Which property of DBObject can determine that the entity has been modified？

[1039574776]

Which property of DBObject or Entity can determine that the entity has been modified. For example, if I modify entity A, after saving it, I will judge whether entity A has been modified. It is also possible that there are other entities in the drawing, only other entities are modified, entity A is not modified, and then the drawing is saved. At this time, I use the program to judge whether entity A has been modified. If it is not modified, it will not operate. If there is modification, the required code will be executed.thanks in advance.

@_gile

[norman.yuan]

In general, you can either handle DBObject.Modified or Database.ObjectModified event, with latter being used more commonly.

You can also use ObjectOverrule to even watch particular property changes of a DBObject/Entity. One of my articles would give some idea on this:

https://drive-cad-with-code.blogspot.com/2020/05/prevent-certain-properties-of-entity.html 

However, I'd not make things too complicated if simply watching Database.ObjectModified event does the work.

[1039574776]

First of all thanks norman.yuan. It should be pointed out that I am drawing the reference file as the base map, and I do not have the authority to modify the base map. When an entity in the reference file is modified, I use a command in my own drawing to check whether there is any modification in the reference file, and if there is a modification, modify the corresponding part in my drawing accordingly. So I need to find that flag that records itself as being modified so I can do my job. Thanks again to everyone who could reply.

[1039574776]

First of all thanks norman.yuan. It should be pointed out that I am drawing the reference file as the base map, and I do not have the authority to modify the base map. When an entity in the reference file is modified, I use a command in my own drawing to check whether there is any modification in the reference file, and if there is a modification, modify the corresponding part in my drawing accordingly. So I need to find that flag that records itself as being modified so I can do my job. Thanks again to everyone who could reply.