How to turn off "mesh lines"?

[BeKirra]

I have a 3d model showing the "mesh lines" as below.

How to turn them off?

Thanks.

[JDMather]

What is your current shademode?

[nestly2]

What is different in this case compared to the previous one?

http://forums.autodesk.com/t5/AutoCAD-2013-2014-2015/How-to-remove-mesh-from-3d-Object/td-p/4981166

[BeKirra]

I think it is a different one. Please see the attchement.

The shademode = "shaded" and I turned off the Edge Isolines.

It doesn't make any difference.

[JDMather]

What type of object is that?

Hint: run the List command.

What happens if you Explode the "object"?

Now run List command.

Experiment with previously suggested solutions.

[BeKirra]

The object is a block "bonnet_ok", bonnet of car.

As you suggested, here is what I got (note: there is no other layers except layer "0" in the drawing):

Command: LIST

Select objects: 1 found

Select objects:

                  BLOCK REFERENCE  Layer: "0"                             Space: Model space                    Handle = 28cfe        Block Name: "bonnet_ok"                 at point, X=   0.0000  Y=   0.0000  Z=   0.0000    X scale factor:    0.0394    Y scale factor:    0.0394    rotation angle:      0    Z scale factor:    0.0394   Scale uniformly: No   Allow exploding: Yes

I then exploded it and now every pieces are "polyface mesh". I select a piece:

Command: LIST

Select objects: 1 found

Select objects:

                  POLYLINE  Layer: "0"                             Space: Model space                    Color: 255,0,11    Linetype: "BYLAYER"                    Handle = 295d8    Polyface mesh

                  VERTEX    Layer: "0"                             Space: Model space                    Color: 255,0,11    Linetype: "BYLAYER"                    Handle = 295d9    Polyface vertex                 at point, X=   0.0000  Y=  -0.0386  Z=  -0.0013

                  VERTEX    Layer: "0"                             Space: Model space                    Color: 255,0,11    Linetype: "BYLAYER"                    Handle = 295da    Polyface vertex                 at point, X=  -0.0098  Y=  -0.0465  Z=  -0.0029

                  VERTEX    Layer: "0" Press ENTER to continue:                             Space: Model space                    Color: 255,0,11    Linetype: "BYLAYER"                    Handle = 295db    Polyface vertex                 at point, X=   0.0000  Y=  -0.0470  Z=  -0.0028

                  VERTEX    Layer: "0"                             Space: Model space                    Color: 255,0,11    Linetype: "BYLAYER"                    Handle = 295dc Polyface face record     Face vertices:  1 2 3

                  END SEQUENCE  Layer: "0"                             Space: Model space                    Color: 255,0,11    Linetype: "BYLAYER"                    Handle = 295dd

Finally, I check the "visualstyles", the edge has been turned off in the current shade mode.

What should I do?

[JDMather]

The point is you are not likely to get what you are expecting with a polyface mesh.

[BeKirra]

Sorry I am not familiar with "polyface mesh".

Then the solution is ...?

[BeKirra]

Does it mean there is nothing to do with it?

Does anyone have other ideas?

Thanks.