A simple C # class for operating XML files. Only one layer of nodes can be operated.

Using system;

Using system. xml;

 

Namespace windowsformsapplication3

{

Class xmlcontrol

{

Xmldocument xmldoc; // XML file object

Xmlelement; // XML Element

Xmltext; // XML text

Xmlnodelist xmllist; // XML list

String Surl = "\ dbset. xml ";

Public xmlcontrol ()

{

Xmldoc = new xmldocument ();

Xmldoc. Load ("\ dbset. xml ");

}

Public xmlcontrol (string sxmlurl) // xmlurl is the path of the XML file

 

No deletion method

{

Xmldoc = new xmldocument ();

Xmldoc. Load (sxmlurl );

Surl = sxmlurl;

}

Public bool addnode (string snodename, string snodevalue) // Add a node

{

Try

{

Xmlelement = xmldoc. createelement (snodename );

Xmltext = xmldoc. createtextnode (snodevalue );

Xmlelement. appendchild (xmltext );

Xmldoc. childnodes. Item (1). appendchild (xmlelement );

Xmldoc. Save (Surl );

Return true;

}

Catch

{

Return false;

}

}

Public bool updatanodevalue (string snodename, string snodevalue)

{

Try

{

Xmllist = xmldoc. getelementsbytagname (snodename );

Xmllist [0]. innertext = snodename;

Xmldoc. Save (Surl );

Return true;

}

Catch

{

Return false;

}

}

Public String selectnode (string snodename)

{

String snodevalue = NULL;

Try

{

Xmllist = xmldoc. selectnodes ("// setting/" + snodename );

Foreach (xmlnode xl in xmllist)

{

Snodevalue = XL. innertext. tostring ();

}

Return snodevalue;

}

Catch

{

Return NULL;

}

}

}

}