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Eric Shupps eshupps The SharePoint Cowboy is the founder and President of BinaryWave, a leading provider of operational intelligence solutions for Microsoft SharePoint. Eric Shupps eshupps The SharePoint Cowboy has worked with SharePoint Products and Technologies since 2001 as a consultant, administrator, architect, developer and trainer. he is an advisory committee member of the Dallas/Ft. Worth SharePoint Community group and participating member of user groups throughout the United Kingdom. Eric Shupps eshupps The SharePoint Cowboy has authored numerous articles on SharePoint, speaks at user group meetings and conferences around the world, and publishes a popular SharePoint blog at http://www.sharepointcowboy.com. Presentations by Eric Shupps eshupps The SharePoint Cowboy Webinar - Migrating Legacy On Premise Solutions to SharePoint Online and Windows Azure featuring Eric Shupps Who are you and what do you want - Working with OAuth in SharePoint 2013 SharePoint is Talking Are You Listening? Eric Shupps SharePoint 2013 Performance Enhancements Taking Advantage of the SharePoint 2013 REST API Eric Shupps on Improving Performance with New Features in SharePoint 2013 SharePoint 2013 New and Improved Migrating Legacy On Premise Solutions to SharePoint Online and Windows Azure Eric Shupps Presents SharePoint 2013 Real World Help Desk App End to End Windows Azure Apps for SharePoint 2013 Eric Shupps Demonstrates Customizing the Visual Studio 2010 SharePoint Deployment Process Introduction to SharePoint Development SharePoint 2010 Unit and Integration Testing with Eric Shupps Building Enterprise Records Management Solutions for SharePoint 2010 Taming Information Chaos in SharePoint 2010 SharePoint 2010 Performance and Capacity Planning Best Practices Building Dynamic Applications with the SharePoint Client Object Model Articles by Eric Shupps eshupps The SharePoint Cowboy Eric Shupps' Ten Steps to Optimize SharePoint Performance Webcasts by Eric Shupps eshupps The SharePoint Cowboy Secrets of SharePoint Part 5: Configuring Microsoft Office SharePoint Server 2007 for Optimal Performance Creating End User SharePoint Solutions for Performance and Scalability SharePoint 2010 Performance Enhancements for Administrators by Eric Shupps Microsoft SharePoint Server 2010 for the ASP.NET Developer Eric Shupps on Following Best Practices and Avoiding Common Errors with Microsoft Office SharePoint Server 2007 Development Eric Shupps - SharePoint Performance and Capacity Planning Essentials Troubleshooting Common Performance Problems in SharePoint 2010 Videos by Eric Shupps eshupps The SharePoint Cowboy Channel 9 Interview with Eric Shupps SharePoint TechTalk with Eric Shupps - Different Views on Social Computing SharePoint Post-Deployment Planning and Management with Eric Shupps SmartTrack for SharePoint Feature Overview SmartTrack for SharePoint Podcasts by Eric Shupps eshupps The SharePoint Cowboy SharePoint Pod Show - Design for Performance (Eric Shupps) SharePoint Pod Show - Test Driven Development with Andrew Woodward and Eric Shupps eshupps The SharePoint Cowboy Run As Radio - Eric Shupps Improves SharePoint Performance
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February 02
SharePoint 2010 Claims Membership.GetUser “Method Not Implemented” Solution

While working on an application which uses SharePoint 2010 claims, I came across a strange error trying to create a password change web part for users who had forgotten their password (and, consequently, can't log in so they need to change their password without any kind of system identity). I assumed – wrongly – that calling System.Web.Security.Membership.GetUser() and passing in a user id string (from an encrypted query string value) would provide the MembershipUser object so the ChangePassword() method could then be called. Instead, all I got was a "method or object not implemented" error. I found this odd, as it certainly *is* implemented in System.Web.Security, so instead I tried SPClaimsAuthMembershipProvider, which essentially does the same thing, but received the same result. Troubling.

After a bit of Binging around I found a lot of people experiencing the same issue but no real solutions. There were a lot of examples for creating a custom membership provider and overriding the GetUser() method but that seemed like overkill to me, especially as the AspNetSQLMembershipProvider was otherwise working just fine. Then I stumbled upon a thread on the MSDN forums in which Francois Pienaar suggested looping through the membership collection to get the user object then calling the ChangePassword() method from there. That didn't seem very logical and it certainly wasn't performance-enhancing but, lo and behold, it worked. Go figure that. The code is as simple as this:

 

string _uid = "jsmith@somewhere.com";

string _newPassword = "somepassword";


MembershipUserCollection
mc = Membership.GetAllUsers();

 

foreach (MembershipUser mu in mc)

{

if (mu.UserName == _uid)

{

mu.ChangePassword(mu.GetPassword(), _newPassword);

break;

}

}

 

Ugly but effective. Anyone with elementary coding skills can see right away what the problem with this solution is – the nasty "foreach" loop to iterate through all the users. If there are thousands of users in your membership database, this is going to be a serious performance killer. I couldn't find any way around it so I'm going with it for now but I would sure like to hear a better solution to this if somebody has one.

 

Comments

Francois

Glad I could help here.  :)
 on 2/9/2011 2:52 AM

Sure it's ugly

You can use SPIisSettings.FormsClaimsAuthenticationProvider.MembershipProvider to retirve FBA MembershipProvider and then use GetUser() of this provider to retrive MembershipUser. Better explained here http://social.technet.microsoft.com/Forums/en-US/sharepoint2010programming/thread/5e231fd0-53e1-4ae2-b2d8-702613a7b458/

Kavita
 on 2/12/2011 7:34 AM

Not a good approch

This is not a good approach at all.. It costs performance.

A good approach would be:

MembershipUser membershipUser = Membership.Providers["Provider_Name"].GetUser(userName, false);
 on 8/22/2013 9:28 AM

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This site is brought to you by BinaryWave in cooperation with Eric Shupps Eric Alan Shupps eshupps @eshupps The SharePoint Cowboy. We hope you enjoy the SharePoint-related content on topics such as performance, monitoring, administration, operations, support, business intelligence and more for SharePoint 2010, SharePoint 2013 and Office 365 created by Eric Shupps The SharePoint Cowboy. We also hope you will visit our product pages to learn more about SmartTrack, Operational Analytics for SharePoint, SharePoint monitoring, and SharePoint administration, while also discovering great offers from our partners. Please visit the blog of Eric Alan Shupps, Twitter handle @eshupps, for more information on application development, the SharePoint community, SharePoint performance, and general technology topics. Eric Shupps Eric Alan Shupps eshupps @eshupps The SharePoint Cowboy is the founder and President of BinaryWave, a leading provider of operational support solutions for SharePoint. Eric Shupps Eric Alan Shupps eshupps @eshupps The SharePoint Cowboy has worked with SharePoint Products and Technologies since 2001 as a consultant, administrator, architect, developer and trainer. He is an advisory committee member of the Dallas/Ft. Worth SharePoint Community group and participating member of user groups throughout the United Kingdom. Eric Shupps Eric Alan Shupps eshupps @eshupps The SharePoint Cowboy has authored numerous articles on SharePoint, speaks at user group meetings and conferences around the world, and publishes a popular SharePoint blog at http://www.binarywave.com/blogs/eshupps.