Fields in Block Attributes: Prompt

Is there a way to create a block that has an attribute with a object linked field in it which will prompt you to select the object that the field will be linked to upon insertion?

At this point I'm thinking to create the block with an attribute and then make a macro (would only be semi-automatic) or lisp to insert the block then prompt to select the item. If only I actually knew lisp.

While I'm not really a LISP writer I think it would be possible if you first create a Custom drawing property, then create the field to pull from it in the attribute, then block it all together. Then have the LISP create the custom property upon insertion and prompt the user for a value.

Of course "should be possible" is Max-speak for I don't know how to do it.

In this case I will be making the block with attributes that will grab polyline data. I had thought to actually make the polyline a part of the block and then make the block dynamic with stretch functions, but then what if I needed to add or remove vertices? I don't think it would work. I did test it and it worked except for the adding/removing vertices.

I may have to go to the lisp forums and ask for help.

What are you trying to create exactly?

I create polylines for the limits of new asphalt, demo asphalt, etc. and am looking at using attribute extraction for quantification to make it quicker and easier to put into the cost estimate.

Hmm...I knew as soon as I saw the Civil3d under your name I probably wouldn't like it

Hardy har har.

If you have any other idears toss em up.

Depends on the information you want from the attributes.

Actually I may just use the Map route to extract the data.