@ -447,10 +447,9 @@ namespace Rssdp.Infrastructure
private string GetFirstHeaderStringValue ( string headerName , HttpResponseMessage message )
private string GetFirstHeaderStringValue ( string headerName , HttpResponseMessage message )
{
{
string retVal = null ;
string retVal = null ;
IEnumerable < string > values ;
if ( message . Headers . Contains ( headerName ) )
if ( message . Headers . Contains ( headerName ) )
{
{
message . Headers . TryGetValues ( headerName , out values ) ;
message . Headers . TryGetValues ( headerName , out var values ) ;
if ( values is not null )
if ( values is not null )
{
{
retVal = values . FirstOrDefault ( ) ;
retVal = values . FirstOrDefault ( ) ;
@ -463,10 +462,9 @@ namespace Rssdp.Infrastructure
private string GetFirstHeaderStringValue ( string headerName , HttpRequestMessage message )
private string GetFirstHeaderStringValue ( string headerName , HttpRequestMessage message )
{
{
string retVal = null ;
string retVal = null ;
IEnumerable < string > values ;
if ( message . Headers . Contains ( headerName ) )
if ( message . Headers . Contains ( headerName ) )
{
{
message . Headers . TryGetValues ( headerName , out values ) ;
message . Headers . TryGetValues ( headerName , out var values ) ;
if ( values is not null )
if ( values is not null )
{
{
retVal = values . FirstOrDefault ( ) ;
retVal = values . FirstOrDefault ( ) ;
@ -479,10 +477,9 @@ namespace Rssdp.Infrastructure
private Uri GetFirstHeaderUriValue ( string headerName , HttpRequestMessage request )
private Uri GetFirstHeaderUriValue ( string headerName , HttpRequestMessage request )
{
{
string value = null ;
string value = null ;
IEnumerable < string > values ;
if ( request . Headers . Contains ( headerName ) )
if ( request . Headers . Contains ( headerName ) )
{
{
request . Headers . TryGetValues ( headerName , out values ) ;
request . Headers . TryGetValues ( headerName , out var values ) ;
if ( values is not null )
if ( values is not null )
{
{
value = values . FirstOrDefault ( ) ;
value = values . FirstOrDefault ( ) ;
@ -496,10 +493,9 @@ namespace Rssdp.Infrastructure
private Uri GetFirstHeaderUriValue ( string headerName , HttpResponseMessage response )
private Uri GetFirstHeaderUriValue ( string headerName , HttpResponseMessage response )
{
{
string value = null ;
string value = null ;
IEnumerable < string > values ;
if ( response . Headers . Contains ( headerName ) )
if ( response . Headers . Contains ( headerName ) )
{
{
response . Headers . TryGetValues ( headerName , out values ) ;
response . Headers . TryGetValues ( headerName , out var values ) ;
if ( values is not null )
if ( values is not null )
{
{
value = values . FirstOrDefault ( ) ;
value = values . FirstOrDefault ( ) ;