https://forums.autodesk.com/t5/autocad-map-3d-developer-forum/object-data-and-document-events/m-p/624923#M4983 Hi,<BR /> <BR /> I am trying to write some code that will automatically modify a field in an object data table whenever a new object is created from an existing one (for example, with the COPY command).<BR /> <BR /> I have tried writing code in the AcadDocument_ObjectAdded event but every time I attempt to modify the object data attached to the added object, the AttachTo method fails. I know the ObjectAdded event can be triggered many times when new objects are created in Autodesk Map and I have checked the TypeName of Object to ensure that I only attempt to modify object data when the object is of type IAcadObject, however this has not worked either.<BR /> <BR /> I would be grateful if anyone has any suggestions on how I might overcome this problem.<BR /> <BR /> I realise this question is not strictly an Autodesk Map question but I figured object data was only available in Autodesk Map so I would post it to this newsgroup.<BR /> <BR /> TIA,<BR /> <BR /> Scott Wed, 04 Jun 2003 21:24:48 GMT Anonymous 2003-06-04T21:24:48Z https://forums.autodesk.com/t5/autocad-map-3d-developer-forum/object-data-and-document-events/m-p/624923#M4983 Hi,<BR /> <BR /> I am trying to write some code that will automatically modify a field in an object data table whenever a new object is created from an existing one (for example, with the COPY command).<BR /> <BR /> I have tried writing code in the AcadDocument_ObjectAdded event but every time I attempt to modify the object data attached to the added object, the AttachTo method fails. I know the ObjectAdded event can be triggered many times when new objects are created in Autodesk Map and I have checked the TypeName of Object to ensure that I only attempt to modify object data when the object is of type IAcadObject, however this has not worked either.<BR /> <BR /> I would be grateful if anyone has any suggestions on how I might overcome this problem.<BR /> <BR /> I realise this question is not strictly an Autodesk Map question but I figured object data was only available in Autodesk Map so I would post it to this newsgroup.<BR /> <BR /> TIA,<BR /> <BR /> Scott Wed, 04 Jun 2003 21:24:48 GMT https://forums.autodesk.com/t5/autocad-map-3d-developer-forum/object-data-and-document-events/m-p/624923#M4983 Anonymous 2003-06-04T21:24:48Z