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ICredentials Interface

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

Namespace:  System.Net
Assemblies:   System (in System.dll)
  System.Net.Primitives (in System.Net.Primitives.dll)

public interface ICredentials

The ICredentials type exposes the following members.

  NameDescription
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsGetCredentialReturns a NetworkCredential object that is associated with the specified URI, and authentication type.
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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;
		}
	};

.NET Framework

Supported in: 4.5.3, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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