C# XML操作類分享
更新時(shí)間：2017年06月26日 10:05:56 作者：孤者自清
這篇文章主要分享了C# XML操作類的實(shí)例代碼，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下
本文實(shí)例為大家分享了Android九宮格圖片展示的具體代碼，供大家參考，具體內(nèi)容如下
XmlHelper
using System.Xml;
using System.Data;
namespace DotNet.Utilities
{
/// <summary>
/// Xml的操作公共類
/// </summary>
public class XmlHelper
{
#region 字段定義
/// <summary>
/// XML文件的物理路徑
/// </summary>
private string _filePath = string.Empty;
/// <summary>
/// Xml文檔
/// </summary>
private XmlDocument _xml;
/// <summary>
/// XML的根節(jié)點(diǎn)
/// </summary>
private XmlElement _element;
#endregion
#region 構(gòu)造方法
/// <summary>
/// 實(shí)例化XmlHelper對(duì)象
/// </summary>
/// <param name="xmlFilePath">Xml文件的相對(duì)路徑</param>
public XmlHelper(string xmlFilePath)
{
//獲取XML文件的絕對(duì)路徑
_filePath = SysHelper.GetPath(xmlFilePath);
}
#endregion
#region 創(chuàng)建XML的根節(jié)點(diǎn)
/// <summary>
/// 創(chuàng)建XML的根節(jié)點(diǎn)
/// </summary>
private void CreateXMLElement()
{
//創(chuàng)建一個(gè)XML對(duì)象
_xml = new XmlDocument();
if (DirFile.IsExistFile(_filePath))
{
//加載XML文件
_xml.Load(this._filePath);
}
//為XML的根節(jié)點(diǎn)賦值
_element = _xml.DocumentElement;
}
#endregion
#region 獲取指定XPath表達(dá)式的節(jié)點(diǎn)對(duì)象
/// <summary>
/// 獲取指定XPath表達(dá)式的節(jié)點(diǎn)對(duì)象
/// </summary>
/// <param name="xPath">XPath表達(dá)式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"http://Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示篩選,USERNAME是Table下的一個(gè)子節(jié)點(diǎn).
/// 范例3: @"ApplyPost/Item[@itemName='崗位編號(hào)']",@itemName是Item節(jié)點(diǎn)的屬性.
/// </param>
public XmlNode GetNode(string xPath)
{
//創(chuàng)建XML的根節(jié)點(diǎn)
CreateXMLElement();
//返回XPath節(jié)點(diǎn)
return _element.SelectSingleNode(xPath);
}
#endregion
#region 獲取指定XPath表達(dá)式節(jié)點(diǎn)的值
/// <summary>
/// 獲取指定XPath表達(dá)式節(jié)點(diǎn)的值
/// </summary>
/// <param name="xPath">XPath表達(dá)式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"http://Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示篩選,USERNAME是Table下的一個(gè)子節(jié)點(diǎn).
/// 范例3: @"ApplyPost/Item[@itemName='崗位編號(hào)']",@itemName是Item節(jié)點(diǎn)的屬性.
/// </param>
public string GetValue(string xPath)
{
//創(chuàng)建XML的根節(jié)點(diǎn)
CreateXMLElement();
//返回XPath節(jié)點(diǎn)的值
return _element.SelectSingleNode(xPath).InnerText;
}
#endregion
#region 獲取指定XPath表達(dá)式節(jié)點(diǎn)的屬性值
/// <summary>
/// 獲取指定XPath表達(dá)式節(jié)點(diǎn)的屬性值
/// </summary>
/// <param name="xPath">XPath表達(dá)式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"http://Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示篩選,USERNAME是Table下的一個(gè)子節(jié)點(diǎn).
/// 范例3: @"ApplyPost/Item[@itemName='崗位編號(hào)']",@itemName是Item節(jié)點(diǎn)的屬性.
