c# - How to get the xml node value in string -

i tried below code value of particular node, while loading xml exception thrown:

exception:

data @ root level invalid. line 1, position 1.

xml

<?xml version="1.0"?> <data xmlns:xsd="http://www.w3.org/2001/xmlschema" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance">      <date>11-07-2013</date>      <start_time>pm 01:37:11</start_time>      <end_time>pm 01:37:14</end_time>      <total_time>00:00:03</total_time>      <interval_time/>     <worked_time>00:00:03</worked_time>      <short_fall>08:29:57</short_fall>      <gain_time>00:00:00</gain_time>  </data> 

c#:

xmldocument xml = new xmldocument(); filepath = @"d:\work_time_calculator\10-07-2013.xml"; xml.loadxml(filepath);  // exception occurs here  xmlnode node = xml.selectsinglenode("/data[@*]/short_fall"); string id = node["short_fall"].innertext; 

modified code

c#:

xmldocument xml = new xmldocument(); filepath = @"d:\work_time_calculator\10-07-2013.xml"; xml.load(filepath);   xmlnode node = xml.selectsinglenode("/data[@*]/short_fall"); string id = node["short_fall"].innertext; // exception occurs here ("object reference not set instance of object.") 

the problem in code xml.loadxml(filepath);

loadxml method take parameter xml data not xml file path

try code

   string xmlfile = file.readalltext(@"d:\work_time_calculator\10-07-2013.xml");                 xmldocument xmldoc = new xmldocument();                 xmldoc.loadxml(xmlfile);                 xmlnodelist nodelist = xmldoc.getelementsbytagname("short_fall");                 string short_fall=string.empty;                 foreach (xmlnode node in nodelist)                 {                     short_fall = node.innertext;                 } 

edit

seeing last edit of question found solution,

just replace below 2 line

xmlnode node = xml.selectsinglenode("/data[@*]/short_fall"); string id = node["short_fall"].innertext; // exception occurs here ("object reference not set instance of object.") 

with

string id = xml.selectsinglenode("data/short_fall").innertext; 

it should solve problem or can use solution provided earlier.