xml.cs

不错的人事管理系统

using System;
using System.IO;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.XPath;
using System.Web.UI;
using System.Web.Caching;

namespace System.Web.UI.WebControls
{
	/// <summary>
	/// Summary description for Xml.
	/// </summary>
	public class Xml : Control
	{
		private const string identityXslStr = "<xsl:stylesheet version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform'><xsl:template match=\"/\"> <xsl:copy-of select=\".\"/> </xsl:template> </xsl:st"    + "ylesheet>";
		private System.Xml.XmlDocument _document;
		private System.Xml.XPath.XPathDocument _xpathDocument;
		private System.Xml.Xsl.XslTransform _transform;
		private System.Xml.Xsl.XsltArgumentList _transformArgumentList;
		private string _documentContent;
		private string _documentSource;
		private string _transformSource;
		private static System.Xml.Xsl.XslTransform _identityTransform;

		static Xml() 
		{
			XmlTextReader local0;

			local0 = new XmlTextReader(new StringReader("<xsl:stylesheet version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform'><xsl:template match=\"/\"> <xsl:copy-of select=\".\"/> </xsl:template> </xsl:stylesheet>"));
			Xml._identityTransform = new XslTransform();
			Xml._identityTransform.Load(local0);
		}

		public Xml() : base() 
		{
		}
		protected virtual void AddParsedSubObject(object obj) 
		{
			if (obj as LiteralControl != null) 
			{
				this.DocumentContent = ((LiteralControl) obj).Text;
				return;
			}
			throw new HttpException(System.Web.HttpRuntime.FormatResourceString("Cannot_Have_Children_Of_Type", "Xml", obj.GetType().Name.ToString()));
		}

		private void LoadTransformFromSource() 
		{
			string local0;
			CacheInternal local1;
			string local2;
			CacheDependency local3;

			if (this._transform != null)
				return;
			if (this._transformSource == null || this._transformSource.Length == 0)
				return;
			local0 = this.MapPathSecure(this._transformSource);
			local1 = HttpRuntime.CacheInternal;
			local2 = "System.Web.UI.WebControls:" + local0;
			this._transform = (XslTransform) local1.Get(local2);
			if (this._transform == null) 
			{
				local3 = new CacheDependency(local0);
				try 
				{
					this._transform = new XslTransform();
					this._transform.Load(local0);
					local1.Insert(local2, this._transform, local3);
				}
				finally 
				{
					if (local3 == null)
					{
//						goto i-1;
					}
					local3.Dispose();
				}
			}
		}

		private void LoadXmlDocument() 
		{
			string local0;
			CacheInternal local1;
			string local2;
			CacheDependency local3;
			XmlDocument local4;

			if (this._documentContent != null && this._documentContent.Length > 0) 
			{
				this._document = new XmlDocument();
				this._document.LoadXml(this._documentContent);
				return;
			}
			if (this._documentSource == null || this._documentSource.Length == 0)
				return;
			local0 = this.MapPathSecure(this._documentSource);
			local1 = HttpRuntime.CacheInternal;
			local2 = "System.Web.UI.WebControls.LoadXmlDocument:" + local0;
			this._document = (XmlDocument) local1.Get(local2);
			if (this._document == null) 
			{
				local3 = new CacheDependency(local0);
				try 
				{
					this._document = new XmlDocument();
					this._document.Load(local0);
					local1.Insert(local2, this._document, local3);
				}
				finally 
				{
					if (local3 == null)
					{
//						goto i-1;
					}
					local3.Dispose();
				}
			}
			lock (this._document)
				this._document = (XmlDocument) this._document.CloneNode(true);
		}

		private void LoadXPathDocument() 
		{
			StringReader local0;
			string local1;
			CacheInternal local2;
			string local3;
			CacheDependency local4;

			if (this._documentContent != null && this._documentContent.Length > 0) 
			{
				local0 = new StringReader(this._documentContent);
				this._xpathDocument = new XPathDocument(local0);
				return;
			}
			if (this._documentSource == null || this._documentSource.Length == 0)
				return;
			local1 = this.MapPathSecure(this._documentSource);
			local2 = HttpRuntime.CacheInternal;
			local3 = "System.Web.UI.WebControls.LoadXPathDocument:" + local1;
			this._xpathDocument = (XPathDocument) local2.Get(local3);
			if (this._xpathDocument == null) 
			{
				local4 = new CacheDependency(local1);
				try 
				{
					this._xpathDocument = new XPathDocument(local1);
					local2.Insert(local3, this._xpathDocument, local4);
				}
				finally 
				{
					if (local4 == null)
					{
//						goto i-1;
					}
					local4.Dispose();
				}
			}
		}

		protected virtual void Render(HtmlTextWriter output) 
		{
			if (this._document == null)
				this.LoadXPathDocument();
			this.LoadTransformFromSource();
			if (this._document == null && this._xpathDocument == null)
				return;
			if (this._transform == null)
				this._transform = Xml._identityTransform;
			if (this._document != null) 
			{
				this.Transform.Transform(this._document, this._transformArgumentList, output);
				return;
			}
			this.Transform.Transform(this._xpathDocument, this._transformArgumentList, output);
		}

		public XmlDocument Document 
		{
			get
			{
				if (this._document == null)
					this.LoadXmlDocument();
				return this._document;
			}
			set
			{
				this.DocumentSource = null;
				this._xpathDocument = null;
				this._documentContent = null;
				this._document = value;
			}
		}

		public string DocumentContent 
		{
			get
			{
				return System.String.Empty;
			}
			set
			{
				this._document = null;
				this._xpathDocument = null;
				this._documentContent = value;
			}
		}

		public string DocumentSource 
		{
			get
			{
				if (this._documentSource != null)
					return this._documentSource;
				return System.String.Empty;
			}
			set
			{
				this._document = null;
				this._xpathDocument = null;
				this._documentContent = null;
				this._documentSource = value;
			}
		}

		public XslTransform Transform 
		{
			get
			{
				return this._transform;
			}
			set
			{
				this.TransformSource = null;
				this._transform = value;
			}
		}

		public XsltArgumentList TransformArgumentList 
		{
			get
			{
				return this._transformArgumentList;
			}
			set
			{
				this._transformArgumentList = value;
			}
		}

		public string TransformSource 
		{
			get
			{
				if (this._transformSource != null)
					return this._transformSource;
				return System.String.Empty;
			}
			set
			{
				this._transform = null;
				this._transformSource = value;
			}
		}
	}
}