how to update database using bindingsource
 

hi, i need to update my database using bindingsource. i tried to use bindingsource.endedit but nothing was updated on the database and it didn't returned any error message.

i also tried dataadapter.update(bindingsource.datasource) after bindingsource.endedit code. and i got an error: Update requires a valid UpdateCommand when passed DataRow collection with modified rows.

show us some code