Steven Van de Craen's Blog

Hello, First of all, this instruction : DateTime.Now.ToString.AddYears doesn't compile at all, I guess you need instead : DateTime.Now.AddYears Also, I never make it work to change the "Created" field : as soon as I invoke the UpdateOverwriteVersion() method, the "Created" field is modified and become the current datetime. Thanks for you help.

Gilles thanks for the heads up. I've fixed the code error. The created date shouldn't be modified when you do the update. Are you not mistaken with 'Modified' ? Also I've found that in order to change the 'Created' fields you need to explicitly set the 'Modified' fields as well (even if you assign them their current value).

Hi Steven, How we can change the modified column of Page library. The page is under workflow and through code we are approving and publishing the page, but page is publsihing with System Account.Instead of that it should display the user name who has completed the last task.

Anand, you could execute the above code on it and then do an auto Approve from code (bypassing the workflow), but you would see this in the Version history (no way around that AFAIK).

I am getting an unauthorized access exception when running the program on the server. I was able to update the Created and Modified fields but when I add the Author and Editor I get that error. Any help will be appreciated. Thanks.

Domenico, did you try this using the System Account just to make sure the user has sufficient permissions ? Are you running from a Web Part or Console App or ?

I was not using the System Account. I was not aware that you needed to use the System Account. I got it to work by using the following method. SPSecurity.RunWithElevatedPrivileges(delegate() { // do things assuming the permission of the "system account" }); Thanks for your help anyways.

Hi Steven, Thanks for sharing this trick. Based on that I've created a little tool in the form of a custom field that one can use to set these properties from the standard WSS 3.0 / MOSS 2007 list item edit user interface. Hope that helps someone. http://pholpar.spaces.live.com/blog/cns!2CD45589973F2849!200.entry Regards, Peter

Hi, I was using Runwithelevatedprivilege block to upload a file to the document library. But once uploaded the "Created By" and "modified By" field display System Account. I tried the following: addedFile["Author"] = addedFile["Uploaded"]; addedFile["Editor"] = addedFile["Editor"]; addedFile.UpdateOverwriteVersion(); But immediately after this an error is thrown reading: Url is invalid.It may refer to a nonexistent file or folder, or refer to a valid file or folder that is not in the current Web. Please help!!!

Hi, Can we add user in "modified by" field which is not in Active Directory? Like item[“Modified By”] = "Any Name" Any help would be appreciated. Thanks in advance, Milind

Milind, you can't. The user (SPUser) has to exist. If you want to avoid Active Directory you could set up FBA to a different user store and set the field to an FBA user ? But it might be too much effort for what you're trying to do.

Thank you so much for this post! I tried all possible update methods during previous day, field read only set to false and nothing worked until I have updated ALL fields as you have mentioned with UpdateOverwriteVersion. it worked in my 2010 sharepoint doc library like a charm! thank you again.

The full Code which can be used, using (SPWeb web = site.OpenWeb()) { web.AllowUnsafeUpdates = true; SPList list = web.Lists["Shared Documents"]; //SPListItem item = list.Items.GetItemById(4); SPListItemCollection lColl = list.Items; foreach (SPListItem item in lColl) { //item["Title"] = "AAAAAAAAAAA"; //item["Description"] = "New Test"; SPUser user = web.EnsureUser("ss000019"); string usr = user.ID + ";#" + user.Name; SPUser user1 = web.EnsureUser("ssos000020"); string usr1 = user1.ID + ";#" + user1.Name; item["Author"] = usr; item["Editor"] = usr1; item.Update(); } list.Update(); web.Update(); web.AllowUnsafeUpdates = true; } NOTE: to update Created By it is necessary to change Modified By also because whenever u make any changes at item level it requires the user who makes changes...

Thanks Steven for sharing this. You post helped us a lot on our project of moving our cross site document libraries.