Thank you Attila Antal:
Perhaps i didn't explain my question.
I want to save the Persistence of grid to my database auto,not through clicking the button.(I only example width,other i want to save also)
I want to run the "this.RadPersistenceManager1.SaveState()", after the resized or reorder,but failed.
Beacuase after resized ,the status of width was old.
Can you give any suggest?
Thank you very much.