Performing property queries

- Often when querying attached drawings…you only want objects that have a particular…AutoCAD property, such as layer or color.…The property query is used for such a condition.…For example, you may want to query…all the drawing for a layer called "Roads"…even though the Roads layer spans multiple drawings.…Let's try that out, we'll attach…the streets, hydrology and buildings to our current drawing.…We'll do a quick view, just to see what it looks like.…Click OK, double click on current query,…and instead of using location, data or SQL,…we'll be using a query type called "Property."…In this case we can go into the layer property condition,…click on "Values" and choose…whatever layers you'd like query.…

In this case I'm just going to pull in…streets and buildings layers from all my attached drawings.…Click OK.…You'll see Buildings and Streets…are both listed as a layer that we want to query.…Click OK, we'll do it in preview mode for now.…And click Execute.…Now since we had a quick view,…we had the old layers in the background.…