In VBA it was fairly easy to move an object, there was usually a Move method associated with an entity. In .NET it’s a bit more complicated because you use the TransformBy method. The TransformBy method not only moves an object it also lets you scale, rotate and mirror an object. TransformBy requires a Matrix3d object which determines what happens to the object. The AutoCAD .NET Developers Guide covers how to use each one fairly well, do a search for “Transform Objects” for more information on how to do it. That’s will be where I’ll be looking for it once I find this reminder post.