how to write data to XML file in asp.net c#?

Question

I am trying to write the user input data to the XML file in asp.net/C#. the data will type in textbox.

The C# code:

int i = 0;
protected void submit(object sender,EventArgs e)
{
    XmlDocument xdoc = new XmlDocument();
    xdoc.Load(Server.MapPath("~/XMLFile1.xml"));
    Console.WriteLine(xdoc);
    XmlElement contact = xdoc.CreateElement("Contact");

    XmlAttribute Count = xdoc.CreateAttribute("Count");
    i = i + 1;
    Count.Value = i.ToString();

    XmlElement Name = xdoc.CreateElement("Name");
    XmlText xmlName = xdoc.CreateTextNode(name.Text);

    XmlElement EmailId = xdoc.CreateElement("EmailId");
    XmlText xmlemail = xdoc.CreateTextNode(emailId.Text);

    XmlElement Comments = xdoc.CreateElement("Comments");
    XmlText xmlcomment = xdoc.CreateTextNode(comments.Text);

    Name.AppendChild(xmlName);
    EmailId.AppendChild(xmlemail);
    Comments.AppendChild(xmlcomment);

    contact.Attributes.Append(Count);
    contact.AppendChild(Name);
    contact.AppendChild(EmailId);
    contact.AppendChild(Comments);

    xdoc.DocumentElement.AppendChild(contact);

    xdoc.Save(Server.MapPath("~/XMLFile1.xml"));

    Response.Redirect(Request.Url.AbsoluteUri);
}

No errors are displaying not storing the values.

Note that in ASP.Net you will need some kind of synchronization on the file to deal with concurrent reads/writes. A DB or unique files would fix this. — Alex K.
– Alex K., Commented Jun 25, 2019 at 11:05
You are reading & writing the same file. Please explain what you are trying to acheive — Nareen Babu
– Nareen Babu, Commented Jun 25, 2019 at 11:10
stackoverflow.com/questions/3875131/…, stackoverflow.com/questions/7931650/…, stackoverflow.com/questions/20922835/… — xdtTransform
– xdtTransform, Commented Jun 25, 2019 at 11:29

Skaria Thomas · Accepted Answer · 2019-06-25 12:18:58Z

0

Hope in the below code, runtime error was throwing.

xdoc.Load(Server.MapPath("~/XMLFile1.xml"));

2 reasons for the error.

XMLFile1.xml not available in the root directory.
Basic xml structure not available in the xml file.

Basic xml structure:

<?xml version="1.0" encoding="utf-8"?>
<Contacts>

</Contacts>

answered Jun 25, 2019 at 12:18

Skaria Thomas

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