public new void RemoveAt(int index)
{
StyleListBoxItem temp = (StyleListBoxItem)List[index];
List.RemoveAt(index);
// Change index of other StyleListBoxItem
for (int i = index; i < List.Count; i++)
{
((StyleListBoxItem)List[i]).Index--;
}
if (OnItemRemoved != null)
{
OnItemRemoved(listbox, new EventItemArgs(temp));
}
}
public void Add(StyleListBoxItem obj)
{
// Fill default style value to new item
obj.SuspendUpdateChange();
obj.InheritedStyle = listbox.DefaultItemStyle;
obj.ResumeUpdateChange();
// Fill index to new item
obj.Control = listbox;
obj.Index = List.Count;
// Monitor the changes of item property
obj.OnItemChanged += OnChanged;
obj.OnItemSelectionChanged += OnSelectionChanged;
List.Add(obj);
// Raise AddItem event
if (OnItemAdded != null)
{
OnItemAdded(listbox, new EventItemArgs(obj));
}
}
public void Remove(StyleListBoxItem obj)
{
RemoveAt(obj.Index);
}
internal void Add(StyleListBoxItem item)
{
List.Add(item);
}
internal void Remove(StyleListBoxItem item)
{
List.Remove(item);
}
/// <summary>
/// Handles item selection when mouse is clicked on the item
/// according to the SelectionMode rules.
/// </summary>
protected override void OnMouseClick(MouseEventArgs e)
{
if (!isCanUpdate)
{
return;
}
if (e.Button == MouseButtons.Left && SelectionMode != SelectionMode.None)
{
StyleListBoxItem item = GetItemFromPoint(e.Location);
if (item != null)
{
SuspendUpdate();
if (SelectionMode == SelectionMode.One)
{
item.Selected = true;
}
else if (SelectionMode == SelectionMode.MultiSimple)
{
item.Selected = !item.Selected;
}
else if (SelectionMode == SelectionMode.MultiExtended)
{
if (Control.ModifierKeys.HasFlag(Keys.Control))
{
item.Selected = !item.Selected;
}
else if (Control.ModifierKeys.HasFlag(Keys.Shift))
{
// check if lastSelectedIndex is a valid index
if (lastSelectedIndex < itemList.Count)
{
ClearSelected();
int startIndex = Math.Min(lastSelectedIndex, item.Index);
int endIndex = Math.Max(lastSelectedIndex, item.Index);
for (int i = startIndex; i <= endIndex; i++)
{
itemList[i].SetSelected(true);
itemSelectedList.Add(itemList[i]);
}
_selectedIndex = item.Index;
}
}
else
{
ClearSelected();
item.Selected = true;
}
}
lastSelectedIndex = item.Index;
ResumeUpdate();
Update();
if (e.Clicks == 1)
{
if (ItemClicked != null)
{
ItemClicked(this, new EventItemArgs(item));
}
}
else if (e.Clicks > 1)
{
if (ItemDoubleClicked != null)
{
ItemDoubleClicked(this, new EventItemArgs(item));
}
}
}
}
base.OnMouseClick(e);
}
public EventItemChangedArgs(StyleListBoxItem item)
{
this.Item = item;
}