Diifrent ways to get logged in User Name & Handling Changes in Form Based Authentication User's

• To get the logged in user name you have the following methods available in SharePoint 2010 Web Part User Control:

  

• this.Page.User.Identity.Name
• HttpContext.Current.User.Identity.Name
• SPContext.Current.Web.CurrentUser.LoginName
• SPContext.Current.Web.CurrentUser.Name

   Programmatically converting login name to claim and vice versa

string userName = null;

SPClaimProviderManager mgr = SPClaimProviderManager.Local;

if (mgr != null)

{

    userName = mgr.DecodeClaim(SPContext.Current.Web.CurrentUser.LoginName).Value;

}




Claims back and forth

string userName = null;

SPClaimProviderManager mgr = SPClaimProviderManager.Local;

if (mgr != null)

{

    SPClaim claim = new SPClaim(SPClaimTypes.UserLogonName, "myuser", "http://www.w3.org/2001/XMLSchema#string", SPOriginalIssuers.Format(SPOriginalIssuerType.Forms, "myprovider"));

    userName = mgr.EncodeClaim(claim);

}