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POListBox doesnt show any results
 

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  1. POListBox doesnt show any results
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    <p>I'm trying to add an array of strings that holds information about people to a ListBox but i cant get it to show anything and i really dont know why.</p> <p>This is the first class that is called when the button to add contacts to the list is clicked.</p> <pre><code>public partial class MainForm : Form { private ContactManager m_contacts; public MainForm() { InitializeComponent(); m_contacts = new ContactManager(); InitializeGUI(); } private void InitializeGUI() { txtFirstName.Text = string.Empty; txtLastName.Text = string.Empty; txtStreet.Text = string.Empty; txtCity.Text = string.Empty; txtZipCode.Text = string.Empty; cmbCountry.Items.AddRange(Enum.GetNames(typeof(Countries))); cmbCountry.DropDownStyle = ComboBoxStyle.DropDownList; cmbCountry.SelectedIndex = (int)Countries.Sverige; UpdateGUI(); } private bool ReadInput(out Contact contact) { // skapar ett lokalt objekt av Contact-klassen contact = new Contact(); // Lägger in ReadAdress till ett objekt i klassen Adress. Address adr = ReadAddress(); contact.AddressData = adr; // skickar adress till contact-objekt //bool readNameOK = ReadName(); // ReadName är OK så skickas det till AddContact. if (ReadName()) { m_contacts.AddContact(contact); } return ReadName(); } // ReadInput private bool ReadName() { Contact contact = new Contact(); contact.FirstName = txtFirstName.Text; contact.LastName = txtLastName.Text; bool firstname = false; bool lastname = false; if (!InputUtility.ValidateString(contact.FirstName)) { MessageBox.Show("You must enter a first name with atleast one character (not a blank)", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error); txtFirstName.Focus(); txtFirstName.Text = " "; txtFirstName.SelectAll(); firstname = false; } else if (!InputUtility.ValidateString(contact.LastName)) { MessageBox.Show("You must enter a last name with atleast one character (not a blank)", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error); txtLastName.Focus(); txtLastName.Text = " "; txtLastName.SelectAll(); lastname = false; } return firstname &amp;&amp; lastname; } private Address ReadAddress() { Address address = new Address(); address.Street = txtStreet.Text; address.City = txtCity.Text; address.ZipCode = txtZipCode.Text; address.Country = (Countries)cmbCountry.SelectedIndex; return address; } private void button1_Click(object sender, EventArgs e) { Contact contact; if (ReadInput(out contact)) { UpdateGUI(); } } private void UpdateGUI() { lstContacts.Items.Clear(); lstContacts.Items.AddRange(m_contacts.GetContactsInfo()); lblCount.Text = m_contacts.Count().ToString(); } private void lstContacts_SelectedIndexChanged(object sender, EventArgs e) { UpdateContactInfoFromRegistry(); } private void UpdateContactInfoFromRegistry() { Contact contact = m_contacts.GetContact(lstContacts.SelectedIndex); cmbCountry.SelectedIndex = (int)contact.AddressData.Country; txtFirstName.Text = contact.FirstName; txtLastName.Text = contact.LastName; txtCity.Text = contact.AddressData.City; txtStreet.Text = contact.AddressData.Street; txtZipCode.Text = contact.AddressData.ZipCode; } } </code></pre> <p>This class then calls this class </p> <pre><code>public class ContactManager { private List&lt;Contact&gt; m_contactRegistry; public ContactManager() { m_contactRegistry = new List&lt;Contact&gt;(); } public int Count() { int count = m_contactRegistry.Count(); return count; } public bool CheckIndex(int index) { if (index &gt;= 0 &amp;&amp; index &lt; m_contactRegistry.Count()) return true; else return false; } public bool AddContact(string firstName, string lastName, Address addressIn) { Contact contactObj = new Contact(); bool result = false; if (!result) { contactObj.FirstName = firstName; contactObj.LastName = lastName; contactObj.AddressData = addressIn; m_contactRegistry.Add(contactObj); result = true; } return result; } public bool AddContact(Contact contactIn) { if (contactIn == null) { return false; } else { m_contactRegistry.Add(contactIn); return true; } } public bool changeContact(Contact contactIn, int index) { if (CheckIndex(index)) { Contact contact = (Contact)m_contactRegistry[index]; //contact.ToString = contactIn; return true; } else return false; } public bool DeleteContact(int index) { if (CheckIndex(index)) { m_contactRegistry.RemoveAt(index); return true; } else return false; } public Contact GetContact(int index) { if (!CheckIndex(index)) return null; else return m_contactRegistry[index]; } public string[] GetContactsInfo() { string[] strInfoStrings = new string[m_contactRegistry.Count]; int i = 0; foreach (Contact contactObj in m_contactRegistry) { strInfoStrings[i++] = contactObj.ToString(); } return strInfoStrings; } } </code></pre> <p>Any help regarding why the arrays wont show up in the listbox would be much appriciated, thanks.</p>
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