ASP.NET中讀取XML文件信息的4種方法與示例代碼

更新時間：2007年03月25日 00:00:00 作者：

方法一：使用XML控件
<% @ Page Language="C#"%>
<html>
<body>
       <h3><font face="Verdana">讀取XML方法一</font></h3>
       <from runat=server>
        <asp:Xml id="xml1" DocumentSource="grade.xml" runat="server" />
      </from>
</body>
</html>
方法二：使用DOM技術(shù)
<% @ Page Language="C#"%>
<% @ Import Namespace="System.Xml"%>
<% @ Import Namespace="System.Xml.Xsl"%>
<html>
<script language="C#" runat="server">
void Page_Load(Object sender,EventArgs e)
{
   XmlDocument doc=new XmlDocument();
   doc.Load(Server.MapPath("grade.xml"));
   xml1.Document=doc;
}
</script>
<body>
   <h3><font face="Verdana">讀取XML方法二</font></h3>
    <from runat=server>
        <asp:Xml id="xml1"  runat="server" />
    </from>
</body>
</html>
方法三：使用DataSet對象
<% @ Page Language="C#"%>
<% @ Import Namespace="System.Data"%>
<% @ Import Namespace="System.Data.OleDb"%>
<script language="C#" runat="server">
void Page_Load(Object sender,EventArgs e)
{
   DataSet  objDataSet=new DataSet();
   objDataSet.ReadXml(Server.MapPath("grade.xml"));
   dgEmployees.DataSource=objDataSet.Tables["student"].DefaultView;
   dgEmployees.DataBind();
}
</script>
<body>
   <h3><font face="Verdana">讀取XML方法三</font></h3>
   <asp:DataGrid id="dgEmployees" runat="server" />
</body>
</html>
方法四：按文本方式讀取
<% @ Page Language="C#"%>
<% @ Import Namespace="System.Xml"%>
<html>
<script language="C#" runat="server">
private void Page_Load(Object sender,EventArgs e)
{
    XmlTextReader objXMLReader=new XmlTextReader(Server.MapPath("grade.xml"));
    string strNodeResult="";
    XmlNodeType objNodeType;
while(objXMLReader.Read())
{
    objNodeType =objXMLReader.NodeType;
    swith(objNodeType)
    {
    case XmlNodeType.XmlDeclaration:
      //讀取XML文件頭
      strNodeResult+="XML Declaration:<b>"+objXMLReader.Name+""+objXMLReader.Value+"</b><br/>";
      break;
   case XmlNodeType.Element:
     //讀取標簽
     strNodeResult+="Element:<b>"+objXMLReader.Name+"</b><br/>";
     break;
   case XmlNodeType.Text:
     //讀取值
     strNodeResult+=" -Value:<b>"+objXMLReader.Value+"</b><br/>";
     break;
   }
//判斷該節(jié)點是否有屬性
if(objXMLReader.AttributeCount>0)
  {  //用循環(huán)判斷完所有節(jié)點
    while(objXMLReader.MoveToNextAttibute)
     { //取標簽和值
     strNodeResult+=" -Attribute:<b>"+objXMLReader.Name+"</b> value:<b>"+objXMLReader.Value+"</b><br/>";
      }
   }
LblFile.Text=strNodeResult;
}
}
</script>
<body>
   <h3><font face="Verdana">讀取XML方法四</font></h3>
    <from runat=server>
        <asp:label id="LblFile"  runat="server" />
    </from>
</body>
</html>

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