How to use item.SystemUpdate() in SharePoint

item.SystemUpdate() - It is used when we do not want fields such as Modified,ModifiedBy gets updated or if we do not want a new version should be created.

 

In the below code I used to get SharePoint List Item from different method and then update it.

using (SPSite site = new SPSite(SPContext.Current.Site.ID))

{

using (SPWeb web = site.OpenWeb())

{

SPListItem item = GetItem("TestListSite1", 1);

web.AllowUnsafeUpdates = true;

item["Title"] = "Update List Item";

item.SystemUpdate();

web.AllowUnsafeUpdates = false;

//remaining code

}

}

Executing the above code gave an error below.

 

 

After searching I found that we should make AllowUnsafeUpdates = true of the item that we are updating and since I was getting item from a different method I used the below code.

 

The only change I made is this item.Web.AllowUnsafeUpdates = true;

using (SPSite site = new SPSite(SPContext.Current.Site.ID))

{

using (SPWeb web = site.OpenWeb())

{

SPListItem item = GetItem("TestListSite1", 1);

item.Web.AllowUnsafeUpdates = true;

item["Title"] = "Update List Item";

item.SystemUpdate();

item.Web.AllowUnsafeUpdates = false;

}

}

By using above code I was successfully able to update the list item using item.SystemUpdate();