一种从数据库利用ｘｍｌ创建树型目录的方法(C#)(二)

一、ＵＩ层处理：

#region 重新生成手机服务栏目列表XML

private void CreateMetoneTree()

{

 

        xmlDoc_Metone = new XmlDocument();

             

       new Town.Com.MobileServiceTypeCollection().GetMetoneTree(out ds);

       //生成根节点

       XmlElement treeContentElement = xmlDoc_Metone.CreateElement("NewDataSet");

       xmlDoc_Metone.AppendChild(treeContentElement);

       //递归生成频道的XML文档

       for(int j=0;j<ds.Tables["Tree"].Rows.Count;j++)

       {

              if(Int32.Parse(ds.Tables["Tree"].Rows[j].ItemArray[2].ToString()) == 0)

              {

                     this.BulidXmlTree(treeContentElement,j);

              }

              else

              {

                     continue;

              }

       }

       string fileName = Server.MapPath("Xml/MetoneTree.xml");

       xmlDoc_Metone.Save(fileName);

}

#endregion

 

#region 构XML树

private void BulidXmlTree(XmlElement tempXmlElement,int location)

{                                

       DataRow tempRow = ds.Tables["Tree"].Rows[location];

       //生成Tree节点

       XmlElement treeElement = xmlDoc_Metone.CreateElement("Tree");

       tempXmlElement.AppendChild(treeElement);

 

       this.AppendChildElement("MetoneID",tempRow.ItemArray[0].ToString(),treeElement);

       this.AppendChildElement("MetoneName",tempRow.ItemArray[1].ToString(),treeElement);

       this.AppendChildElement("ParentMetoneID",tempRow.ItemArray[2].ToString(),treeElement);

       this.AppendChildElement("MetoneUrl",tempRow.ItemArray[3].ToString(),treeElement);                              

 

       for(int i=0 ; i < ds.Tables["Tree"].Rows.Count;i++)

       {

              if(ds.Tables["Tree"].Rows[i].ItemArray[2].ToString() == tempRow.ItemArray[0].ToString())

              {

                     this.BulidXmlTree(treeElement,i);

              }

       }           

}

#endregion

 

#region 追加子节点

/// <summary>

/// 追加子节点

/// </summary>

/// <param name="strName">节点名字</param>

/// <param name="strInnerText">节点内容</param>

/// <param name="parentElement">父节点</param>

/// <param name="xmlDocument">XmlDocument对象</param>

private void AppendChildElement(string strName , string strInnerText , XmlElement parentElement, XmlDocument xmlDocument )

{

       XmlElement xmlElement = xmlDocument.CreateElement(strName) ;

       xmlElement.InnerText = strInnerText ;

       parentElement.AppendChild(xmlElement);

      

}

 

/// <summary>

/// 使用默认的频道Xml文档

/// </summary>

/// <param name="strName"></param>

/// <param name="strInnerText"></param>

/// <param name="parentElement"></param>

private void AppendChildElement(string strName , string strInnerText , XmlElement parentElement )

{

       AppendChildElement(strName,strInnerText,parentElement,xmlDoc_Metone);

}

#endregion

 

一点说明：感觉这些代码基本上都是自解释的，关键点都有注释，看看就明白的。

二、解析ｘｍｌ的ｘｓｌｔ

<?xml version="1.0" encoding="gb2312"?>

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

       <xsl:output method="xml" version="1.0" encoding="gb2312" indent="yes"/>

       <xsl:template match="NewDataSet">

              <xsl:apply-templates select="Tree"></xsl:apply-templates>

       </xsl:template>

       <xsl:template match="Tree">

              <div ondragstart="return false" style="padding-left:20px;" >

                     <xsl:attribute name="onclick">selectedEntity = '<xsl:value-of select="MetoneID" />';clickOnEntity(this);redirect('<xsl:value-of select="MetoneUrl" />');</xsl:attribute>

                     <xsl:attribute name="open">false</xsl:attribute>

                     <xsl:attribute name="id">

                            <xsl:value-of select="MetoneID" />

                     </xsl:attribute>

                     <xsl:attribute name="STYLE">

                            <xsl:if test="count(ancestor::node()) > 2">

                                   display: none;

                            </xsl:if>

                                   cursor: hand;

                     </xsl:attribute>             

              <table border="0" cellpadding="0" cellspacing="0" style="line-height:130%">

                     <tr>

                            <td >

                                   <a href="{MetoneUrl}" target="main"><xsl:value-of select="MetoneName"></xsl:value-of></a>

                            </td>

                     </tr>

              </table>  

              <xsl:apply-templates select="Tree"></xsl:apply-templates>

              </div>

       </xsl:template>      

 

</xsl:stylesheet>

三、一个小技巧：用ｊｓ把ｘｍｌ的数据用ｘｓｌｔ解析后填充到固定的ｈｔｍｌ块中，比如ｄｉｖ，调用代码：initAdmin('MetoneTree.xml', 'submenu','MetoneTree.xslt')，ｊｓ代码如下：

var view;//中英文版本切换

var xmlDoc;//MSXML2.DOM对象

var selectedEntity;//选中接点ID号

 

 

function initAdmin(fileName, divTree,xsltFile, expID)//初始化树状结构

{

       var xslDoc;

       var strXml;

       var objXml;

       var xmlHttp;

       var xslProc;

       var xslTemplate;

      

       //alert(fileName);

      

       xmlDoc = new ActiveXObject("MSXML2.DOMDocument");

       xmlDoc.async = false;

      

       xslDoc = new ActiveXObject("MSXML2.FreeThreadedDOMDocument");

       xslDoc.async = false;

      

      

       xmlDoc.load("XML/"+fileName);

       xslDoc.load("XSLT/"+xsltFile);

      

       xslTemplate = new ActiveXObject("MSXML2.XSLTemplate");

       xslTemplate.stylesheet = xslDoc;

       xslProc = xslTemplate.createProcessor();

       xslProc.input = xmlDoc;

       xslProc.transform();

      

       document.all[divTree].innerHTML = xslProc.output;

       if(expID != null)

       {

              expandSome(document.all[expID]);

       }

}

 

四、如果有不明白的ｍｓｎ上提问好了，ｍｓｎ：[email protected]，文中要有疏漏之处请多指教。

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