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#region 创建Xml文档
/// <summary>
/// 创建一个带有根节点的Xml文件
/// </summary>
/// <param name="FileName">Xml文件名称</param>
/// <param name="rootName">根节点名称</param>
/// <param name="Encode">编码方式:gb2312,UTF-8等常见的</param>
/// <param name="DirPath">保存的目录路径</param>
/// <returns></returns>
public bool CreateXmlDocument(string FileName, string rootName, string Encode)
{
try
{
xmldoc = new XmlDocument();
XmlDeclaration xmldecl;
xmldecl = xmldoc.CreateXmlDeclaration("1.0", Encode, null);
xmldoc.AppendChild(xmldecl);
xmlelem = xmldoc.CreateElement("", rootName, "");
xmldoc.AppendChild(xmlelem);
xmldoc.Save(FileName);
return true;
}
catch (Exception e)
{
return false;
throw new Exception(e.Message);
}
}
#endregion
#region 常用操作方法(增删改)
/// <summary>
/// 插入一个节点和它的若干子节点
/// </summary>
/// <param name="XmlFile">Xml文件路径</param>
/// <param name="NewNodeName">插入的节点名称</param>
/// <param name="HasAttributes">此节点是否具有属性,True为有,False为无</param>
/// <param name="fatherNode">此插入节点的父节点</param>
/// <param name="htAtt">此节点的属性,Key为属性名,Value为属性值</param>
/// <param name="htSubNode">子节点的属性,Key为Name,Value为InnerText</param>
/// <returns>返回真为更新成功,否则失败</returns>
public bool InsertNode(string XmlFile, string NewNodeName, bool HasAttributes, string fatherNode, Hashtable htAtt, Hashtable htSubNode)
{
try
{
xmldoc = new XmlDocument();
xmldoc.Load(XmlFile);
XmlNode root = xmldoc.SelectSingleNode(fatherNode);
xmlelem = xmldoc.CreateElement(NewNodeName);
if (htAtt != null && HasAttributes)//若此节点有属性,则先添加属性
{
SetAttributes(xmlelem, htAtt);
SetNodes(xmlelem.Name, xmldoc, xmlelem, htSubNode);//添加完此节点属性后,再添加它的子节点和它们的InnerText
}
else
{
SetNodes(xmlelem.Name, xmldoc, xmlelem, htSubNode);//若此节点无属性,那么直接添加它的子节点
}
root.AppendChild(xmlelem);
xmldoc.Save(XmlFile);
return true;
}
catch (Exception e)
{
throw new Exception(e.Message);
}
}
/// <summary>
/// 更新节点
/// </summary>
/// <param name="XmlFile">Xml文件路径</param>
/// <param name="fatherNode">需要更新节点的上级节点</param>
/// <param name="htAtt">需要更新的属性表,Key代表需要更新的属性,Value代表更新后的值</param>
/// <param name="htSubNode">需要更新的子节点的属性表,Key代表需要更新的子节点名字Name,Value代表更新后的值InnerText</param>
/// <returns>返回真为更新成功,否则失败</returns>
public bool UpdateNode(string XmlFile, string fatherNode, Hashtable htAtt, Hashtable htSubNode)
{
try
{
xmldoc = new XmlDocument();
xmldoc.Load(XmlFile);
XmlNodeList root = xmldoc.SelectSingleNode(fatherNode).ChildNodes;
UpdateNodes(root, htAtt, htSubNode);
xmldoc.Save(XmlFile);
return true;
}
catch (Exception e)
{
throw new Exception(e.Message);
}
}
/// <summary>
/// 删除指定节点下的子节点
/// </summary>
/// <param name="XmlFile">Xml文件路径</param>
/// <param name="fatherNode">制定节点</param>
/// <returns>返回真为更新成功,否则失败</returns>
public bool DeleteNodes(string XmlFile, string fatherNode)
{
try
{
xmldoc = new XmlDocument();
xmldoc.Load(XmlFile);
xmlnode = xmldoc.SelectSingleNode(fatherNode);
xmlnode.RemoveAll();
xmldoc.Save(XmlFile);
return true;
}
catch (XmlException xe)
{
throw new XmlException(xe.Message);
}
}
#endregion
#region 私有方法
/// <summary>
/// 设置节点属性
/// </summary>
/// <param name="xe">节点所处的Element</param>
/// <param name="htAttribute">节点属性,Key代表属性名称,Value代表属性值</param>
private void SetAttributes(XmlElement xe, Hashtable htAttribute)
{
foreach (DictionaryEntry de in htAttribute)
{
xe.SetAttribute(de.Key.ToString(), de.Value.ToString());
}
}
/// <summary>
/// 增加子节点到根节点下
/// </summary>
/// <param name="rootNode">上级节点名称</param>
/// <param name="XmlDoc">Xml文档</param>
/// <param name="rootXe">父根节点所属的Element</param>
/// <param name="SubNodes">子节点属性,Key为Name值,Value为InnerText值</param>
private void SetNodes(string rootNode, XmlDocument XmlDoc, XmlElement rootXe, Hashtable SubNodes)
{
foreach (DictionaryEntry de in SubNodes)
{
xmlnode = XmlDoc.SelectSingleNode(rootNode);
XmlElement subNode = XmlDoc.CreateElement(de.Key.ToString());
subNode.InnerText = de.Value.ToString();
rootXe.AppendChild(subNode);
}
}
/// <summary>
/// 更新节点属性和子节点InnerText值
/// </summary>
/// <param name="root">根节点名字</param>
/// <param name="htAtt">需要更改的属性名称和值</param>
/// <param name="htSubNode">需要更改InnerText的子节点名字和值</param>
private void UpdateNodes(XmlNodeList root, Hashtable htAtt, Hashtable htSubNode)
{
foreach (XmlNode xn in root)
{
xmlelem = (XmlElement)xn;
if (xmlelem.HasAttributes)//如果节点如属性,则先更改它的属性
{
foreach (DictionaryEntry de in htAtt)//遍历属性哈希表
{
if (xmlelem.HasAttribute(de.Key.ToString()))//如果节点有需要更改的属性
{
xmlelem.SetAttribute(de.Key.ToString(), de.Value.ToString());//则把哈希表中相应的值Value赋给此属性Key
}
}
}
if (xmlelem.HasChildNodes)//如果有子节点,则修改其子节点的InnerText
{
XmlNodeList xnl = xmlelem.ChildNodes;
foreach (XmlNode xn1 in xnl)
{
XmlElement xe = (XmlElement)xn1;
foreach (DictionaryEntry de in htSubNode)
{
if (xe.Name == de.Key.ToString())//htSubNode中的key存储了需要更改的节点名称,
{
xe.InnerText = de.Value.ToString();//htSubNode中的Value存储了Key节点更新后的数据
}
}
}
}
}
}
#endregion