using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Windows.Forms; namespace MyCommanHelper
{
public class XMLHelper
{ #region 读取节点值 /// <summary>
/// 读取节点值
/// </summary>
/// <param name="doc"></param>
/// <param name="Section"></param>
/// <param name="Key"></param>
/// <returns></returns>
public static string XmlReadValue(XmlDocument doc, string Section, string Key)
{
XmlNode result = doc.SelectSingleNode(Section);
string ss = "";
if (null != result)
{
ss = result.SelectSingleNode(Key).InnerText;
}
return ss;
} /// <summary>
/// 获取二层小结下的键值
/// </summary>
/// <param name="doc"></param>
/// <param name="Section"></param>
/// <param name="subSection"></param>
/// <param name="Key"></param>
/// <returns></returns>
public static string XmlReadValue(XmlDocument doc, string Section, string subSection, string Key)
{
try
{
XmlNode result = doc.SelectSingleNode(Section);
if (null != result)
{
XmlNodeList childnodes = result.ChildNodes;
for (int i = 0; i < childnodes.Count; i++)
{
XmlNode node = childnodes[i];
if (node.LocalName.Equals(subSection))
{
return node.SelectSingleNode(Key).InnerText;
}
}
}
return "";
}
catch
{
return "";
}
} /// <summary>
/// 获取三层小结下的键值
/// </summary>
/// <param name="doc"></param>
/// <param name="Section"></param>
/// <param name="subSection"></param>
/// <param name="sub2Section"></param>
/// <param name="Key"></param>
/// <returns></returns>
public static string XmlReadValue(XmlDocument doc, string Section, string subSection, string sub2Section, string Key)
{
try
{
XmlNode result = doc.SelectSingleNode(Section);
if (null != result)
{
XmlNodeList parentNodes = result.ChildNodes;
for (int i = 0; i < parentNodes.Count; i++)
{
XmlNode node = parentNodes[i];
if (node.LocalName.Equals(subSection))
{
XmlNodeList childNodes = node.ChildNodes;
for (int j = 0; j < childNodes.Count; j++)
{
XmlNode subNode = childNodes[j];
if (subNode.LocalName.Equals(sub2Section))
{
return subNode.SelectSingleNode(Key).InnerText;
}
}
}
}
}
return "";
}
catch (Exception)
{
return "";
}
} /// <summary>
/// 获取四层小结下的键值
/// </summary>
/// <param name="doc"></param>
/// <param name="Section"></param>
/// <param name="subSection"></param>
/// <param name="sub2Section"></param>
/// <param name="sub3Section"></param>
/// <param name="Key"></param>
/// <returns></returns>
public static string XmlReadValue(XmlDocument doc, string Section, string subSection, string sub2Section, string sub3Section, string Key)
{
try
{
XmlNode result = doc.SelectSingleNode(Section);
if (null != result)
{
XmlNodeList childnodes = result.ChildNodes;
for (int i = 0; i < childnodes.Count; i++)
{
XmlNode node = childnodes[i];
if (node.LocalName.Equals(subSection))
{
XmlNodeList subNodeList = node.ChildNodes;
for (int j = 0; j < subNodeList.Count; j++)
{
XmlNode subNode = subNodeList[j];
if (subNode.LocalName.Equals(sub2Section))
{
XmlNodeList sub2NodeList = subNode.ChildNodes;
for (int k = 0; k < sub2NodeList.Count; k++)
{
XmlNode sub2Node = sub2NodeList[k];
if (sub2Node.LocalName.Equals(sub3Section))
{
return sub2Node.SelectSingleNode(Key).InnerText;
}
}
}
}
}
}
}
return "";
}
catch
{
return "";
}
} #endregion #region 写入节点值 /// <summary>
/// 写入节点值
/// </summary>
/// <param name="doc"></param>
/// <param name="sXMLPath"></param>
/// <param name="Section"></param>
/// <param name="Key"></param>
/// <param name="Value"></param>
public static void XmlWriteValue(XmlDocument doc, string sXMLPath, string Section, string Key, string Value)
{
