getting specific xml data using c# -

i have xml file:

<address>   <data2>     <person>       <empl_num>>100</empl_num>       <name>carl</name>       <id_num>1</id_num>       <isrequired>0</isrequired>     </person>     <person>       <empl_num>200</empl_num>       <name>mark</name>       <id_num>2</id_num>       <isrequired>0</isrequired>     </person>     <person>       <empl_num>300</empl_num>       <name>tanner</name>       <id_num>3</id_num>       <isrequired>0</isrequired>     </person>  </data2> </address> 

i have textbox , button. when type "1" , press button problem how can display xml data datagridview value of textbox show data has id_num = textbox.text

expected output datagrid:

if txtbox1.text = 1:   empl_num  |  name  |  id_num  |  isrequired                      100     |  carl  |    1     |      0  if txtbox1.text = 3:   empl_num  |  name  |  id_num  |  isrequired                      300     | tanner |    3     |      0 

try this:

class program {     static void main(string[] args)     {         // read xml somewhere         var xml = file.readalltext("address.xml");         xdocument xmldoc = xdocument.parse(xml);          // element id         var element = getelementbyid(xmldoc, 1);          // deserialize element         var xmlserializer = new xmlserializer(typeof(person));         var person = (person)xmlserializer.deserialize(element.createreader());          // continue work person     }      private static xelement getelementbyid(xdocument xmldoc, string id)     {         // elements according xml file         var element = xmldoc.element("address")             .elements("data2")             .elements("person")             .single(x => x.element("id_num").value == id);         return element;     } }   /// <summary> /// used deserialization /// </summary> public class person {     public int empl_num { get; set; }     public string name { get; set; }     public int id_num { get; set; }     public bool isrequired { get; set; } }