Update Created, Created By, Modified, Modified By using CSOM

Question

How to update Created, Created By, Modified and Modified By in list items using CSOM?

Answer 1

Please find the code to update Created, Created By, Modified, Modified By using CSOM.

            ClientContext ctx = new ClientContext("http://siteURL/");
            List list = ctx.Web.Lists.GetByTitle("Info Path");
            ListItemCollection items = list.GetItems(CamlQuery.CreateAllItemsQuery());
            ctx.Load(items); // loading all the fields
            ctx.ExecuteQuery();
            User theUser = ctx.Web.EnsureUser("domain\\user");
            ctx.Load(theUser);
            ctx.ExecuteQuery();
            foreach (var item in items)
            {
                item["Created"] = "2015-07-03";
                item["Modified"] = "2017-07-03";
                item["Editor"] = theUser;
                item["Author"] = theUser;
                item.Update(); //Apply the change
            }
            ctx.ExecuteQuery();