Dotnet总结(4)--xml读写

王朝c#·作者佚名  2006-12-17
窄屏简体版  字體: |||超大  

读xml,

public static string ReadXMLConfig(string strFileName, string sKey)

{

// string strFileName = 'Brand.exe.config';

XmlDocument oXmlDocument = new XmlDocument();

string strReturn='';

try

{

oXmlDocument.Load(Application.StartupPath+'\\'+strFileName);

XmlNodeList oXmlNodeList = oXmlDocument.DocumentElement.ChildNodes;

foreach (XmlElement oXmlElement in oXmlNodeList)

{

if (oXmlElement.Name.ToLower() == 'appsettings')

{

XmlNodeList _node = oXmlElement.ChildNodes;

if (_node.Count > 0)

{

foreach (XmlElement _el in _node)

{

if (_el.Attributes['key'].InnerXml.ToLower() == sKey.ToLower())

{

strReturn = _el.Attributes['value'].Value;

break;

}

}

}

}

}

}

catch (Exception exp)

{

if (sKey.ToLower() == 'dsn')

{

strReturn = 'Connect Timeout=5;server=localhost;database=Brand;uid=sa;pwd=';

}

XmlTextWriter oXmlTextWriter = new XmlTextWriter(strFileName, new System.Text.UTF8Encoding());

oXmlTextWriter.WriteStartDocument();

oXmlTextWriter.WriteStartElement('configuration');

oXmlTextWriter.WriteStartElement('appSettings');

oXmlTextWriter.WriteStartElement('add');

oXmlTextWriter.WriteAttributeString('key', sKey);

oXmlTextWriter.WriteAttributeString('value', strReturn);

oXmlTextWriter.WriteEndElement();

oXmlTextWriter.WriteEndElement();

oXmlTextWriter.WriteEndElement();

oXmlTextWriter.WriteEndDocument();

oXmlTextWriter.Close();

}

return strReturn;

}

// 写

private string WriteWebConfig(string sKey, string sValue)

{

string strFileName = 'Brand.exe.config';

XmlDocument oXmlDocument = new XmlDocument();

try

{

oXmlDocument.Load(strFileName);

XmlNodeList oXmlNodeList = oXmlDocument.DocumentElement.ChildNodes;

foreach (XmlElement oXmlElement in oXmlNodeList)

{

if (oXmlElement.Name.ToLower() == 'appsettings')

{

XmlNodeList _node = oXmlElement.ChildNodes;

if (_node.Count > 0)

{

foreach (XmlElement _el in _node)

{

if (_el.Attributes['key'].InnerXml.ToLower() == sKey)

{

_el.Attributes['value'].Value = sValue;

break;

}

}

}

}

}

}

catch

{

return '';

}

oXmlDocument.Save(strFileName);

return sValue;

}

 
 
 
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