Sharepoint Infopath getting logged in username in Forms Authentication

If you use Claims Based Auth., you cannot get a proper username with the command ın Infopath:


this.Application.User.LoginName

You ll get something like :
i:0#.|PROVIDERNAME|Username

You can replace the string but it 's not a proper way to do it.

You can use 2 methods:

1.  SPUser user = SPContext.Current.Web.CurrentUser;
user.userName would get you the proper name

or

2.

string userName = null;
SPClaimProviderManager mgr = SPClaimProviderManager.Local;
if (mgr != null)
{
       userName = mgr.DecodeClaim(SPContext.Current.Web.CurrentUser.LoginName).Value;
}

Sharepoint 2010 - Constantly prompting Username Password in local server.

This problem was also bugging me in Dynamics CRM.

İf you would have a server and try to access it inside, it constantly prompts you username and password.

In order to be able to solve this issue you need to add a new registry key

Run - regedit

Go to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa


Create a DWORD (32bit) key in the folder, named as:
DisableLoopbackCheck


Set the value as:
1


Close the regisrty window. By default (and best case) it does not need any restart of iis, explorer or server.


Source:
http://www.jeremytaylor.net/2010/05/24/sharepoint-disable-loopback-check-disableloopbackcheck-dword-in-registry/