public virtual void OnAddAction(String text)
{
while (true)
{
if (TryConvertToItem(text, out T item) && IsValidItem(item))
{
TryInsert(SelectedIndices.OfType <Int32>().FirstOr(SelectedIndices.Count), item);
}
else
{
ItemForm.TextBox.Clear();
ItemForm.TextBox.Text = text;
if (ItemForm.ShowDialog() == DialogResult.OK)
{
text = ItemForm.TextBox.Text;
continue;
}
}
break;
}
}
public virtual void AddAction(ListViewItem item)
{
Insert(SelectedIndices.OfType <Int32>().FirstOr(SelectedIndices.Count), item);
}
public virtual void OnAddAction(GenericListViewItem <T> lvitem)
{
TryInsert(SelectedIndices.OfType <Int32>().FirstOr(SelectedIndices.Count), lvitem);
}
