private void Add()
{
var current = _items.FirstOrDefault(item => !item.IsUnselectable && item.IsCurrent);
if (current != null)
{
current.IsCurrent = false;
}
var newItem = new EditComboBoxItem()
{
Title = String.Format("{0}{1}", newItemPrefix, _items.Count(item => item.Title.StartsWith(newItemPrefix)) + 1),
IsUnselectable = false,
IsCurrent = true,
};
newItem.SelectAction = () => Select(newItem);
newItem.PropertyChanged += (o, e) =>
{
if (e.PropertyName == EditComboBoxItem.TitlePropertyName)
{
Rename(o as EditComboBoxItem);
}
};
_items.Add(newItem);
if (AddAction != null)
{
AddAction(newItem);
}
}
private void Rename(EditComboBoxItem item)
{
if (RenameAction != null)
{
RenameAction(item);
}
}
private void Select(EditComboBoxItem item)
{
var currentItem = _items.FirstOrDefault(i => i.IsCurrent);
if (currentItem != null)
{
currentItem.IsCurrent = false;
}
item.IsCurrent = true;
if (SelectAction != null)
{
SelectAction(item);
}
}
private void Del()
{
var oldItem = _items.FirstOrDefault(item => !item.IsUndeletable && item.IsCurrent == true);
EditComboBoxItem oldItemBackup = null;
if (oldItem != null)
{
oldItemBackup = new EditComboBoxItem()
{
Title = oldItem.Title,
LinkedObject = oldItem.LinkedObject
}
}
;
_items.RemoveAll(item => !item.IsUndeletable && item.IsCurrent == true);
if (DelAction != null)
{
DelAction(oldItemBackup);
}
}