Comments on: Inconvenient programmatically working with SharePoint users (SPWeb.EnsureUser)

By: dotNetFollower

dotNetFollower — Tue, 16 Aug 2011 02:13:15 +0000

Hello!
Very nice article. I worked with EnsureUser and found out that there are a few other inconveniences. For example, we need almost always to use elevated privileges to deal with EnsureUser, otherwise exception will be thrown. Or for example, if user doesn't exist in user collection, it will be tried to add to this collection, but this means that spWeb object will be modified and it's required AllowUnsafeUpdates = true. Eventually, I've developed a small method-wrapper for EnsureUser. It's shown in my blog – http://dotnetfollower.com/wordpress/2011/05/sharepoint-wrapper-over-ensureuser/
Thanks!

By: Moninder

Moninder — Thu, 19 May 2011 16:49:45 +0000

Thanks a lot. This saved me lot of time troubleshooting. You rock! I was struggling getting the user's added since our web app uses claims based authentication

By: Moninder

Moninder — Thu, 19 May 2011 16:48:32 +0000

Thanks a lot. This saved me lot of time troubleshooting. You rock!

By: Ignacio F

Ignacio F — Tue, 14 Dec 2010 20:53:02 +0000

You just took my stress away! Great post and the snippets work like a charm. Thank you SO much. Cheers!

By: Waldek Mastykarz

Waldek Mastykarz — Mon, 22 Nov 2010 14:00:04 +0000

@Dilip V.: great to hear you got it all working. You're welcome :)

By: Dilip V.

Dilip V. — Mon, 22 Nov 2010 13:54:20 +0000

Hi Waldek Mastykarz,

Now I m able to create new user. Thank you very much. You are SharePoint Guru(Teacher).

After replacing SPControl.GetContextWeb with spSite.OpenWeb(); I got error:
The security validation for this page is invalid. Click Back in your Web browser, refresh the page, and try your operation again.

I refered the site:
http://www.bizsupportonline.net/blog/2008/12/microsoftsharepointspexception-the-security-validation-for-this-page-is-invalid-error-infopath-browser-forms/
and added below code
spWeb.AllowUnsafeUpdates = true;
string userName = \"fbamembership\" + Username.Text;
SPUser spUser = spWeb.EnsureUser(userName);
SPRoleAssignment roleAssignment = new SPRoleAssignment(spUser);
spWeb.AllowUnsafeUpdates = false;
I wanted to know, r u online every time because I got ur response everytime immediately.

Once again Thank You Guru.

By: Dilip V.

Dilip V. — Mon, 22 Nov 2010 13:53:35 +0000

Hi Waldek Mastykarz,

Now I m able to create new user. Thank you very much. You are SharePoint Guru(Teacher).

I refered the site:
http://www.bizsupportonline.net/blog/2008/12/microsoftsharepointspexception-the-security-validation-for-this-page-is-invalid-error-infopath-browser-forms/
and added below code
spWeb.AllowUnsafeUpdates = true;
string userName = "fbamembership" + Username.Text;
SPUser spUser = spWeb.EnsureUser(userName);
SPRoleAssignment roleAssignment = new SPRoleAssignment(spUser);
spWeb.AllowUnsafeUpdates = false;
I wanted to know, r u online every time because I got ur response everytime immediately.

Once again Thank You Guru.

By: Waldek Mastykarz

Waldek Mastykarz — Mon, 22 Nov 2010 13:09:17 +0000

@Dilip V.: replace SPControl.GetContextWeb with spSite.OpenWeb(); Additionally if you're running in the context of a Web Application you don't need to reset the context.

By: Dilip V.

Dilip V. — Mon, 22 Nov 2010 13:00:45 +0000

In my code, I have not added \ which came by default before "

By: Dilip V.

Dilip V. — Mon, 22 Nov 2010 12:56:42 +0000

Hi Waldek Mastykarz,
Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(delegate
{
string strSiteURL = \"http://ps2010\";
SPSite spSite = new SPSite(strSiteURL);
SPWeb spWeb = SPControl.GetContextWeb(HttpContext.Current);
if (HttpContext.Current == null)
{
HttpRequest request = new HttpRequest(\"\", spWeb.Url, \"\");
HttpContext.Current = new HttpContext(request, new HttpResponse(new StringWriter()));
HttpContext.Current.Items[\"HttpHandlerSPWeb\"] = spWeb;
}
string userName = \"fbamembership\" + Username.Text;
SPUser spUser = spWeb.EnsureUser(userName);
SPRoleAssignment roleAssignment = new SPRoleAssignment(spUser);
});
Tried the above code but still fails, any other idea.