how to edit a single node in a xml file

[speedriser]

Hi
I have a xml file as follows
<?xml version="1.0" encoding="utf-8"?>
<MeasuresList>
<Measures>
<Parameters>Target Achievement</Parameters>
<Weightage>50%</Weightage>
</Measures>
<Measures>
<Parameters>Contribution% (as per PCPI)</Parameters>
<Weightage>20%</Weightage>
</Measures>
<Measures>
<Parameters>DSO Multipliers</Parameters>
<Weightage>10%</Weightage>
</Measures>
<Measures>
<Parameters>ecdi parameter</Parameters>
<Weightage>60%</Weightage>
</Measures>
<Measures>
<Parameters>sathish</Parameters>
<Weightage>22</Weightage>
</Measures>
<Measures>
<Parameters>shyam</Parameters>
<Weightage>60</Weightage>
</Measures>
</MeasuresList>



i have bounded this sml file in a datagrid and have placed a radio button in each row.. when i click the radio button of the third row in the datagrid
this
<Measures>
<Parameters>DSO Multipliers</Parameters>
<Weightage>10%</Weightage>
</Measures>
particular values must be delted pls give me c# code for this immiditely

[dip_developer]

Hi
I have a xml file as follows
<?xml version="1.0" encoding="utf-8"?>
<MeasuresList>
<Measures>
<Parameters>Target Achievement</Parameters>
<Weightage>50%</Weightage>
</Measures>
<Measures>
<Parameters>Contribution% (as per PCPI)</Parameters>
<Weightage>20%</Weightage>
</Measures>
<Measures>
<Parameters>DSO Multipliers</Parameters>
<Weightage>10%</Weightage>
</Measures>
<Measures>
<Parameters>ecdi parameter</Parameters>
<Weightage>60%</Weightage>
</Measures>
<Measures>
<Parameters>sathish</Parameters>
<Weightage>22</Weightage>
</Measures>
<Measures>
<Parameters>shyam</Parameters>
<Weightage>60</Weightage>
</Measures>
</MeasuresList>



i have bounded this sml file in a datagrid and have placed a radio button in each row.. when i click the radio button of the third row in the datagrid
this
<Measures>
<Parameters>DSO Multipliers</Parameters>
<Weightage>10%</Weightage>
</Measures>
particular values must be delted pls give me c# code for this immiditely

 
{ 
    Xml.XmlDocument MyXMLDocument = new Xml.XmlDocument(); 
    Xml.XmlNode myMainNode; 
 
 
 
    //write code here to Load the XML document 
 
 
    Xml.XmlNode myNode = myMainNode.SelectSingleNode("item1"); 
    if (myNode != null) { 
        myNode.InnerText = "some other value"; 
    } 
}