Altium Designer Documentation

Choose Document to Reference

Created: March 6, 2019 | Updated: January 11, 2020
Now reading version 20.2. For the latest, read: Choose Document to Reference for version 21
Applies to Altium Designer versions: 19.0, 19.1, 20.0, 20.1 and 20.2

The Choose Document to Reference dialog


This dialog allows you to choose the target schematic document that is to be referenced by the sheet symbol whose properties are currently being defined.


The dialog is accessed from the Properties panel in Sheet Symbol mode by clicking  to the right of the File Name field in the Source region.


The main area of the dialog lists all candidate schematic documents for the project that can be used as the target reference sub-sheet for the sheet symbol. Each valid document's name and path to the folder in which it resides is listed.

Click on an entry to select the required document.

The sheet on which the sheet symbol is placed will not be listed. This is because a sheet symbol cannot reference the same sheet on which it is already placed.


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