/// <summary>
/// This button handler creates instance of Person, validates it,
/// adds instance to ListBox, clears TextBoxes.
/// </summary>
/// <param name="sender">Object that generates this event.</param>
/// <param name="e">Arguments.</param>
private void buttonAdd_Click(object sender, EventArgs e)
{
Person person = new Person
{
FirstName = textFirstName.Text,
LastName = textLastName.Text,
EMail = textEMail.Text,
Phone = textPhone.Text
};
Validator validator = new Validator();
try
{
validator.Validate(person);
}
catch (Exception ex)
{
person = null;
GC.Collect();
MessageBox.Show(ex.Message);
return;
}
listBox1.DisplayMember = "LastName";
listBox1.Items.Add(person);
ClearTextBoxes();
}
/// <summary>
/// It creates Person's instance and adds it to ListBox.
/// </summary>
/// <param name="reader">Stream Reader.</param>
/// <param name="listBox1">Instance of ListBox.</param>
private void CreatePerson(StreamReader reader, ListBox listBox1)
{
Person person = new Person
{
FirstName = reader.ReadLine().Trim(),
LastName = reader.ReadLine().Trim(),
EMail = reader.ReadLine().Trim(),
Phone = reader.ReadLine().Trim()
};
listBox1.DisplayMember = "LastName";
listBox1.Items.Add(person);
}
/// <summary>
/// It creates Person's instance, assigns it's fields, adds it to ListBox.
/// </summary>
/// <param name="node">Node of Xml document.</param>
/// <param name="listBox1">Instance of ListBox.</param>
private void CreatePerson(XmlNode node, ListBox listBox1)
{
if (node.HasChildNodes)
{
XmlNodeList children = node.ChildNodes;
Person person = new Person
{
FirstName = children[0].InnerText,
LastName = children[1].InnerText,
EMail = children[2].InnerText,
Phone = children[3].InnerText,
};
listBox1.DisplayMember = "LastName";
listBox1.Items.Add(person);
}
}
internal void Validate(Person person)
{
Regex regex = new Regex(@"^[a-zA-Z][a-zA-Z]*");
if (regex.IsMatch(person.FirstName) == false)
throw new Exception("Fist name is not valid.");
if (regex.IsMatch(person.LastName) == false)
throw new Exception("Last name is not valid.");
regex = new Regex(@"^([\w\.\-]+)@([\w\-]+)((\.(\w){2,3})+)$");
if (regex.IsMatch(person.EMail) == false)
throw new Exception("e-mail is not valid.");
regex = new Regex(@"^[+0-9(][0-9 ()-]*");
if (regex.IsMatch(person.Phone) == false)
throw new Exception("Phone number is not valid.");
}
/// <summary>
/// It bilds nodes of Xml tree.
/// </summary>
/// <param name="p">Instance of Person.<param>
/// <param name="doc">Instance of Xml Document.<param>
private void Bild(Person p, XmlDocument doc)
{
XmlElement StartElement = doc.CreateElement("Person");
doc.DocumentElement.AppendChild(StartElement);
XmlElement newElem = doc.CreateElement("FirstName");
newElem.InnerText = p.FirstName;
StartElement.AppendChild(newElem);
newElem = doc.CreateElement("LastName");
newElem.InnerText = p.LastName;
StartElement.AppendChild(newElem);
newElem = doc.CreateElement("EMail");
newElem.InnerText = p.EMail;
StartElement.AppendChild(newElem);
newElem = doc.CreateElement("Phone");
newElem.InnerText = p.Phone;
StartElement.AppendChild(newElem);
}
