Delete dwg layer

[Eri.Myalitsin]

Hi,

I am trying to delete a specific layer of dwg files inserted to rvt file.

Following code works only for the first dwg but cannot work for other files.

doc.Delete(c.Id)

It means the foreach loop in the following code doesn't work.

FilteredElementCollector eCollector = new FilteredElementCollector(doc);
eCollector.OfClass(typeof(ImportInstance));

foreach ( ImportInstance e in eCollector)
{
            	foreach ( Category c in e.Category.SubCategories)
            	{
            			if (c.Name == "0") // layer name
            			{
            					doc.Delete(c.Id);
            			}
            	}
}

Any feedback would be appreciated.

Thanks,

Eri

[Eri.Myalitsin · Accepted solution]

Sorry, this code worked! Implementation was interrupted due to different part of the program.

Thank you very much for your attention.

[Anonymous]

But what's about the geometry that still remains in DWG? The deletion procedure has just removed the layer from DWG's subcategories list and the "Layer" property of geometry objects in the DWG has just changed into "Undefined".

[775184106]

I have the same issue that the geometry object could not be deleted when the layer has been removed. do we have some resolution to do the deletion on both layer and geometry?

[Dale.Bartlett]

I didn't look at this closely, but it appears to me that you are deleting an object that is inside your foreach loop. You should loop foreach, and add every found c.id to a list. Then outside the foreach loop, delete everything in the found list.