Question

first i want to let you know that i never used XML as datasource before.

i have an XML file called “answers.xml” and i need to connect gridview, formview, etc…

<?xml version="1.0"?>
<Answers>  
<AnswerSet>
    <Answer questionId="MRN">4444</Answer> 
    <Answer questionId="FName">test</Answer> 
    <Answer questionId="LName">patient</Answer> 
    <Answer questionId="AddressPt">blah blah</Answer> 
    <Answer questionId="Governorate">xxxx</Answer> 
    <Answer questionId="InitialCSF">Negative</Answer> 
    <Answer questionId="Diagnosis"></Answer> 
    <Answer questionId="Description"> </Answer>   
</AnswerSet>   
<AnswerSet> 
    <Answer questionId="MRN">1</Answer> 
    <Answer questionId="FName">1</Answer> 
    <Answer questionId="LName">1</Answer> 
    <Answer questionId="AddressPt">1</Answer> 
    <Answer questionId="InitialCSF">Positive</Answer> 
    <Answer questionId="Diagnosis">dx</Answer> 
    <Answer questionId="Description"> </Answer>   
</AnswerSet>
</Answers>

I need a way to change the data (edit / delete) in the xml file using .NET

Answer 1

If you don’t want to use an XmlDataSource control, you could also use LINQ to XML to create a datasource object from the file:

XDocument doc = XDocument.Load("somefile.xml");

var results = from answer in doc.Descendants("Answer")
              select new
              {
                  Question = answer.Attribute("questionId").Value,
                  Answer = answer.Value
              };

GridView1.DataSource = results;
GridView1.DataBind();