Update the xml database using C#

Question

I have created a login form and the login details like username and password gets stored in xml database.

Now when a particular user wants to change his/her password. how to do that using xml database in C#. I don't have much idea on xml database. please help me out at the earliest.

Change password form looks like this

User name : 
Old password:
new password:
Confirm password:

Change(button)

when the user provides the necessary information and clicks the change button. the old password which gets stored in xml database should get replaced by the new password..

Do not forget file locking if you implement this in a simultaneous multi-user environment... — Mr47, Oct 19 '11 at 08:31

score 0 · Answer 1 · edited May 23 '17 at 11:47

0

See how to change xml value file using c#

and How To Modify and Save XML with the XmlDocument Class in the .NET Framework

edited May 23 '17 at 11:47

Community

1
1

answered Oct 19 '11 at 06:39

Haris Hasan

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score 0 · Answer 2 · answered Oct 19 '11 at 08:52

private void btnLogIn_Click(object sender, EventArgs e)
    {
        if (checkBox_Remember.Checked)
                {
                    UpdateAppSettings_("Remember", "1");
                    UpdateAppSettings_("UserName", User.UserName);
                    UpdateAppSettings_("Password", password);
                }
    }
private void UpdateAppSettings_(string KeyName, string KeyValue)
    {
        XmlDocument XmlDoc = new XmlDocument();
        XmlDoc.Load(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);
        foreach (XmlElement xElement in XmlDoc.DocumentElement)
        {
            if (xElement.Name == "appSettings")
            {
                foreach (XmlNode xNode in xElement.ChildNodes)
                {
                    if (xNode.Attributes[0].Value == KeyName)
                    {
                        xNode.Attributes[1].Value = KeyValue;
                    }
                }
            }
        }
        XmlDoc.Save(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);
    }

Update the xml database using C#

2 Answers2