/// </param>
/// <param name="attributeName">屬性名</param>
public string GetAttributeValue(string xPath, string attributeName)
{
//創(chuàng)建XML的根節(jié)點(diǎn)
CreateXMLElement();
//返回XPath節(jié)點(diǎn)的屬性值
return _element.SelectSingleNode(xPath).Attributes[attributeName].Value;
}
#endregion
#region 新增節(jié)點(diǎn)
/// <summary>
/// 1. 功能：新增節(jié)點(diǎn)。
/// 2. 使用條件：將任意節(jié)點(diǎn)插入到當(dāng)前Xml文件中。
/// </summary>
/// <param name="xmlNode">要插入的Xml節(jié)點(diǎn)</param>
public void AppendNode(XmlNode xmlNode)
{
//創(chuàng)建XML的根節(jié)點(diǎn)
CreateXMLElement();
//導(dǎo)入節(jié)點(diǎn)
XmlNode node = _xml.ImportNode(xmlNode, true);
//將節(jié)點(diǎn)插入到根節(jié)點(diǎn)下
_element.AppendChild(node);
}
/// <summary>
/// 1. 功能：新增節(jié)點(diǎn)。
/// 2. 使用條件：將DataSet中的第一條記錄插入Xml文件中。
/// </summary>
/// <param name="ds">DataSet的實(shí)例，該DataSet中應(yīng)該只有一條記錄</param>
public void AppendNode(DataSet ds)
{
//創(chuàng)建XmlDataDocument對(duì)象
XmlDataDocument xmlDataDocument = new XmlDataDocument(ds);
//導(dǎo)入節(jié)點(diǎn)
XmlNode node = xmlDataDocument.DocumentElement.FirstChild;
//將節(jié)點(diǎn)插入到根節(jié)點(diǎn)下
AppendNode(node);
}
#endregion
#region 刪除節(jié)點(diǎn)
/// <summary>
/// 刪除指定XPath表達(dá)式的節(jié)點(diǎn)
/// </summary>
/// <param name="xPath">XPath表達(dá)式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"http://Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示篩選,USERNAME是Table下的一個(gè)子節(jié)點(diǎn).
/// 范例3: @"ApplyPost/Item[@itemName='崗位編號(hào)']",@itemName是Item節(jié)點(diǎn)的屬性.
/// </param>
public void RemoveNode(string xPath)
{
//創(chuàng)建XML的根節(jié)點(diǎn)
CreateXMLElement();
//獲取要?jiǎng)h除的節(jié)點(diǎn)
XmlNode node = _xml.SelectSingleNode(xPath);
//刪除節(jié)點(diǎn)
_element.RemoveChild(node);
}
#endregion //刪除節(jié)點(diǎn)
#region 保存XML文件
/// <summary>
/// 保存XML文件
/// </summary>
public void Save()
{
//創(chuàng)建XML的根節(jié)點(diǎn)
CreateXMLElement();
//保存XML文件
_xml.Save(this._filePath);
}
#endregion //保存XML文件
#region 靜態(tài)方法
#region 創(chuàng)建根節(jié)點(diǎn)對(duì)象
/// <summary>
/// 創(chuàng)建根節(jié)點(diǎn)對(duì)象
/// </summary>
/// <param name="xmlFilePath">Xml文件的相對(duì)路徑</param>
private static XmlElement CreateRootElement(string xmlFilePath)
{
//定義變量，表示XML文件的絕對(duì)路徑
string filePath = "";
//獲取XML文件的絕對(duì)路徑
filePath = SysHelper.GetPath(xmlFilePath);
//創(chuàng)建XmlDocument對(duì)象
XmlDocument xmlDocument = new XmlDocument();
//加載XML文件
xmlDocument.Load(filePath);
//返回根節(jié)點(diǎn)
return xmlDocument.DocumentElement;
}
#endregion
#region 獲取指定XPath表達(dá)式節(jié)點(diǎn)的值
/// <summary>
/// 獲取指定XPath表達(dá)式節(jié)點(diǎn)的值
/// </summary>
/// <param name="xmlFilePath">Xml文件的相對(duì)路徑</param>
/// <param name="xPath">XPath表達(dá)式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"http://Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示篩選,USERNAME是Table下的一個(gè)子節(jié)點(diǎn).
/// 范例3: @"ApplyPost/Item[@itemName='崗位編號(hào)']",@itemName是Item節(jié)點(diǎn)的屬性.
