asp.net Linq to Xml學習筆記
2024-07-10 12:42:30
供稿：網友
加上之前學習過Linq to Entity，因此學習起來也比較隨心應手。
以下是項目中某個底層的代碼，記下做個備忘，如果能給新手學習Linq to Xml帶來幫助，那就再好不過了
XML文件的格式：
代碼如下:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<OPsystemConfig>
<MemberCenter>
<DomainName>DomainName</DomainName>
<ProtocolName>ProtocolName</ProtocolName>
<APIKey>APIKey</APIKey>
<AESKey>AESKey</AESKey>
<AESVI>AESVI</AESVI>
</MemberCenter>
<ChildSystems>
<ChildSystem>
<Name>Content</Name>
<ControllerName>ContentManager</ControllerName>
</ChildSystem>
<ChildSystem>
<Name>Image</Name>
<ControllerName>ImageManager</ControllerName>
</ChildSystem>
<ChildSystem>
<Name>Comment</Name>
<ControllerName>CommentManager</ControllerName>
</ChildSystem>
<ChildSystem>
<Name>Vote</Name>
<ControllerName>VoteManager</ControllerName>
</ChildSystem>
</ChildSystems>
</OPsystemConfig>
</configuration>
XML增，刪，改，查
代碼如下:
private string docName = string.Empty;//配置文件路徑
#region ISystemModuleConfigService 成員
/// <summary>
/// 添加
/// </summary>
/// <param name="name"></param>
/// <param name="controllerName"></param>
/// <returns></returns>
public bool Add(string name, string controllerName)
{
XDocument xDoc = Load(docName);
if (IsExist(name))
{
xDoc.Element("configuration").Element("OPsystemConfig").Element("ChildSystems").Add(new XElement("ChildSystem",
new XElement("Name",name),
new XElement("ControllerName",controllerName)));
xDoc.Save(docName);
return true;
}
return false;
}
/// <summary>
/// 修改
/// </summary>
/// <param name="name"></param>
/// <param name="controllerName"></param>
/// <returns></returns>
public bool Modify(string name, string controllerName)
{
XDocument xDoc = Load(docName);
if (!IsExist(name))
{
var query = from Opsystem in xDoc.Descendants("ChildSystem")
where Opsystem.Element("Name").Value == name
select Opsystem;
foreach (XElement item in query)
{
item.Element("ControllerName").Value = controllerName;
}
xDoc.Save(docName);
return true;
}
return false;
}
/// <summary>
/// 刪除
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public bool Remove(string name)
{
XDocument xDoc = Load(docName);
if (!IsExist(name))
{
var query = from Opsystem in xDoc.Descendants("ChildSystem")
