CredentialCache インスタンスを反復処理できる列挙子を返します。
Public Overridable Function GetEnumerator() As IEnumerator _ Implements IEnumerable.GetEnumerator
[C#]
public virtual IEnumerator GetEnumerator();
[C++]
public: virtual IEnumerator* GetEnumerator();
[JScript]
public function GetEnumerator() : IEnumerator;
戻り値
CredentialCache の IEnumerator 。
実装
使用例
[Visual Basic, C#, C++] GetEnumerator メソッドを使用して、 CredentialCache インスタンスを反復処理できる列挙子を返す例を次に示します。
Try
Dim myCredentialCache As New CredentialCache()
' Dummy Credentials used here.
myCredentialCache.Add(New Uri("https://microsoft.com/"), "Basic", New NetworkCredential("user1", "passwd1", "domain1"))
myCredentialCache.Add(New Uri("https://msdn.com/"), "Basic", New NetworkCredential("user2", "passwd2", "domain2"))
myCredentialCache.Add(New Uri(url), "Basic", New NetworkCredential(userName, password, domainName))
Dim myWebRequest As WebRequest = WebRequest.Create(url) 'Creates a webrequest with the specified url
myWebRequest.Credentials = myCredentialCache
Dim listCredentials As IEnumerator = myCredentialCache.GetEnumerator()
Console.WriteLine("Displaying credentials stored in CredentialCache: ")
While listCredentials.MoveNext()
Display(CType(listCredentials.Current, NetworkCredential))
End While
Console.WriteLine(ControlChars.Cr + "Now Displaying using 'foreach': ")
' Can use foreach with CredentialCache(Since GetEnumerator method of IEnumerable has been implemented by 'CredentialCache' class.
Dim credential As NetworkCredential
For Each credential In myCredentialCache
Display(credential)
Next credential
Dim myWebResponse As WebResponse = myWebRequest.GetResponse() 'Sends the request and waits for response.
' Process the response here
Console.WriteLine(ControlChars.Cr + "Response Received.")
myWebResponse.Close()
Catch e As WebException
If Not (e.Response Is Nothing) Then
Console.WriteLine(ControlChars.Lf + ControlChars.Cr + "Failed to obtain a response. The following error occured : {0}", CType(e.Response, HttpWebResponse).StatusDescription)
Else
Console.WriteLine(ControlChars.Lf + ControlChars.Cr + "Failed to obtain a response. The following error occured : {0}", e.Status)
End If
Catch e As Exception
Console.WriteLine(ControlChars.Cr + "The following exception was raised : {0}", e.Message)
End Try
End Sub 'GetPage
Public Shared Sub Display(credential As NetworkCredential)
Console.WriteLine(ControlChars.Cr + "Username : {0} ,Password : {1} ,Domain : {2}", credential.UserName, credential.Password, credential.Domain)
End Sub 'Display
[C#]
public static void GetPage(string url,string userName,string password,string domainName)
{
try
{
CredentialCache myCredentialCache = new CredentialCache();
// Dummy Credentials used here.
myCredentialCache.Add(new Uri("https://microsoft.com/"),"Basic", new NetworkCredential("user1","passwd1","domain1"));
myCredentialCache.Add(new Uri("https://msdn.com/"),"Basic", new NetworkCredential("user2","passwd2","domain2"));
myCredentialCache.Add(new Uri(url),"Basic", new NetworkCredential(userName,password,domainName));
// Creates a webrequest with the specified url.
WebRequest myWebRequest = WebRequest.Create(url);
myWebRequest.Credentials = myCredentialCache;
IEnumerator listCredentials = myCredentialCache.GetEnumerator();
Console.WriteLine("\nDisplaying credentials stored in CredentialCache: ");
while(listCredentials.MoveNext())
{
Display((NetworkCredential)listCredentials.Current);
}
Console.WriteLine("\nNow Displaying the same using 'foreach' : ");
// Can use foreach with CredentialCache(Since GetEnumerator function of IEnumerable has been implemented by 'CredentialCache' class.
foreach(NetworkCredential credential in myCredentialCache)
Display(credential);
// Send the request and waits for response.
WebResponse myWebResponse = myWebRequest.GetResponse();
// Process response here.
Console.WriteLine("\nResponse Received.");
myWebResponse.Close();
}
catch(WebException e)
{
if (e.Response != null)
Console.WriteLine("\r\nFailed to obtain a response. The following error occured : {0}",((HttpWebResponse)(e.Response)).StatusDescription);
else
Console.WriteLine("\r\nFailed to obtain a response. The following error occured : {0}",e.Status);
}
catch(Exception e)
{
Console.WriteLine("\nThe following exception was raised : {0}",e.Message);
}
}
public static void Display(NetworkCredential credential)
{
Console.WriteLine("\n\tUsername : {0} ,Password : {1} ,Domain : {2}",credential.UserName,credential.Password,credential.Domain);
}
[C++]
void Display(NetworkCredential* credential)
{
Console::WriteLine(S"\n\tUsername : {0} , Password : {1} , Domain : {2}",
credential->UserName, credential->Password, credential->Domain);
}
void GetPage(String* url, String* userName, String* password, String* domainName)
{
try
{
CredentialCache* myCredentialCache = new CredentialCache();
// Dummy Credentials used here.
myCredentialCache->Add(new Uri(S"https://microsoft.com/"), S"Basic",
new NetworkCredential(S"user1", S"passwd1", S"domain1"));
myCredentialCache->Add(new Uri(S"https://msdn.com/"), S"Basic",
new NetworkCredential(S"user2", S"passwd2", S"domain2"));
myCredentialCache->Add(new Uri(url), S"Basic", new NetworkCredential(userName, password, domainName));
// Creates a webrequest with the specified url.
WebRequest* myWebRequest = WebRequest::Create(url);
myWebRequest->Credentials = myCredentialCache;
IEnumerator* listCredentials = myCredentialCache->GetEnumerator();
Console::WriteLine(S"\nDisplaying credentials stored in CredentialCache: ");
while(listCredentials->MoveNext())
Display(dynamic_cast<NetworkCredential*>(listCredentials->Current));
Console::WriteLine(S"\nNow Displaying the same using 'foreach' : ");
// Can use foreach with CredentialCache(Since GetEnumerator function of IEnumerable* has been implemented by 'CredentialCache' class.
IEnumerator* myEnum = myCredentialCache->GetEnumerator();
while (myEnum->MoveNext())
{
NetworkCredential* credential = __try_cast<NetworkCredential*>(myEnum->Current);
Display(credential);
}
// Send the request and waits for response.
WebResponse* myWebResponse = myWebRequest->GetResponse();
// Process response here.
Console::WriteLine(S"\nResponse Received.");
myWebResponse->Close();
}
catch (WebException* e)
{
if (e->Response != 0)
Console::WriteLine(S"\r\nFailed to obtain a response. The following error occured : {0}",
(dynamic_cast<HttpWebResponse*>(e->Response))->StatusDescription);
else
Console::WriteLine(S"\r\nFailed to obtain a response. The following error occured : {0}",
__box( e->Status));
}
catch (Exception* e)
{
Console::WriteLine(S"\nThe following exception was raised : {0}",
e->Message);
}
};
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をクリックします。
必要条件
プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, Common Language Infrastructure (CLI) Standard