/// </param>
public static string GetValue(string xmlFilePath, string xPath)
{
//創(chuàng)建根對(duì)象
XmlElement rootElement = CreateRootElement(xmlFilePath);
//返回XPath節(jié)點(diǎn)的值
return rootElement.SelectSingleNode(xPath).InnerText;
}
#endregion
#region 獲取指定XPath表達(dá)式節(jié)點(diǎn)的屬性值
/// <summary>
/// 獲取指定XPath表達(dá)式節(jié)點(diǎn)的屬性值
/// </summary>
/// <param name="xmlFilePath">Xml文件的相對(duì)路徑</param>
/// <param name="xPath">XPath表達(dá)式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"http://Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示篩選,USERNAME是Table下的一個(gè)子節(jié)點(diǎn).
/// 范例3: @"ApplyPost/Item[@itemName='崗位編號(hào)']",@itemName是Item節(jié)點(diǎn)的屬性.
/// </param>
/// <param name="attributeName">屬性名</param>
public static string GetAttributeValue(string xmlFilePath, string xPath, string attributeName)
{
//創(chuàng)建根對(duì)象
XmlElement rootElement = CreateRootElement(xmlFilePath);
//返回XPath節(jié)點(diǎn)的屬性值
return rootElement.SelectSingleNode(xPath).Attributes[attributeName].Value;
}
#endregion
#endregion
public static void SetValue(string xmlFilePath, string xPath, string newtext)
{
//string path = SysHelper.GetPath(xmlFilePath);
//var queryXML = from xmlLog in xelem.Descendants("msg_log")
// //所有名字為Bin的記錄
// where xmlLog.Element("user").Value == "Bin"
// select xmlLog;
//foreach (XElement el in queryXML)
//{
// el.Element("user").Value = "LiuBin";//開始修改
//}
//xelem.Save(path);
}
}
}
XmlProcess
using System;
using System.Data;
using System.IO;
using System.Xml;
namespace DotNet.Utilities
{
public class XMLProcess
{
#region 構(gòu)造函數(shù)
public XMLProcess()
{ }
public XMLProcess(string strPath)
{
this._XMLPath = strPath;
}
#endregion
#region 公有屬性
private string _XMLPath;
public string XMLPath
{
get { return this._XMLPath; }
}
#endregion
#region 私有方法
/// <summary>
/// 導(dǎo)入XML文件
/// </summary>
/// <param name="XMLPath">XML文件路徑</param>
private XmlDocument XMLLoad()
{
string XMLFile = XMLPath;
XmlDocument xmldoc = new XmlDocument();
try
{
string filename = AppDomain.CurrentDomain.BaseDirectory.ToString() + XMLFile;
if (File.Exists(filename)) xmldoc.Load(filename);
}
catch (Exception e)
{ }
return xmldoc;
}
/// <summary>
/// 導(dǎo)入XML文件
/// </summary>
/// <param name="XMLPath">XML文件路徑</param>
private static XmlDocument XMLLoad(string strPath)
{
XmlDocument xmldoc = new XmlDocument();
try
{
string filename = AppDomain.CurrentDomain.BaseDirectory.ToString() + strPath;
if (File.Exists(filename)) xmldoc.Load(filename);
}
catch (Exception e)
{ }
return xmldoc;
}
/// <summary>
/// 返回完整路徑
/// </summary>
/// <param name="strPath">Xml的路徑</param>
private static string GetXmlFullPath(string strPath)
{
if (strPath.IndexOf(":") > 0)
{
return strPath;
}
else
{
return System.Web.HttpContext.Current.Server.MapPath(strPath);
}
}
#endregion
#region 讀取數(shù)據(jù)
/// <summary>
/// 讀取指定節(jié)點(diǎn)的數(shù)據(jù)
/// </summary>
/// <param name="node">節(jié)點(diǎn)</param>
/// 使用示列:
/// XMLProsess.Read("/Node", "")
/// XMLProsess.Read("/Node/Element[@Attribute='Name']")
public string Read(string node)
{
string value = "";
