AutoCAD Civil 3D :: Error Adding Breakline Message When Editing Surface With Feature Lines

Jul 11, 2012

I am working on a 6 mile highway project whose surface file is 85MB big. So, I created a Data Shortcut of this surface and used this for creating profiles. However, at some locations the corridors go below the surface(as per their original profile) which was not intended. So, I need to restrict the surface to follow the corridors but not go beyond it.

I have created feature lines from corridors and tried to add them as breaklines to the surface. But " error adding breakline" error pops up. 

Is it because I am trying to add the breaklines to the mirror surface which I created from Data Shortcut ??

Will it be useful if I copy feature lines to original surface file and add these feature lines as breaklines in that file??

Windows 7 x 64
Nvidia Quadro 2000
24 GB Ram
i7 960 @ 3.20 GHz
Civil 3D 2012

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[URL]

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Autocad Civil 3D 2014 +SP1
Quad Core Intel i7 3770-cpu 3.40Ghz.
ssd samsung 840 pro 512gb+ssd samsung 840 pro 256 gb+1tb hdd
32gb RAM 1600 Mhz.
nVidia Quadro 2000.
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 try
{
Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;

[Code]...

However, I don´t understand how I can get type of Surface Operation..

This code line doesn´t work.

if (OperationColl[i].GetType().ToString()== "SurfaceOperationAddBreakline")

Autocad Civil 3D 2014 +SP1
Quad Core Intel i7 3770-cpu 3.40Ghz.
ssd samsung 840 pro 512gb+ssd samsung 840 pro 256 gb+1tb hdd
32gb RAM 1600 Mhz.
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