Updated: Nov 20, 2019
The example below shows a Setting Out Data Table which has question marks for the Start and End chainages. Another problem is that the Start and End X coordinates do not have negative signs:
This problem occurs when a Table Style is copied between the drawings using the Drag & Drop feature because it does not copy the expressions used in the table style. Expressions are equations used for the table values, in the example above the X and Y coordinates are multiplied by -1.
The best way to solve this problem is by importing Expressions from the other drawing.
The process requires that you have a drawing or template with the same Table Style and with working Expressions. Autodesk® Civil 3D® 2017 or a newer version must be used, older versions do not allow to set a Style Reference Drawing.
Go to the Manage tab in the Ribbon and select the Reference command:
Browse to the drawing or template containing the working Expressions by clicking on the Plus sign:
Click on Update:
The Table will now display the correct information:
If you check the list of Expressions (the print screen below shows Line Labels Expressions), it adds missing Expressions and also fixes the corrupted Expressions:
Before connecting to the Reference Drawing:
After connecting to the Reference Drawing:
If you detach the Reference Drawing or Template, the Expressions will not be reverted to their original state, therefore they will remain fixed.