Display active files last saved date and time in print border.

Background

This article presents adding a Named Expression value to the Print border text.

Steps to Accomplish

Create a Named Expression "FileLastSavedTime" (preferably in a DGNLIB file)

Select the "Utilities > Named Expressions" menu item to load the Named Expressions dialog.
Select the "New" icon in the toolbar, and enter "FileLastSavedTime" in both the "Internal Name" and "External Name" fields.
In the combo box to the right of the list box under "Symbol Sets", select "Active File" and pick the Add button. Repeat for "System.String" symbol set.

In the Expression field enter the following string.

Select the "Test" button to view the value of the expression.

Select the Save icon on the toolbar.
Close the Named Expression dialog and save the changes “File > Save”

Apply the Named Expression to the Printer Driver File

Select the "File > Print" menu item to load the Print dialog.
From within the Print dialog select the “File > Select Bentley Driver” menu item and choose PDF.pltcfg as our Printer Driver Configuration File.
Select “File > Edit Printer Driver Configuration” for editing.
Select “Base Properties” Tab.
Select “Print Border” section.
Set “Border On” to True.
Set “Border Outline On” to True.
Set “Include File Name in Border Text” to True.
Set “Include Date/Time in Border Text” to False.
Set “Border Comment” to <expr?name=FileLastSavedTime>

The Named Expression value would be appended to the Border Text.

Select the “File > Save” menu item to save the changes.
Select the “File > Exit” menu item to close the Printer Driver Configuration dialog.
Select the “File > Reload Printer Driver Configuration” to reload the updated driver.
Select the “Print” icon and test the Border Text. A sample is attached below.

Note: Whenever the design is printed, MicroStation sets the PIDSI_LASTPRINTED file property.
This changes the file modification time, unless the design was opened in read-only mode.
If you set the configuration variable MS_PLT_SET_LAST_PRINTED_TIME=0, MicroStation will not set PIDSI_LASTPRINTED.

How can I combine the path to the design file name, date and time file into a single string inside of a MicroStation pen table?