try
{
XmlNode result = doc.SelectSingleNode(Section);
if (null == result)
{
result = (XmlNode)doc.CreateElement(Section);
doc.AppendChild(result); XmlNode subNode = doc.CreateElement(Key);
subNode.InnerText = Value;
result.AppendChild(subNode);
}
else
{
XmlNode subNode = result.SelectSingleNode(Key);
if (null == subNode)
{
subNode = doc.CreateElement(Key);
subNode.InnerText = Value;
result.AppendChild(subNode);
}
else
{
subNode.InnerText = Value;
}
} doc.Save(sXMLPath);
}
catch (System.Exception ex)
{
MessageBox.Show("写入节点值错误! " + ex.Message);
}
} public static void XmlWriteValue(XmlDocument doc, string sXMLPath, string Section, string subSection, string Key, string Value)
{
try
{
XmlNode result = doc.SelectSingleNode(Section);
if (null == result)
{
result = (XmlNode)doc.CreateElement(Section);
doc.AppendChild(result); XmlElement subEle = doc.CreateElement(subSection);
result.AppendChild(subEle); XmlElement sub2Ele = doc.CreateElement(Key);
sub2Ele.InnerText = Value;
subEle.AppendChild(sub2Ele);
}
else
{
XmlNode subEle = result.SelectSingleNode(subSection);
if (null == subEle)
{
subEle = doc.CreateElement(subSection);
result.AppendChild(subEle); XmlElement sub2Ele = doc.CreateElement(Key);
sub2Ele.InnerText = Value;
subEle.AppendChild(sub2Ele);
}
else
{
XmlNode sub2Ele = subEle.SelectSingleNode(Key);
if (null == sub2Ele)
{
sub2Ele = doc.CreateElement(Key);
sub2Ele.InnerText = Value;
subEle.AppendChild(sub2Ele);
}
else
{
sub2Ele.InnerText = Value;
}
}
}
}
catch (System.Exception ex)
{
MessageBox.Show("写入节点值错误! " + ex.Message);
}
} public static void XmlWriteValue(XmlDocument doc, string sXMLPath, string Section, string subSection, string sub2Section, string Key, string Value)
{
try
{
XmlNode result = doc.SelectSingleNode(Section);
if (null == result)
{
result = (XmlNode)doc.CreateElement(Section);
doc.AppendChild(result);
}
XmlNode subEle = result.SelectSingleNode(subSection);
if (null == subEle)
{
subEle = doc.CreateElement(subSection);
result.AppendChild(subEle);
} XmlNode sub2Ele = result.SelectSingleNode(sub2Section);
if (null == sub2Ele)
{
sub2Ele = doc.CreateElement(sub2Section);
subEle.AppendChild(sub2Ele);
} XmlNode sub3Ele = subEle.SelectSingleNode(Key);
if (null == sub3Ele)
{
sub3Ele = doc.CreateElement(Key);
sub3Ele.InnerText = Value;
sub2Ele.AppendChild(sub2Ele);
}
else
{
sub3Ele.InnerText = Value;
} doc.Save(sXMLPath);
}
catch (System.Exception ex)
{
MessageBox.Show("写入节点值错误! " + ex.Message);
}
} public static void XmlWriteValue(XmlDocument doc, string sXMLPath,string Section, string subSection, string sub2Section,string sub3Section, string Key, string Value)
{ try
{
XmlNode result = doc.SelectSingleNode(Section);
if (null == result)
{
result = (XmlNode)doc.CreateElement(Section);
doc.AppendChild(result);
}
XmlNode subEle = result.SelectSingleNode(subSection);
if (null == subEle)
{
subEle = doc.CreateElement(subSection);
result.AppendChild(subEle);
} XmlNode sub2Ele = result.SelectSingleNode(sub2Section);
if (null == sub2Ele)
{
sub2Ele = doc.CreateElement(sub2Section);
subEle.AppendChild(sub2Ele);
} XmlNode sub3Ele = result.SelectSingleNode(sub3Section);
if (null == sub2Ele)
{
sub3Ele = doc.CreateElement(sub3Section);
sub2Ele.AppendChild(sub3Ele);
} XmlNode sub4Ele = subEle.SelectSingleNode(Key);
if (null == sub3Ele)
{
sub4Ele = doc.CreateElement(Key);
sub4Ele.InnerText = Value;
sub3Ele.AppendChild(sub2Ele);
}
else
{
sub4Ele.InnerText = Value;
} doc.Save(sXMLPath);
}
catch (System.Exception ex)
