Please help to clarify a few questions before going any further:
1. By "the last value", did you mean the last option in the dropdown control? For example, if the options are "1","2","3", then 3 is the last value you are referring to?
2. By "maintain the previous value", did you mean that this dropdown control is inside a Form control, and it has an existing value selected, you want to create a new record with this previous selected value to the data source?
If my understanding is incorrect, please explain with some sample data.
Community Support Team _ Mona Li If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.