How to copy Line Styles from one file to another?

[dantartaglia8696]

Hi,

I have the need to copy all the Line Styles from one model to another, I'm trying to get the element ids for each element I need to copy. I found this post on the Building Coder: http://thebuildingcoder.typepad.com/blog/2013/08/retrieving-all-available-line-styles.html it says, "create a filtered element collector retrieving all ElementType elements belonging to any one of them". I cannot seem to create a FilteredElementCollector() to do this. I'm not entirely sure this is the correct approach for my task. Any help is appreciated!

Thanks,

Dan

[Aaron.Lu]

LineStyles are not elements, so you can't filter them out.
Would you like to try GraphicsStyle?
you can use class filter and category fileter together. i.e. filter class GraphicsStyle and then make sure the categories of these elements are the subset of subcategories of category OST_Lines.

[dantartaglia8696 · Accepted solution]

Hi Aaron,

Thanks for the reply. The below worked for me but I want to see if there is a better filtering approach:

FilteredElementCollector oCollector = new FilteredElementCollector(oDocSource);

ICollection<Element> oElements = oCollector.OfClass(typeof(GraphicsStyle)).ToElements();

foreach (Element oElement in oElements)

{

GraphicsStyle oGraphicsStyle = oElement as GraphicsStyle;

if (oGraphicsStyle.GraphicsStyleCategory.Parent == null)

continue;

if (oGraphicsStyle.GraphicsStyleCategory.Parent.Name.Equals("Lines", StringComparison.CurrentCultureIgnoreCase))

oElementIDs.Add(oGraphicsStyle.Id);

}

...I tried the below filtering but no results came back:

FilteredElementCollector oCollector = new FilteredElementCollector(oDocSource);

ElementCategoryFilter oCategoryFilter = new ElementCategoryFilter(BuiltInCategory.OST_Lines);

oElementIDs = oCollector.OfClass(typeof(GraphicsStyle)).WherePasses(oCategoryFilter).ToElementIds();

Thanks,

Dan

[Aaron.Lu · Accepted solution]

Your solution looks good.

one thing: you can use Category.Id rather than Category.Name to check category, so that it won't have localization problem, like this:

(BuiltInCategory)oGraphicsStyle.GraphicsStyleCategory.Parent.Id.IntegerValue == BuiltInCategory.OST_Lines

[dantartaglia8696]

Hi Aaron,

Thanks for all you help!

Dan