C#实现的XML操作类实例
本文实例讲述了C#实现的XML操作类。分享给大家供大家参考。具体如下：
这里讲述了C#写的一个XML操作类，包括读取/插入/修改/删除。
usingSystem;
usingSystem.Data;
usingSystem.Configuration;
usingSystem.Web;
usingSystem.Web.Security;
usingSystem.Web.UI;
usingSystem.Web.UI.WebControls;
usingSystem.Web.UI.WebControls.WebParts;
usingSystem.Web.UI.HtmlControls;
usingSystem.Xml;
namespacePuTianCheng
{
///<summary>
///XmlHelper的摘要说明
///</summary>
publicclassXmlHelper
{
publicXmlHelper()
{
}
///<summary>
///读取数据
///</summary>
///<paramname="path">路径</param>
///<paramname="node">节点</param>
///<paramname="attribute">属性名，非空时返回该属性值，否则返回串联值</param>
///<returns>string</returns>
publicstaticstringRead(stringpath,stringnode,stringattribute)
{
stringvalue="";
try
{
XmlDocumentdoc=newXmlDocument();
doc.Load(path);
XmlNodexn=doc.SelectSingleNode(node);
value=(attribute.Equals("")?xn.InnerText:xn.Attributes[attribute].Value);
}
catch{}
returnvalue;
}
///<summary>
///插入数据
///</summary>
///<paramname="path">路径</param>
///<paramname="node">节点</param>
///<paramname="element">元素名，非空时插入新元素，否则在该元素中插入属性</param>
///<paramname="attribute">属性名，非空时插入该元素属性值，否则插入元素值</param>
///<paramname="value">值</param>
///<returns></returns>
publicstaticvoidInsert(stringpath,stringnode,stringelement,stringattribute,stringvalue)
{
try
{
XmlDocumentdoc=newXmlDocument();
doc.Load(path);
XmlNodexn=doc.SelectSingleNode(node);
if(element.Equals(""))
{
if(!attribute.Equals(""))
{
XmlElementxe=(XmlElement)xn;
xe.SetAttribute(attribute,value);
}
}
else
{
XmlElementxe=doc.createElement_x(element);
if(attribute.Equals(""))
xe.InnerText=value;
else
xe.SetAttribute(attribute,value);
xn.AppendChild(xe);
}
doc.Save(path);
}
catch{}
}
///<summary>
///修改数据
///</summary>
///<paramname="path">路径</param>
///<paramname="node">节点</param>
///<paramname="attribute">属性名，非空时修改该节点属性值，否则修改节点值</param>
///<paramname="value">值</param>
///<returns></returns>
publicstaticvoidUpdate(stringpath,stringnode,stringattribute,stringvalue)
{
try
{
XmlDocumentdoc=newXmlDocument();
doc.Load(path);
XmlNodexn=doc.SelectSingleNode(node);
XmlElementxe=(XmlElement)xn;
if(attribute.Equals(""))
xe.InnerText=value;
else
xe.SetAttribute(attribute,value);
doc.Save(path);
}
catch{}
}
///<summary>
///删除数据
///</summary>
///<paramname="path">路径</param>
///<paramname="node">节点</param>
///<paramname="attribute">属性名，非空时删除该节点属性值，否则删除节点值</param>
///<paramname="value">值</param>
///<returns></returns>
publicstaticvoidDelete(stringpath,stringnode,stringattribute)
{
try
{
XmlDocumentdoc=newXmlDocument();
doc.Load(path);
XmlNodexn=doc.SelectSingleNode(node);
XmlElementxe=(XmlElement)xn;
if(attribute.Equals(""))
xn.ParentNode.RemoveChild(xn);
else
xe.RemoveAttribute(attribute);
doc.Save(path);
}
catch{}
}
}
}
XmlFile.xml：
<?xmlversion="1.0"encoding="utf-8"?> <Root/>
使用方法：
stringxml=Server.MapPath("XmlFile.xml");
//插入元素
XmlHelper.Insert(xml,"/Root","Studio","","");
//插入元素/属性
XmlHelper.Insert(xml,"/Root/Studio","Site","Name","小路工作室");
XmlHelper.Insert(xml,"/Root/Studio","Site","Name","丁香鱼工作室");
XmlHelper.Insert(xml,"/Root/Studio","Site","Name","谱天城工作室");
XmlHelper.Insert(xml,"/Root/Studio/Site[@Name='谱天城工作室']","Master","","红尘静思");
//插入属性
XmlHelper.Insert(xml,"/Root/Studio/Site[@Name='小路工作室']","","Url","http://www.wzlu.com/");
XmlHelper.Insert(xml,"/Root/Studio/Site[@Name='丁香鱼工作室']","","Url","http://www.luckfish.net/");
XmlHelper.Insert(xml,"/Root/Studio/Site[@Name='谱天城工作室']","","Url","http://www.putiancheng.com/");
//修改元素值
XmlHelper.Update(xml,"/Root/Studio/Site[@Name='谱天城工作室']/Master","","RedDust");
//修改属性值
XmlHelper.Update(xml,"/Root/Studio/Site[@Name='谱天城工作室']","Url","http://www.putiancheng.net/");
XmlHelper.Update(xml,"/Root/Studio/Site[@Name='谱天城工作室']","Name","PuTianChengStudio");
//读取元素值
Response.Write("<div>"+XmlHelper.Read(xml,"/Root/Studio/Site/Master","")+"</div>");
//读取属性值
Response.Write("<div>"+XmlHelper.Read(xml,"/Root/Studio/Site","Url")+"</div>");
//读取特定属性值
Response.Write("<div>"+XmlHelper.Read(xml,"/Root/Studio/Site[@Name='丁香鱼工作室']","Url")+"</div>");
//删除属性
XmlHelper.Delete(xml,"/Root/Studio/Site[@Name='小路工作室']","Url");
//删除元素
XmlHelper.Delete(xml,"/Root/Studio","");
希望本文所述对大家的C#程序设计有所帮助。