ResourcePermissionBaseEntry Class
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ResourcePermissionBaseEntry Class

 

Defines the smallest unit of a code access security permission set.

Namespace:   System.Security.Permissions
Assembly:  System (in System.dll)

System.Object
  System.Security.Permissions.ResourcePermissionBaseEntry

[SerializableAttribute]
public class ResourcePermissionBaseEntry

NameDescription
System_CAPS_pubmethodResourcePermissionBaseEntry()

Initializes a new instance of the ResourcePermissionBaseEntry class.

System_CAPS_pubmethodResourcePermissionBaseEntry(Int32, String[])

Initializes a new instance of the ResourcePermissionBaseEntry class with the specified permission access and permission access path.

NameDescription
System_CAPS_pubpropertyPermissionAccess

Gets an integer representation of the access level enumeration value.

System_CAPS_pubpropertyPermissionAccessPath

Gets an array of strings that identify the resource you are protecting.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

The following example inherits from the ResourcePermissionBase class. 4 kinds of constructors are implemented. The example also provides an implementation of a class called MailslotPermissionEntry. The PermissionAccessType property is then privately set to the type of MailslotPermissionEntry. The TagNames property is set privately to "Name" and "Machine".

using System;        
using System.Security.Permissions;  
using System.Collections;

[Serializable()]
public class MailslotPermission: ResourcePermissionBase
{

	private ArrayList innerCollection;

	public MailslotPermission() 
	{
		SetNames();
	}                                                                

	public MailslotPermission(PermissionState state):base(state)
	{
		SetNames();
	}  

	public MailslotPermission(MailslotPermissionAccess permissionAccess, string name, string machineName)
	{
		SetNames();
		this.AddPermissionAccess(new MailslotPermissionEntry(permissionAccess, name, machineName));              
	}

	public MailslotPermission(MailslotPermissionEntry[] permissionAccessEntries) 
	{
		SetNames();
		if (permissionAccessEntries == null)
			throw new ArgumentNullException("permissionAccessEntries");

		for (int index = 0; index < permissionAccessEntries.Length; ++index)
			this.AddPermissionAccess(permissionAccessEntries[index]);                          
	}

	public ArrayList PermissionEntries 
	{
		get 
		{
			if (this.innerCollection == null)                     
				this.innerCollection = new ArrayList();
			this.innerCollection.InsertRange(0,base.GetPermissionEntries()); 

			return this.innerCollection;                                                               
		}
	}

	internal void AddPermissionAccess(MailslotPermissionEntry entry) 
	{
		base.AddPermissionAccess(entry.GetBaseEntry());
	}

	internal new void Clear() 
	{
		base.Clear();
	}

	internal void RemovePermissionAccess(MailslotPermissionEntry entry) 
	{
		base.RemovePermissionAccess(entry.GetBaseEntry());
	}

	private void SetNames() 
	{
		this.PermissionAccessType = typeof(MailslotPermissionAccess);
		this.TagNames = new string[]{"Name","Machine"};
	}                                
}

[Flags]         
public enum MailslotPermissionAccess 
{
	None = 0,
	Send = 1 << 1,
	Receive = 1 << 2 | Send,
} 

[Serializable()]     
public class MailslotPermissionEntry 
{
	private string name;
	private string machineName;
	private MailslotPermissionAccess permissionAccess;

	public MailslotPermissionEntry(MailslotPermissionAccess permissionAccess, string name, string machineName) 
	{
		this.permissionAccess = permissionAccess;
		this.name = name;
		this.machineName = machineName;
	}  

	internal MailslotPermissionEntry(ResourcePermissionBaseEntry baseEntry) 
	{
		this.permissionAccess = (MailslotPermissionAccess)baseEntry.PermissionAccess;
		this.name = baseEntry.PermissionAccessPath[0]; 
		this.machineName = baseEntry.PermissionAccessPath[1]; 
	}

	public string Name 
	{
		get 
		{                
			return this.name;                
		}                        
	}

	public string MachineName 
	{
		get 
		{                
			return this.machineName;                
		}                        
	}

	public MailslotPermissionAccess PermissionAccess 
	{
		get 
		{
			return this.permissionAccess;
		}                        
	}      

	internal ResourcePermissionBaseEntry GetBaseEntry() 
	{
		ResourcePermissionBaseEntry baseEntry = new ResourcePermissionBaseEntry((int)this.PermissionAccess, new string[] {this.Name,this.MachineName});            
		return baseEntry;
	}

}

.NET Framework
Available since 1.1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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