CallContext.GetHeaders Methode

Definition

Namespace:

System.Runtime.Remoting.Messaging

Assembly:

mscorlib.dll

Gibt die Header zurück, die zusammen mit dem Methodenaufruf gesendet werden.

public:
 static cli::array <System::Runtime::Remoting::Messaging::Header ^> ^ GetHeaders();

public static System.Runtime.Remoting.Messaging.Header[] GetHeaders ();

[System.Security.SecurityCritical]
public static System.Runtime.Remoting.Messaging.Header[] GetHeaders ();

static member GetHeaders : unit -> System.Runtime.Remoting.Messaging.Header[]

[<System.Security.SecurityCritical>]
static member GetHeaders : unit -> System.Runtime.Remoting.Messaging.Header[]

Public Shared Function GetHeaders () As Header()

Gibt zurück

Header[]

Die Header, die zusammen mit dem Methodenaufruf gesendet werden.

Attribute

SecurityCriticalAttribute

Ausnahmen

SecurityException

Der direkte Aufrufer verfügt nicht über die Berechtigung für die Infrastruktur.

Beispiele

Im folgenden Codebeispiel werden Header an eine Remotemethode gesendet und der Inhalt dieser Header an die Konsole gedruckt, wenn die Remotemethode zurückgegeben wird.

// Array of Headers with name and values initialized.
array<Header^>^ myArrSetHeader = { gcnew Header( "Header0","CallContextHeader0" ),
   gcnew Header( "Header1","CallContextHeader1" ) };

// Pass the Header Array with method call.
// Header will be set in the method by'CallContext::SetHeaders' method in remote Object*.
Console::WriteLine( "Remote HeaderMethod output is {0}",
   myService->HeaderMethod( "CallContextHeader", myArrSetHeader ) );

array<Header^>^ myArrGetHeader;
// Get Header Array.
myArrGetHeader = CallContext::GetHeaders();
if ( nullptr == myArrGetHeader )
{
   Console::WriteLine( "CallContext::GetHeaders Failed" );
}
else
{
   Console::WriteLine( "Headers:" );
}

for each ( Header^ myHeader in myArrGetHeader )
{
   Console::WriteLine( "Value in Header '{0}' is '{1}'.",
      myHeader->Name, myHeader->Value );
}

// Array of Headers with name and values initialized.
Header[] myArrSetHeader = {new Header("Header0","CallContextHeader0"),
                             new Header("Header1","CallContextHeader1")};

// Pass the Header Array with method call.
// Header will be set in the method by'CallContext.SetHeaders' method in remote object.

Console.WriteLine("Remote HeaderMethod output is " +
                        myService.HeaderMethod("CallContextHeader",myArrSetHeader));

Header[] myArrGetHeader;
// Get Header Array.
myArrGetHeader=CallContext.GetHeaders();
if (null == myArrGetHeader)
   Console.WriteLine("CallContext.GetHeaders Failed");
else
   Console.WriteLine("Headers:");
foreach(Header myHeader in myArrGetHeader)
{
   Console.WriteLine("Value in Header '{0}' is '{1}'.",myHeader.Name,myHeader.Value);
}

' Array of Headers with name and values initialized.
Dim myArrSetHeader As Header() =  {New Header("Header0", "CallContextHeader0"), _
                                          New Header("Header1", "CallContextHeader1")}

' Pass the Header Array with method call.
' Header will be set in the method by'CallContext.SetHeaders' method in remote object.

Console.WriteLine("Remote HeaderMethod output is " _
                     + myService.HeaderMethod("CallContextHeader", myArrSetHeader))

Dim myArrGetHeader() As Header
' Get Header Array.

myArrGetHeader = CallContext.GetHeaders()
If myArrGetHeader Is Nothing Then
   Console.WriteLine("CallContext.GetHeaders Failed")
Else
   Console.WriteLine("Headers:")
End If

Dim myHeader As Header
For each myHeader in myArrGetHeader
   Console.WriteLine("Value in Header '{0}' is '{1}'.",myHeader.Name,myHeader.Value)
Next