Getting error: The name 'Profile' does not exist in the current context in razor view

I am trying to access Profile object properties in the razor view (asp.net mvc 3).
I have set the following the web.config file:

<profile defaultProvider="DemoProfileProvider" enabled="true" inherits="Demo.Common.Web.TestProfile">
      <providers>
        <clear />
        <add name="DemoProfileProvider" type="Demo.Common.Web.TestProfile" />
      </providers>
      <properties>
        <add name="FirstName" />
        <add name="LastName" />
        <add name="UserType" />
      </properties>
    </profile>

	public class ProfileCommon : TestProfile
{
    public ProfileCommon();

    public virtual string FirstName { get; set; }
    public virtual string LastName { get; set; }
    public virtual string UserType { get; set; }

    public virtual ProfileCommon GetProfile(string username);
}

I am setting the profile properties in the Global.asax.cs file:
void WSFederationAuthenticationModule_SignedIn(object sender, EventArgs e)

{
                    var profile = TestProfile.GetProfile(HttpContext.Current.User.Identity.Name);
                    if (profile.ProfileGuid == Guid.Empty)
                        profile.ProfileGuid = Guid.NewGuid();
                    if (string.IsNullOrEmpty(profile.Language))
                        profile.Language = System.Threading.Thread.CurrentThread.CurrentUICulture.TwoLetterISOLanguageName;
                    //Set FirstName and LastName,UserType in Profile
                    if(((IClaimsPrincipal)Thread.CurrentPrincipal).Identities[0].Claims.Exists(c => c.ClaimType == "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname"))
                        profile.SetPropertyValue("FirstName", ((IClaimsPrincipal)Thread.CurrentPrincipal).Identities[0].Claims.Single(c => c.ClaimType == "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname").Value);
                    if(((IClaimsPrincipal)Thread.CurrentPrincipal).Identities[0].Claims.Exists(c => c.ClaimType == "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname"))
                        profile.SetPropertyValue("LastName", ((IClaimsPrincipal)Thread.CurrentPrincipal).Identities[0].Claims.Single(c => c.ClaimType == "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname").Value);
                    if (((IClaimsPrincipal)Thread.CurrentPrincipal).Identities[0].Claims.Exists(c => c.ClaimType == "http://schemas.deloitte.com/ws/2011/05/identity/claims/usertype"))
                        profile.SetPropertyValue("UserType", ((IClaimsPrincipal)Thread.CurrentPrincipal).Identities[0].Claims.Single(c => c.ClaimType == "http://schemas.deloitte.com/ws/2011/05/identity/claims/usertype").Value);
                    profile.Save();
                
        } 

Now I am trying to access Profile properties like FirstName and LastName in the _Layout.cshtml but it throwing an error: The name 'Profile' does not exist in the current context

@if (Request.IsAuthenticated)
                {
                    <br />
                    if ((!string.IsNullOrWhiteSpace(Profile.FirstName) && (!string.IsNullOrWhiteSpace(Profile.LastName))))
                    {
                    <b>@Profile.FirstName + " " + @Profile.LastName</b>
                    }
                    else
                    {
                    <b>@Html.ViewContext.HttpContext.User.Identity.Name</b>
                    }                   
                    
                } 

Can any one help me to resolve the above issue?

santosh kumar patro