protected override void SetStringValue(string value)
{
var xmlDoc = new XmlDocument();
xmlDoc.LoadXml(value);
var globalMail = Constants.LoadMail(xmlDoc);
this.Mail = new ObservableCollection <MailItemViewModel>(globalMail.Select(kvp => new MailItemViewModel(kvp.Key, kvp.Value)));
this.SelectedMail = this.Mail.FirstOrDefault();
}
private void MailCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
for (var i = 0; i < this.Mail.Count; i++)
{
this.Mail[i].Index = i;
}
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (var newObject in e.NewItems)
{
var newMessage = newObject as MessageViewModel;
if (newMessage != null)
{
newMessage.PropertyChanged += this.MailIsDirtyChanged;
}
}
}
if (e.Action == NotifyCollectionChangedAction.Remove)
{
foreach (var oldObject in e.OldItems)
{
var oldMessage = oldObject as MessageViewModel;
if (oldMessage != null)
{
oldMessage.PropertyChanged -= this.MailIsDirtyChanged;
}
}
}
if (!this.Mail.Contains(this.SelectedMail))
{
this.SelectedMail = this.lastSelectedIndex < this.Mail.Count && this.lastSelectedIndex >= 0
? this.Mail[this.lastSelectedIndex] : this.Mail.LastOrDefault();
}
this.OnPropertyChanged(nameof(this.Mail));
this.OnPropertyChanged(nameof(this.IsDirty));
}
