Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Security / Policy / GACMembershipCondition.cs / 1 / GACMembershipCondition.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // GacMembershipCondition.cs // // Implementation of membership condition for being in the Gac // namespace System.Security.Policy { using System; using System.Collections; using System.Globalization; [Serializable] [System.Runtime.InteropServices.ComVisible(true)] sealed public class GacMembershipCondition : IMembershipCondition, IConstantMembershipCondition { //------------------------------------------------------ // // PUBLIC CONSTRUCTORS // //----------------------------------------------------- public GacMembershipCondition() { } //----------------------------------------------------- // // IMEMBERSHIPCONDITION IMPLEMENTATION // //----------------------------------------------------- public bool Check( Evidence evidence ) { if (evidence == null) return false; IEnumerator enumerator = evidence.GetHostEnumerator(); while (enumerator.MoveNext()) { Object obj = enumerator.Current; if (obj is GacInstalled) return true; } return false; } public IMembershipCondition Copy() { return new GacMembershipCondition(); } public SecurityElement ToXml() { return ToXml( null ); } public void FromXml( SecurityElement e ) { FromXml( e, null ); } public SecurityElement ToXml( PolicyLevel level ) { SecurityElement root = new SecurityElement( "IMembershipCondition" ); System.Security.Util.XMLUtil.AddClassAttribute( root, this.GetType(), this.GetType().FullName ); root.AddAttribute( "version", "1" ); return root; } public void FromXml( SecurityElement e, PolicyLevel level ) { if (e == null) throw new ArgumentNullException("e"); if (!e.Tag.Equals( "IMembershipCondition" )) throw new ArgumentException( Environment.GetResourceString( "Argument_MembershipConditionElement" ) ); } public override bool Equals( Object o ) { GacMembershipCondition that = (o as GacMembershipCondition); if (that != null) return true; return false; } public override int GetHashCode() { return 0; } public override String ToString() { return Environment.GetResourceString( "GAC_ToString" ); } } }
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