Can’t Delete Level in MicroStation?

Resolving Level Deletion Issues in MicroStation

MicroStation provides powerful tools for managing levels within drawing files. However, occasionally users encounter difficulties when trying to delete a level. This guide outlines potential reasons why you may not be able to delete a level and provides a step-by-step approach to solve this issue.

Understanding the Level Structure in MicroStation

Levels in MicroStation serve as organizational layers that help users separate and manage drawing elements effectively. Each level can have distinct attributes such as color, style, and weight. Before attempting to delete a level, it’s essential to know that certain conditions must be met for a successful deletion.

Common Restrictions for Level Deletion

1. Elements on the Level: If there are any drawing elements within the level you wish to delete, you will not be able to remove that level. Elements must be removed or moved to another level before deletion can occur.

2. Model Records: Levels used across different models (such as Sheets or Drawings) may also prevent deletion. If the level exists in another model, it must be removed from all models prior to either purging or deleting.

3. Level Locks: If the level is locked, you will encounter restrictions when attempting to delete it. Make sure the level is unlocked.

Steps to Delete a Level in MicroStation

1. Check for Elements:

   • First, identify the level by navigating to the Levels dialog box.
   • Review what elements are on the target level. You can achieve this by selecting the level and using the “Select By Attributes” tool to highlight elements associated with it.

2. Move or Delete Elements:

   • If there are elements present, either delete them if they are no longer needed or move them to a different level. To move elements:
     • Select the elements.
     • Access the “Change Attributes” tool.
     • Choose a new level from the dropdown menu before applying the change.

3. Unlock the Level:

   • Navigate to the Level Display dialog (Settings > Level > Display).
   • Ensure that the level is not locked. If locked, right-click on the level and select "Unlock" to enable changes.

4. Purge the Level:

   • Once the level is cleared of all elements and unlocked, access the command input window.
   • Type the command LEVEL PURGE <LevelName> (replacing <LevelName> with the actual name of the level you wish to delete).
   • Confirm the action; if successfully purged, the level will be removed.
5. Verify Deletion:
   • After purging, go back to the Levels dialog box to ensure the level is no longer listed. If it still appears, double-check that no elements remain and that all model references have been resolved.

Frequently Asked Questions

What do I do if I can’t find the level I want to delete?
Ensure you are in the correct model and check if the level is not hidden. Use the Level Display dialog to unhide any levels if necessary.

Can I delete a level that is part of a reference file?
No, you need to manage levels within the active model only. If a level appears in a reference, you’ll need to address the reference file itself.

Will I lose the attributes of the elements if I delete a level?
Yes, elements associated with the deleted level will typically be moved to the "Default" level automatically. If you require specific attributes to be maintained, consider moving them to a different level instead of deletion.