public cUser GetUserByName(String FirstName, String Lastname)
{
var users = Users;
cUser result = (from usr in users
where usr.FirstName == FirstName && usr.LastName == Lastname
select usr).FirstOrDefault();
return(result);
}
public void AddUser(cUser newUser)
{
var users = Users;
if ((from usr in users where usr.Login == newUser.Login select usr.Id).ToList().Count > 0)
{
throw new IOException("Login already exists in xml file");
}
List <int> IDs = (from u in users
select Convert.ToInt32(u.Id)).ToList(); // generate new ID
int newId;
if (IDs.Count == 0)
{
newId = 1;
}
else
{
newId = IDs.Max();
newUser.Id = newId + 1;
}
XmlDocument doc = new XmlDocument();
UsersStreamProvider.StreamSnapshot.Position = 0;
doc.Load(UsersStreamProvider.StreamSnapshot);
XmlNode root = doc.DocumentElement;
XmlElement newUserElement = doc.CreateElement("User");
XmlAttribute idAttr = doc.CreateAttribute("id");
idAttr.Value = $"{newUser.Id}";
newUserElement.Attributes.Append(idAttr);
XmlElement newUserLoginElement = doc.CreateElement("Login");
newUserLoginElement.InnerText = $"{newUser.Login}";
newUserElement.AppendChild(newUserLoginElement);
XmlElement newUserFNameElement = doc.CreateElement("FirstName");
newUserFNameElement.InnerText = $"{newUser.FirstName}";
newUserElement.AppendChild(newUserFNameElement);
XmlElement newUserLNameElement = doc.CreateElement("LastName");
newUserLNameElement.InnerText = $"{newUser.LastName}";
newUserElement.AppendChild(newUserLNameElement);
XmlElement newUserPasswordElement = doc.CreateElement("Password");
newUserPasswordElement.InnerText = $"{newUser.PasswordPublic}";
newUserElement.AppendChild(newUserPasswordElement);
root.AppendChild(newUserElement);
UsersStreamProvider.StreamSnapshot.Position = 0;
doc.Save(UsersStreamProvider.StreamSnapshot);
Users = GetUsersFromSnapshot().Users;
}
