Dotnet Summary (4)--xml reading and writing

XML read 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;
}


Write
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;
}