I've got a few months' experience tinkering with .NET programming for AutoCAD under my belt, and I feel like I have a decent understanding of how to do various basic one-time operations in the drawing space...
But now I find myself wanting to create things that are dynamic and self-updating...say, for example, a "custom" version of a GEOMCONSTRAINT operation or something that draws custom entities based on the properties of a Civil 3D object and then erases and redraws these entities whenever the Civil 3D objects are changed.
I'm kind of at a loss as to where I should start...I know that for performing one-time operations, transactions are the "vehicles" that get the job done...what is the "vehicle" I'm looking for here? (I'm hoping that what I'm describing is indeed possible?)
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