{
MessageBox.Show("写入节点值错误! " + ex.Message);
}
} #endregion #region 修改节点值 /// <summary>
/// 修改节点值
/// </summary>
/// <param name="doc"></param>
/// <param name="sXMLPath"></param>
/// <param name="Section"></param>
/// <param name="Key"></param>
/// <param name="Value"></param>
public static void XmlEditValue(XmlDocument doc, string sXMLPath, string Section, string Key, string Value)
{
XmlNode result = doc.SelectSingleNode(Section);
if (null != result)
{
if (Value == "")
{
result.SelectSingleNode(Key).InnerText = "无";
}
else
{
result.SelectSingleNode(Key).InnerText = Value;
}
}
doc.Save(sXMLPath);
} public static void XmlEditValue(XmlDocument doc, string sXMLPath, string Section, string sValue1, string Key, string Value)
{
XmlNode result = doc.SelectSingleNode(Section);
if (null != result)
{
XmlNodeList childnodes = result.ChildNodes;
for (int i = 0; i < childnodes.Count; i++)
{
XmlNode node = childnodes[i];
if (node.LocalName.Equals(sValue1))
{
if (Value == "")
{
node.SelectSingleNode(Key).InnerText = "无";
}
else
{
node.SelectSingleNode(Key).InnerText = Value;
}
}
}
}
doc.Save(sXMLPath);
} public static void XmlEditValue(XmlDocument doc, string sXMLPath,
string Section, string sValue1,
string sValue2, string Key, string Value)
{
XmlNode result = doc.SelectSingleNode(Section);
if (null != result)
{
XmlNodeList parentNodes = result.ChildNodes;
for (int ii = 0; ii < parentNodes.Count; ii++)
{
XmlNode node = parentNodes[ii];
if (node.LocalName.Equals(sValue1))
{
XmlNodeList childNodes = node.ChildNodes;
for (int i = 0; i < childNodes.Count; i++)
{
XmlNode node2 = childNodes[i];
if (node2.LocalName.Equals(sValue2))
{
if (Value == "")
{
node2.SelectSingleNode(Key).InnerText = "无";
}
else
{
node2.SelectSingleNode(Key).InnerText = Value;
}
}
}
}
}
}
doc.Save(sXMLPath);
} public static void XmlEditValue(XmlDocument doc, string sXMLPath,
string Section, string sValue1, string sValue2,
string sValue3, string Key, string Value)
{
XmlNode node = doc.SelectSingleNode(Section);
if (null != node)
{
XmlNodeList childNodes = node.ChildNodes;
for (int i = 0; i < childNodes.Count; i++)
{
XmlNode node2 = childNodes[i];
if (node2.LocalName.Equals(sValue1))
{
XmlNodeList list2 = node2.ChildNodes;
for (int j = 0; j < list2.Count; j++)
{
XmlNode node3 = list2[j];
if (node3.LocalName.Equals(sValue2))
{
XmlNodeList list3 = node3.ChildNodes;
for (int k = 0; k < list3.Count; k++)
{
XmlNode node4 = list3[k];
if (node4.LocalName.Equals(sValue3))
{
if (Value == "")
{
node4.SelectSingleNode(Key).InnerText = "无";
}
else
{
node4.SelectSingleNode(Key).InnerText = Value;
}
}
}
}
}
}
}
}
doc.Save(sXMLPath);
}
#endregion }
}
 public void createXml(double meters)
{
XmlDocument xml = new XmlDocument();
//xml文件的相对路径
string stringPath = Application.ExecutablePath.Substring(0, Application.ExecutablePath.LastIndexOf('\\')) + "\\searchStation.xml";
if (!System.IO.File.Exists(stringPath))
{
System.IO.FileStream fileStream = new System.IO.FileStream(stringPath, System.IO.FileMode.Create, System.IO.FileAccess.ReadWrite, System.IO.FileShare.ReadWrite);
fileStream.Close();
System.IO.File.WriteAllText(stringPath, "<?xml version=\"1.0\"?><ROOT><AREA>"+meters.ToString()+"</AREA></ROOT>");
}
xml.Load(stringPath);
XmlNode nodes = xml.DocumentElement;
foreach (XmlNode item in nodes.ChildNodes)
{
if (item.Name == "AREA")
{
item.InnerText = meters.ToString();
}
}
xml.Save(stringPath);
}

更多:https://i.cnblogs.com/EditPosts.aspx?postid=3673944

05-11 21:45