try
{
XmlDocument doc = XMLLoad();
XmlNode xn = doc.SelectSingleNode(node);
value = xn.InnerText;
}
catch { }
return value;
}
/// <summary>
/// 讀取指定路徑和節(jié)點(diǎn)的串聯(lián)值
/// </summary>
/// <param name="path">路徑</param>
/// <param name="node">節(jié)點(diǎn)</param>
/// <param name="attribute">屬性名，非空時(shí)返回該屬性值，否則返回串聯(lián)值</param>
/// 使用示列:
/// XMLProsess.Read(path, "/Node", "")
/// XMLProsess.Read(path, "/Node/Element[@Attribute='Name']")
public static string Read(string path, string node)
{
string value = "";
try
{
XmlDocument doc = XMLLoad(path);
XmlNode xn = doc.SelectSingleNode(node);
value = xn.InnerText;
}
catch { }
return value;
}
/// <summary>
/// 讀取指定路徑和節(jié)點(diǎn)的屬性值
/// </summary>
/// <param name="path">路徑</param>
/// <param name="node">節(jié)點(diǎn)</param>
/// <param name="attribute">屬性名，非空時(shí)返回該屬性值，否則返回串聯(lián)值</param>
/// 使用示列:
/// XMLProsess.Read(path, "/Node", "")
/// XMLProsess.Read(path, "/Node/Element[@Attribute='Name']", "Attribute")
public static string Read(string path, string node, string attribute)
{
string value = "";
try
{
XmlDocument doc = XMLLoad(path);
XmlNode xn = doc.SelectSingleNode(node);
value = (attribute.Equals("") ? xn.InnerText : xn.Attributes[attribute].Value);
}
catch { }
return value;
}
/// <summary>
/// 獲取某一節(jié)點(diǎn)的所有孩子節(jié)點(diǎn)的值
/// </summary>
/// <param name="node">要查詢的節(jié)點(diǎn)</param>
public string[] ReadAllChildallValue(string node)
{
int i = 0;
string[] str = { };
XmlDocument doc = XMLLoad();
XmlNode xn = doc.SelectSingleNode(node);
XmlNodeList nodelist = xn.ChildNodes; //得到該節(jié)點(diǎn)的子節(jié)點(diǎn)
if (nodelist.Count > 0)
{
str = new string[nodelist.Count];
foreach (XmlElement el in nodelist)//讀元素值
{
str[i] = el.Value;
i++;
}
}
return str;
}
/// <summary>
/// 獲取某一節(jié)點(diǎn)的所有孩子節(jié)點(diǎn)的值
/// </summary>
/// <param name="node">要查詢的節(jié)點(diǎn)</param>
public XmlNodeList ReadAllChild(string node)
{
XmlDocument doc = XMLLoad();
XmlNode xn = doc.SelectSingleNode(node);
XmlNodeList nodelist = xn.ChildNodes; //得到該節(jié)點(diǎn)的子節(jié)點(diǎn)
return nodelist;
}
/// <summary>
/// 讀取XML返回經(jīng)排序或篩選后的DataView
/// </summary>
/// <param name="strWhere">篩選條件，如:"name='kgdiwss'"</param>
/// <param name="strSort"> 排序條件，如:"Id desc"</param>
public DataView GetDataViewByXml(string strWhere, string strSort)
{
try
{
string XMLFile = this.XMLPath;
string filename = AppDomain.CurrentDomain.BaseDirectory.ToString() + XMLFile;
DataSet ds = new DataSet();
ds.ReadXml(filename);
DataView dv = new DataView(ds.Tables[0]); //創(chuàng)建DataView來完成排序或篩選操作
if (strSort != null)
{
dv.Sort = strSort; //對(duì)DataView中的記錄進(jìn)行排序
}
if (strWhere != null)
{
dv.RowFilter = strWhere; //對(duì)DataView中的記錄進(jìn)行篩選，找到我們想要的記錄
}
return dv;
}
catch (Exception)
{
return null;
}
}
/// <summary>
/// 讀取XML返回DataSet
/// </summary>
/// <param name="strXmlPath">XML文件相對(duì)路徑</param>
public DataSet GetDataSetByXml(string strXmlPath)
{
try
{
DataSet ds = new DataSet();
ds.ReadXml(GetXmlFullPath(strXmlPath));
if (ds.Tables.Count > 0)
{
return ds;
}
return null;
}
catch (Exception)
{
