listitem.cs

不错的人事管理系统

using System;

namespace System.Web.UI.WebControls
{
	/// <summary>
	/// Summary description for ListItem.
	/// </summary>
	public class ListItem : System.Web.UI.IStateManager, System.Web.UI.IAttributeAccessor, System.Web.UI.IParserAccessor
	{
		//TODO:literal
		/*
		private static literal int  MARKED = 1;
		private static literal int SELECTED = 0;
		private static literal int TEXTISDIRTY = 2;
		private static literal int VALUEISDIRTY = 3;
		*/

		private System.Web.UI.AttributeCollection m_attributes;
		private System.Collections.BitArray misc;
		private string m_text;
		private string m_value;

		public ListItem() : this(null, null)
		{
		}

		public ListItem(string itemtext) : this(itemtext, null)
		{
		}

		public ListItem(string itemtext, string itemvalue)
		{
			this.m_text = itemtext;
			this.m_value = itemvalue;
			this.misc = new System.Collections.BitArray(4);
		}

		public override bool Equals(object obj)
		{
			System.Web.UI.WebControls.ListItem V_0;

			V_0 = obj as System.Web.UI.WebControls.ListItem;

			if(V_0 != null)
			{
				if(this.Value.Equals(V_0.Value))
				{
					return this.Text.Equals(V_0.Text);
				}
			}

			return(false);
		}

		public static ListItem FromString(string s)
		{
			return(new ListItem(s));
		}

		public override int GetHashCode()
		{
			return base.GetHashCode();
		}

		internal void LoadViewState(object state)
		{
			System.Web.UI.Pair V_0;

			if(state != null)
			{
				if(state is System.Web.UI.Pair)
				{
					V_0 = state as System.Web.UI.Pair;

					if(V_0.First != null)
					{
						this.Text = (string)V_0.First;
					}
					this.Value = (string)V_0.Second;
					return;
				}

				this.Text = (string)state;
			}
		}

		internal object SaveViewSate()
		{
			if(this.misc[2] && this.misc[3])
			{
				return new System.Web.UI.Pair(this.Text, this.Value);
			}

			else if(this.misc[2])
			{
				return(this.Text);
			}

			else if(this.misc[3])
			{
				return new System.Web.UI.Pair(null, this.Value);
			}
			else
			{
				return(null);
			}
		}

		string System.Web.UI.IAttributeAccessor.GetAttribute(string name)
		{
			return(this.Attributes[name]);
		}

		void  System.Web.UI.IAttributeAccessor.SetAttribute(string name, string value)
		{
			this.Attributes[name] = value;
		}

		void  System.Web.UI.IParserAccessor.AddParsedSubObject(object obj)
		{
			if(obj is System.Web.UI.LiteralControl)
			{
				this.Text = ((System.Web.UI.LiteralControl)obj).Text;
				return;
			}

			if(obj is System.Web.UI.LiteralControl)
			{
				throw new System.Web.HttpException(
					System.Web.HttpRuntime.FormatResourceString(
						"Control_Cannot_Databind",
						"ListItem"
						)
					);
			}

			throw new System.Web.HttpException(
				System.Web.HttpRuntime.FormatResourceString(
					"Cannot_Have_Children_Of_Type",
					"ListItem", 
					obj.GetType().Name
					)
				);
		}

		void  System.Web.UI.IStateManager.LoadViewState(object state)
		{
			this.LoadViewState(state);
		}

		void  System.Web.UI.IStateManager.TrackViewState()
		{
			this.TrackViewState();
		}

		bool System.Web.UI.IStateManager.IsTrackingViewState
		{
			get
			{
				return(this.misc[1]);
			}
		}

		object  System.Web.UI.IStateManager.SaveViewState()
		{
			return(this.SaveViewSate());
		}

		internal void TrackViewState()
		{
			this.misc[1] = true;
		}

		public override string ToString()
		{
			return(this.Text);
		}

		internal bool Dirty
		{
			get
			{
				if(!(this.misc[2]))
				{
					return(this.misc[3]);
				}
				return(true);
			}
			set
			{
				this.misc[2] = true;
				this.misc[3] = true;
			}
		}

		public bool Selected
		{
			get
			{
				return(this.misc[0]);
			}
			set
			{
				this.misc[0] = value;
			}
		}
	

		public string Value
		{
			get
			{
				if(this.m_value != null)
				{
					return(this.m_value);
				}
				if(this.m_text != null)
				{
					return(this.m_text);
				}

				return(string.Empty);
			}
			set
			{
				this.m_value = value;

				if(((System.Web.UI.IStateManager)this).IsTrackingViewState)
				{
					this.misc[3] = true;
				}
			}
		}


		public string Text
		{
			get
			{
				if(this.m_text != null)
				{
					return(this.m_text);
				}
				if(this.m_value != null)
				{
					return(this.m_value);
				}

				return(string.Empty);
			}
			set
			{
				this.m_text = value;

				if(((System.Web.UI.IStateManager)this).IsTrackingViewState)
				{
					this.misc[2] = true;
				}
			}
		}

		public System.Web.UI.AttributeCollection Attributes
		{
			get
			{
				if(this.m_attributes == null)
				{
					this.m_attributes = new System.Web.UI.AttributeCollection(new System.Web.UI.StateBag(true));
				}

				return(this.m_attributes);
			}
		}

	}
}