Adfs Response Code in MVC C#

I Get The NameId value in Given Adfs Response using samlAssertionNew.Subject.NameID and I am not get any Attibutes. How do I Get the Attributes Values in ADFS Response.
How to I Split AttributeValue from Assertion.

<Subjectxmlns=“urn:oasis:names:tc:SAML:2.0:assertion”>t008345 <SubjectConfirmationData NotOnOrAfter=“2018-02-16T04:29:26.735Z” Recipient=“<a href=“https://examples.com/adfsauthlogin/login””>https://examples.com/adfsauthlogin/login" /><Conditions NotBefore=“2018-02-16T04:24:26.673Z” NotOnOrAfter=“2018-02-16T05:24:26.673Z"xmlns=“urn:oasis:names:tc:SAML:2.0:assertion”> <a href=“https://examples.com/adfs/ls/<AttributeStatementxmlns=“urn:oasis:names:tc:SAML:2.0:assertion”><Attribute”>https://examples.com/adfs/ls/<AttributeStatementxmlns=“urn:oasis:names:tc:SAML:2.0:assertion”><Attribute Name=” “>http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname”> User<Attribute Name=“ “>http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress”> fhtest.user@test.com<Attribute Name=” “>http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname”> FHTest

The SAMLAssertion class is part of the SAML low-level API.
We recommend using the high-level API wherever possible as it’s easier to use.
The high-level API SAMLServiceProvider.ReceiveSSO method returns the parameters either as a convenient dictionary or an array of SAMLAttribute objects depending on which overload you use.
If you’re using the low-level API, SAML attributes may be retrieved using one of the following SAMLAssertion methods:
GetAttributeStatements
GetAttributes
GetAttributeValue

[quote]
ComponentSpace - 2/16/2018
The SAMLAssertion class is part of the SAML low-level API.
We recommend using the high-level API wherever possible as it's easier to use.
The high-level API SAMLServiceProvider.ReceiveSSO method returns the parameters either as a convenient dictionary or an array of SAMLAttribute objects depending on which overload you use.
If you're using the low-level API, SAML attributes may be retrieved using one of the following SAMLAssertion methods:
GetAttributeStatements
GetAttributes
GetAttributeValue
[/quote]

how?


var givenName = samlAssertion.GetAttributeValue(“<a href=“http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname");">http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname”);
var surname = samlAssertion.GetAttributeValue(”<a href=“http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname");">http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname”);
var emailAddress = samlAssertion.GetAttributeValue("<a href=“http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress");">http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress”);