleM-Dev.net]

Hi @Sean_Page ,

That solution would not retrieve all Categories as displayed in the Object styles, as asked by OP.

However, good addition, added it also to my addin for added information.

As you can see below only slabedges can be bound to project parameters, several other builtin can't and neither user created subcategories.

Categories

- Michel