Topic: Losing Block Name

[kshitij.jadhav@cctech.co.]

While developing an AutoCAD plugin in .NET, I encountered an issue where creating two new visibility states and setting this visibility to a block reference causes the block name to change to a format like UXXX (where X represents any digit). Although I can retrieve the original name from the dynamic table record, is there an alternative approach to prevent the block name from changing?

[Jeff H]

When you insert blocks(BlockReference) they can only vary by position, rotation, and scaling from its definition(BlocktableRecord). So you really can not have a block that has different entities or representations of itself and have the ability to be dynamic.
AutoCAD does this by creating anonymous definitions(BlockTableRecords) naming them *UXXX for each of the dynamic states needed for all the references inserted in a drawing.