AttributeList.cs
上传用户:zhangkuixh
上传日期:2013-09-30
资源大小:5473k
文件大小:3k
- using System;
- using System.Collections;
- namespace XunLong.ModelUserClassLibrary
- {
- /// <summary>
- /// The AttributeList class is used to store list of
- /// Attribute classes.
- ///
- /// This spider is copyright 2003 by Jeff Heaton. However, it is
- /// released under a Limited GNU Public License (LGPL). You may
- /// use it freely in your own programs. For the latest version visit
- /// http://www.jeffheaton.com.
- ///
- /// </summary>
- ///
- public class AttributeList:Attribute
- {
- /// <summary>
- /// An internally used Vector. This vector contains
- /// the entire list of attributes.
- /// </summary>
- protected ArrayList m_list;
-
- /// <summary>
- /// Make an exact copy of this object using the cloneable interface.
- /// </summary>
- /// <returns>A new object that is a clone of the specified object.</returns>
- public override Object Clone()
- {
- AttributeList rtn = new AttributeList();
- for ( int i=0;i<m_list.Count;i++ )
- rtn.Add( (Attribute)this[i].Clone() );
- return rtn;
- }
-
- /// <summary>
- /// Create a new, empty, attribute list.
- /// </summary>
- public AttributeList():base("","")
- {
- m_list = new ArrayList();
- }
- /// <summary>
- /// Add the specified attribute to the list of attributes.
- /// </summary>
- /// <param name="a">An attribute to add to this AttributeList.</param>
- public void Add(Attribute a)
- {
- m_list.Add(a);
- }
- /// <summary>
- /// Clear all attributes from this AttributeList and return it
- /// to a empty state.
- /// </summary>
- public void Clear()
- {
- m_list.Clear();
- }
- /// <summary>
- /// Returns true of this AttributeList is empty, with no attributes.
- /// </summary>
- /// <returns>True if this AttributeList is empty, false otherwise.</returns>
- public bool IsEmpty()
- {
- return( m_list.Count<=0);
- }
- /// <summary>
- /// If there is already an attribute with the specified name,
- /// then it will have its value changed to match the specified value.
- /// If there is no Attribute with the specified name, then one will
- /// be created. This method is case-insensitive.
- /// </summary>
- /// <param name="name">The name of the Attribute to edit or create. Case-insensitive.</param>
- /// <param name="value">The value to be held in this attribute.</param>
- public void Set(string name,string value)
- {
- if ( name==null )
- return;
- if ( value==null )
- value="";
- Attribute a = this[name];
- if ( a==null )
- {
- a = new Attribute(name,value);
- Add(a);
- }
- else
- a.Value = value;
- }
- /// <summary>
- /// How many attributes are in this AttributeList
- /// </summary>
- public int Count
- {
- get
- {
- return m_list.Count;
- }
- }
- /// <summary>
- /// A list of the attributes in this AttributeList
- /// </summary>
- public ArrayList List
- {
- get
- {
- return m_list;
- }
- }
- /// <summary>
- /// Access the individual attributes
- /// </summary>
- public Attribute this[int index]
- {
- get
- {
- if ( index<m_list.Count )
- return(Attribute)m_list[index];
- else
- return null;
- }
- }
- /// <summary>
- /// Access the individual attributes by name.
- /// </summary>
- public Attribute this[string index]
- {
- get
- {
- int i=0;
- while ( this[i]!=null )
- {
- if ( this[i].Name.ToLower().Equals( (index.ToLower()) ))
- return this[i];
- i++;
- }
- return null;
- }
- }
- }
- }