return null;
}
}
#endregion
#region 插入數(shù)據(jù)
/// <summary>
/// 插入數(shù)據(jù)
/// </summary>
/// <param name="path">路徑</param>
/// <param name="node">節(jié)點(diǎn)</param>
/// <param name="element">元素名，非空時(shí)插入新元素，否則在該元素中插入屬性</param>
/// <param name="attribute">屬性名，非空時(shí)插入該元素屬性值，否則插入元素值</param>
/// <param name="value">值</param>
/// 使用示列:
/// XMLProsess.Insert(path, "/Node", "Element", "", "Value")
/// XMLProsess.Insert(path, "/Node", "Element", "Attribute", "Value")
/// XMLProsess.Insert(path, "/Node", "", "Attribute", "Value")
public static void Insert(string path, string node, string element, string attribute, string value)
{
try
{
XmlDocument doc = new XmlDocument();
doc.Load(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
XmlNode xn = doc.SelectSingleNode(node);
if (element.Equals(""))
{
if (!attribute.Equals(""))
{
XmlElement xe = (XmlElement)xn;
xe.SetAttribute(attribute, value);
}
}
else
{
XmlElement xe = doc.CreateElement(element);
if (attribute.Equals(""))
xe.InnerText = value;
else
xe.SetAttribute(attribute, value);
xn.AppendChild(xe);
}
doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
}
catch { }
}
/// <summary>
/// 插入數(shù)據(jù)
/// </summary>
/// <param name="path">路徑</param>
/// <param name="node">節(jié)點(diǎn)</param>
/// <param name="element">元素名，非空時(shí)插入新元素，否則在該元素中插入屬性</param>
/// <param name="strList">由XML屬性名和值組成的二維數(shù)組</param>
public static void Insert(string path, string node, string element, string[][] strList)
{
try
{
XmlDocument doc = new XmlDocument();
doc.Load(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
XmlNode xn = doc.SelectSingleNode(node);
XmlElement xe = doc.CreateElement(element);
string strAttribute = "";
string strValue = "";
for (int i = 0; i < strList.Length; i++)
{
for (int j = 0; j < strList[i].Length; j++)
{
if (j == 0)
strAttribute = strList[i][j];
else
strValue = strList[i][j];
}
if (strAttribute.Equals(""))
xe.InnerText = strValue;
else
xe.SetAttribute(strAttribute, strValue);
}
xn.AppendChild(xe);
doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
}
catch { }
}
/// <summary>
/// 插入一行數(shù)據(jù)
/// </summary>
/// <param name="strXmlPath">XML文件相對(duì)路徑</param>
/// <param name="Columns">要插入行的列名數(shù)組，如：string[] Columns = {"name","IsMarried"};</param>
/// <param name="ColumnValue">要插入行每列的值數(shù)組，如：string[] ColumnValue={"XML大全","false"};</param>
/// <returns>成功返回true,否則返回false</returns>
public static bool WriteXmlByDataSet(string strXmlPath, string[] Columns, string[] ColumnValue)
{
try
{
//根據(jù)傳入的XML路徑得到.XSD的路徑，兩個(gè)文件放在同一個(gè)目錄下
string strXsdPath = strXmlPath.Substring(0, strXmlPath.IndexOf(".")) + ".xsd";
DataSet ds = new DataSet();
ds.ReadXmlSchema(GetXmlFullPath(strXsdPath)); //讀XML架構(gòu)，關(guān)系到列的數(shù)據(jù)類型
ds.ReadXml(GetXmlFullPath(strXmlPath));
DataTable dt = ds.Tables[0];
DataRow newRow = dt.NewRow(); //在原來的表格基礎(chǔ)上創(chuàng)建新行
for (int i = 0; i < Columns.Length; i++) //循環(huán)給一行中的各個(gè)列賦值
{
newRow[Columns[i]] = ColumnValue[i];
}
dt.Rows.Add(newRow);
dt.AcceptChanges();
ds.AcceptChanges();
ds.WriteXml(GetXmlFullPath(strXmlPath));
