c# - Read xml from file -


i got little problem reading information xml file...

the file passed me has thousands of lines. im interested in 300 - 400 of lines. don't need write data xml when user finished operation , data read can stored in list<string>.

i found solutions on net using xmltextreader read data. wouldnt have create class , use serializer. seems im using xmltextreader wrong. maybe can me...

this how xml looks like:

<?xml version="1.0" encoding="utf-8"?> <projectconfiguration xmlns:xsd="http://www.w3.org/2001/xmlschema" xsi="http://www.w3.org/2001/xmlschema-instance">   <projectlists xmlns="...">     <projectlist>   ... // not interested in data    </projectlist>   <projectlist>   <listnode>     <name>test_environment</name>     <children>       <listnode>         <name>yyy</name>         <children>           <listnode>             <name>205 (st)</name>             <children>               <listnode>                 <name>098-0031</name>                 <children />               </listnode>               <listnode>                 <name>098-0032</name>                 <children />               </listnode>               //more listnodes...             </children>           </listnode>           <listnode>             <name>old</name>             <children>               <listnode>                 <name>w098-32</name>                 <children />               </listnode>             </children>           </listnode>         </children>       </listnode>       <listnode>         <name>xxx</name>         <children />       </listnode>       <listnode>         <name>098-0001</name>         <children />       </listnode>       <listnode>         <name>098-0011</name>         <children />       </listnode>       // more list nodes     </children>   </listnode>   <listnode>     // more list nodes   </listnode> </projectlist> <projectlist>   //more uninteresting projectlists... </projectlist>

i'm interested in value of inner name elements (the first 2 "098-0031" , "098-0032").

and code:

while (reader.read()) {             switch (reader.nodetype) {                 case xmlnodetype.element:                     {                         if (reader.name == "name") {                             reader.read();                             if (reader.value == "test_environment") {                                 reader.readtodescendant("children");                                 if (reader.name == "children") {                                     reader.readtodescendant("children");                                  }                             }                         }                     }                     break;             }         }

but condition reader.name == "children" never fullfilled... can explain me why. , maybe show me easy way store values in list<string>? in advance!

edit: edited xml. sorry hard filter unnecassary confusing parts xml...

static void getmostinnername() {     string xml = @"<projectconfiguration xmlns:xsd=""http://www.w3.org/2001/xmlschema"" xsi=""http://www.w3.org/2001/xmlschema-instance""> <projectlists>    <projectlist> <listnode> <name>test_environment</name> <children> <listnode> <name>yyy</name> <children> <listnode> <name>205 (st)</name> <children> <listnode> <name>098-0031</name> <children /> </listnode> <listnode> <name>098-0032</name> <children /> </listnode> </children> </listnode> <listnode> <name>old</name> <children>     <listnode>     <name>w098-32</name>     <children />     </listnode> </children> </listnode> </children> </listnode> <listnode> <name>xxx</name> <children> <listnode> <name>098-0001</name> <children /> </listnode> <listnode> <name>098-0011</name> <children /> </listnode> </children> </listnode> // more list nodes </children> </listnode> </projectlist></projectlists> </projectconfiguration>";     xelement root = xelement.parse(xml).element("projectlists");     //var xmlns = root.getdefaultnamespace();     //console.writeline(xmlns);     var eles = root.elements("projectlist").selectmany(x => x.elements("listnode"));     list<string> list = new list<string>();     foreach (var ele in eles)     {         loop(ele, list);     }     list.foreach(x =>     {         console.writeline(x);     }); } static void loop(xelement ele, list<string> list) {     var child = ele.element("children");     if (child != null && child.haselements)     {         foreach (var e in child.elements("listnode"))         {             loop(e, list);         }     }     else     {         list.add(ele.element("name").value);     } }

because xml has many node projectlist,so used selectmany here,and add root element have test,the last output is

098-0031 098-0032 w098-32 098-0001 098-0011

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