The Client Object Model must conclude with a call to Execute Query() or Execute Query Async(Client Request Succeeded Event Handler, Client Request Failed Event Handler).When working in Share Point, you may come across the need to perform mass updates or batch update of properties on many items in a list at once.
I select Title as the key and then I have the line item set to overwrite so that I can copy list1 item A to list2 Item A but it doesn't do it.
It duplicates fine but won't overwrite the line entry. This does not answer the question as per the Stack Exchange standards. If you are facing any issue with your code then you can ask a new question describing your problem.
Making the update in a cell is quick because once you make the update and click on a different row, the change is automatically saved.
And with big numbers of changes you are able to edit quickly without changing screens or click on a save button every time.
I am trying to update for single item only, although I will modify it for large number of items but for now I am concerned about the fact that it is not working for single item and will it work for large number of items.
I used it for multiple items, but then it didn't worked for multiple items.
In the "Find the List Item" section select the field you want to use for identifying the correct item, for example the ID field.
Learn how to perform basic create, read, update, and delete (CRUD) operations on lists and list items with the Share Point REST interface.
Let's say for instance you have a Share Point list where you manage tasks.