return true;
}
catch (Exception)
{
return false;
}
}
#endregion
#region 修改數(shù)據(jù)
/// <summary>
/// 修改指定節(jié)點(diǎn)的數(shù)據(jù)
/// </summary>
/// <param name="node">節(jié)點(diǎn)</param>
/// <param name="value">值</param>
public void Update(string node, string value)
{
try
{
XmlDocument doc = XMLLoad();
XmlNode xn = doc.SelectSingleNode(node);
xn.InnerText = value;
doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + XMLPath);
}
catch { }
}
/// <summary>
/// 修改指定節(jié)點(diǎn)的數(shù)據(jù)
/// </summary>
/// <param name="path">路徑</param>
/// <param name="node">節(jié)點(diǎn)</param>
/// <param name="value">值</param>
/// 使用示列:
/// XMLProsess.Insert(path, "/Node","Value")
/// XMLProsess.Insert(path, "/Node","Value")
public static void Update(string path, string node, string value)
{
try
{
XmlDocument doc = XMLLoad(path);
XmlNode xn = doc.SelectSingleNode(node);
xn.InnerText = value;
doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
}
catch { }
}
/// <summary>
/// 修改指定節(jié)點(diǎn)的屬性值(靜態(tài))
/// </summary>
/// <param name="path">路徑</param>
/// <param name="node">節(jié)點(diǎn)</param>
/// <param name="attribute">屬性名，非空時(shí)修改該節(jié)點(diǎn)屬性值，否則修改節(jié)點(diǎn)值</param>
/// <param name="value">值</param>
/// 使用示列:
/// XMLProsess.Insert(path, "/Node", "", "Value")
/// XMLProsess.Insert(path, "/Node", "Attribute", "Value")
public static void Update(string path, string node, string attribute, string value)
{
try
{
XmlDocument doc = XMLLoad(path);
XmlNode xn = doc.SelectSingleNode(node);
XmlElement xe = (XmlElement)xn;
if (attribute.Equals(""))
xe.InnerText = value;
else
xe.SetAttribute(attribute, value);
doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
}
catch { }
}
/// <summary>
/// 更改符合條件的一條記錄
/// </summary>
/// <param name="strXmlPath">XML文件路徑</param>
/// <param name="Columns">列名數(shù)組</param>
/// <param name="ColumnValue">列值數(shù)組</param>
/// <param name="strWhereColumnName">條件列名</param>
/// <param name="strWhereColumnValue">條件列值</param>
public static bool UpdateXmlRow(string strXmlPath, string[] Columns, string[] ColumnValue, string strWhereColumnName, string strWhereColumnValue)
{
try
{
string strXsdPath = strXmlPath.Substring(0, strXmlPath.IndexOf(".")) + ".xsd";
DataSet ds = new DataSet();
ds.ReadXmlSchema(GetXmlFullPath(strXsdPath));//讀XML架構(gòu)，關(guān)系到列的數(shù)據(jù)類型
ds.ReadXml(GetXmlFullPath(strXmlPath));
//先判斷行數(shù)
if (ds.Tables[0].Rows.Count > 0)
{
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
//如果當(dāng)前記錄為符合Where條件的記錄
if (ds.Tables[0].Rows[i][strWhereColumnName].ToString().Trim().Equals(strWhereColumnValue))
{
//循環(huán)給找到行的各列賦新值
for (int j = 0; j < Columns.Length; j++)
{
ds.Tables[0].Rows[i][Columns[j]] = ColumnValue[j];
}
ds.AcceptChanges(); //更新DataSet
ds.WriteXml(GetXmlFullPath(strXmlPath));//重新寫入XML文件
return true;
}
}
}
return false;
}
catch (Exception)
{
return false;
}
}
#endregion
#region 刪除數(shù)據(jù)
/// <summary>
/// 刪除節(jié)點(diǎn)值
/// </summary>
/// <param name="path">路徑</param>
/// <param name="node">節(jié)點(diǎn)</param>
