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ICredentials Interface

Provides the base authentication interface for retrieving credentials for Web client authentication.

Namespace:  System.Net
Assembly:  System (in System.dll)

public interface ICredentials

The ICredentials interface provides the GetCredential method to objects that supply network credentials to applications.

The following example illustrates how to use the ICredentials interface.

	class CredentialList : ICredentials
	{
		class CredentialInfo
		{
			public Uri uriObj;
			public String authenticationType;
			public NetworkCredential networkCredentialObj;

			public CredentialInfo(Uri uriObj, String authenticationType, NetworkCredential networkCredentialObj)
			{
				this.uriObj = uriObj;
				this.authenticationType = authenticationType;
				this.networkCredentialObj = networkCredentialObj;
			}
		}

		private ArrayList arrayListObj;

		public CredentialList()
		{
			arrayListObj = new ArrayList();
		}

		public void Add (Uri uriObj, String authenticationType, NetworkCredential credential)
		{
			// Add a 'CredentialInfo' object into a list.
			arrayListObj.Add (new CredentialInfo(uriObj, authenticationType, credential));      
		}
		// Remove the 'CredentialInfo' object from the list that matches to the given 'Uri' and 'AuthenticationType' 
		public void Remove (Uri uriObj, String authenticationType)
		{
			for(int index=0;index < arrayListObj.Count; index++)
			{
				CredentialInfo credentialInfo = (CredentialInfo)arrayListObj[index];
				if(uriObj.Equals(credentialInfo.uriObj)&& authenticationType.Equals(credentialInfo.authenticationType))
					arrayListObj.RemoveAt(index);
			}
		}
		public NetworkCredential GetCredential (Uri uriObj, String authenticationType)
		{
			for(int index=0;index < arrayListObj.Count; index++)
			{
				CredentialInfo credentialInfoObj = (CredentialInfo)arrayListObj[index];
				if(uriObj.Equals(credentialInfoObj.uriObj) && authenticationType.Equals(credentialInfoObj.authenticationType))
					return credentialInfoObj.networkCredentialObj;
			}
			return null;
		}
	};
__gc class CredentialList : public ICredentials {
   __gc class CredentialInfo {
   public:
      Uri* uriObj;
      String* authenticationType;
      NetworkCredential* networkCredentialObj;

      CredentialInfo(Uri* uriObj, String* authenticationType, NetworkCredential* networkCredentialObj) {
         this->uriObj = uriObj;
         this->authenticationType = authenticationType;
         this->networkCredentialObj = networkCredentialObj;
      }
   };

private:
   ArrayList*  arrayListObj;

public:
   CredentialList() {
      arrayListObj = new ArrayList();
   }

   void Add (Uri* uriObj, String* authenticationType, NetworkCredential* credential) {
      // Add a 'CredentialInfo' object into a list.
      arrayListObj->Add (new CredentialInfo(uriObj, authenticationType, credential));
   }

   // Remove the 'CredentialInfo' object from the list that matches to the given 'Uri' and 'AuthenticationType'
   void Remove (Uri* uriObj, String* authenticationType) {
      for (int index=0;index < arrayListObj->Count; index++) {
         CredentialInfo* credentialInfo = dynamic_cast<CredentialInfo*>(arrayListObj->Item[index]);
         if (uriObj->Equals(credentialInfo->uriObj)&& authenticationType->Equals(credentialInfo->authenticationType))
            arrayListObj->RemoveAt(index);
      }
   }

   NetworkCredential * GetCredential (Uri* uriObj, String* authenticationType) {
      for (int index=0;index < arrayListObj->Count; index++) {
         CredentialInfo* credentialInfoObj = dynamic_cast<CredentialInfo*>(arrayListObj->Item[index]);
         if (uriObj->Equals(credentialInfoObj->uriObj) && authenticationType->Equals(credentialInfoObj->authenticationType))
            return credentialInfoObj->networkCredentialObj;
      }
      return 0;
   }
};

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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