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LDAP result encoding

Posted By:      Posted Date: April 10, 2011    Points: 0   Category :Windows Application

Hi, I have an ASP.NET application works with Oracle SSO (Single-Sign-On) and "Oracle" LDAP. Application reads user login name (user-dn) from request header (obtained from SSO) and then reads from LDAP first name, second name and email:

DirectoryEntry entry = new DirectoryEntry(@"LDAP://ldaptest.xxx.net/...");
entry.AuthenticationType = AuthenticationTypes.None;

using (DirectorySearcher ds = new DirectorySearcher(entry))
    ds.Filter = String.Format("({0})", Request.Headers["Osso-User-Dn"]); // UserLoginName

    SearchResult result = ds.FindOne();
    if (result != null)
        if (result.Properties["givenname"].Count > 0)
        {    firstName = Convert.ToString(result.Properties["givenname"][0]); }                        

        if (result.Properties["sn"].Count > 0)
        {   secondName = Convert.ToString(result.Properties["sn"][0]); }

        if (result.Properties["mail"].Count > 0)
        { /* Email */ }

It works fine, but if the first name or second name contain some national chars (czech language), these chars are replaced by any nonsence chars. When I made a WinForm application with this code, it returns all ok. I tried many settings with no effect. Have any ide

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