/// <param name="attribute">屬性名，非空時(shí)刪除該節(jié)點(diǎn)屬性值，否則刪除節(jié)點(diǎn)值</param>
/// <param name="value">值</param>
/// 使用示列:
/// XMLProsess.Delete(path, "/Node", "")
/// XMLProsess.Delete(path, "/Node", "Attribute")
public static void Delete(string path, string node)
{
try
{
XmlDocument doc = XMLLoad(path);
XmlNode xn = doc.SelectSingleNode(node);
xn.ParentNode.RemoveChild(xn);
doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
}
catch { }
}
/// <summary>
/// 刪除數(shù)據(jù)
/// </summary>
/// <param name="path">路徑</param>
/// <param name="node">節(jié)點(diǎn)</param>
/// <param name="attribute">屬性名，非空時(shí)刪除該節(jié)點(diǎn)屬性值，否則刪除節(jié)點(diǎn)值</param>
/// <param name="value">值</param>
/// 使用示列:
/// XMLProsess.Delete(path, "/Node", "")
/// XMLProsess.Delete(path, "/Node", "Attribute")
public static void Delete(string path, string node, string attribute)
{
try
{
XmlDocument doc = XMLLoad(path);
XmlNode xn = doc.SelectSingleNode(node);
XmlElement xe = (XmlElement)xn;
if (attribute.Equals(""))
xn.ParentNode.RemoveChild(xn);
else
xe.RemoveAttribute(attribute);
doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
}
catch { }
}
/// <summary>
/// 刪除所有行
/// </summary>
/// <param name="strXmlPath">XML路徑</param>
public static bool DeleteXmlAllRows(string strXmlPath)
{
try
{
DataSet ds = new DataSet();
ds.ReadXml(GetXmlFullPath(strXmlPath));
if (ds.Tables[0].Rows.Count > 0)
{
ds.Tables[0].Rows.Clear();
}
ds.WriteXml(GetXmlFullPath(strXmlPath));
return true;
}
catch (Exception)
{
return false;
}
}
/// <summary>
/// 通過刪除DataSet中指定索引行，重寫XML以實(shí)現(xiàn)刪除指定行
/// </summary>
/// <param name="iDeleteRow">要?jiǎng)h除的行在DataSet中的Index值</param>
public static bool DeleteXmlRowByIndex(string strXmlPath, int iDeleteRow)
{
try
{
DataSet ds = new DataSet();
ds.ReadXml(GetXmlFullPath(strXmlPath));
if (ds.Tables[0].Rows.Count > 0)
{
ds.Tables[0].Rows[iDeleteRow].Delete();
}
ds.WriteXml(GetXmlFullPath(strXmlPath));
return true;
}
catch (Exception)
{
return false;
}
}
/// <summary>
/// 刪除指定列中指定值的行
/// </summary>
/// <param name="strXmlPath">XML相對(duì)路徑</param>
/// <param name="strColumn">列名</param>
/// <param name="ColumnValue">指定值</param>
public static bool DeleteXmlRows(string strXmlPath, string strColumn, string[] ColumnValue)
{
try
{
DataSet ds = new DataSet();
ds.ReadXml(GetXmlFullPath(strXmlPath));
if (ds.Tables[0].Rows.Count > 0)
{
//判斷行多還是刪除的值多，多的for循環(huán)放在里面
if (ColumnValue.Length > ds.Tables[0].Rows.Count)
{
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
for (int j = 0; j < ColumnValue.Length; j++)
{
if (ds.Tables[0].Rows[i][strColumn].ToString().Trim().Equals(ColumnValue[j]))
{
ds.Tables[0].Rows[i].Delete();
}
}
}
}
else
{
for (int j = 0; j < ColumnValue.Length; j++)
{
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
if (ds.Tables[0].Rows[i][strColumn].ToString().Trim().Equals(ColumnValue[j]))
{
ds.Tables[0].Rows[i].Delete();
}
}
}
}
ds.WriteXml(GetXmlFullPath(strXmlPath));
}
return true;
}
catch (Exception)
{
return false;
}
}
#endregion
}
}
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。
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