/// <summary>
/// Determines the index of a specific <see cref="ToolButtonMenuItem"/> in the current instance.
/// </summary>
/// <param name="item">The <see cref="ToolButtonMenuItem"/> to locate in the current instance.</param>
/// <returns>The index of value if found in the current instance; otherwise, -1.</returns>
public int IndexOf(ToolButtonMenuItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
return(_items.IndexOf(item));
}
/// <summary>
/// Determines whether a <see cref="ToolButtonMenuItem"/> is in the collection.
/// </summary>
/// <param name="item">The <see cref="ToolButtonMenuItem"/> to locate in the collection. The element to locate can be a null reference.</param>
/// <returns>true if value is found in the collection; otherwise, false.</returns>
public bool Contains(ToolButtonMenuItem item)
{
if (item == null)
{
return(false);
}
return(_items.Contains(item));
}
/// <summary>
/// Adds a <see cref="ToolButtonMenuItem"/> to the collection.
/// </summary>
/// <param name="item">The <see cref="ToolButtonMenuItem"/> to add to the collection.</param>
/// <returns>The position into which the new element was inserted.</returns>
public int Add(ToolButtonMenuItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
if (_isTrackingViewState)
{
((IStateManager)item).TrackViewState();
item.SetDirty();
}
return(_items.Add(item));
}
/// <summary>
/// Inserts a <see cref="ToolButtonMenuItem"/> to the collection at the specified position.
/// </summary>
/// <param name="index">The zero-based index at which value should be inserted.</param>
/// <param name="item">The <see cref="ToolButtonMenuItem"/> to insert into the Collection.</param>
public void Insert(int index, ToolButtonMenuItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
_items.Insert(index, item);
if (_isTrackingViewState)
{
((IStateManager)item).TrackViewState();
_saveAll = true;
}
}
/// <summary>
/// When implemented by a class, saves the changes to a server control's view state to an
/// <see cref="T:System.Object"/> .
/// </summary>
/// <returns>
/// The <see langword="Object"/> that contains the view state changes.
/// </returns>
public object SaveViewState()
{
if (_saveAll == true)
{
// Save all items.
ArrayList states = new ArrayList(Count);
for (int i = 0; i < Count; i++)
{
ToolButtonMenuItem toolButtonMenuItem = (ToolButtonMenuItem)_items[i];
toolButtonMenuItem.SetDirty();
states.Add(((IStateManager)toolButtonMenuItem).SaveViewState());
}
if (states.Count > 0)
{
return(states);
}
else
{
return(null);
}
}
else
{
// Save only the dirty items.
ArrayList indices = new ArrayList();
ArrayList states = new ArrayList();
for (int i = 0; i < Count; i++)
{
ToolButtonMenuItem toolButtonMenuItem = (ToolButtonMenuItem)_items[i];
object state = ((IStateManager)toolButtonMenuItem).SaveViewState();
if (state != null)
{
states.Add(state);
indices.Add(i);
}
}
if (indices.Count > 0)
{
return(new Pair(indices, states));
}
}
return(null);
}
/// <summary>
/// Removes the first occurrence of a specific <see cref="ToolButtonMenuItem"/> from the collection.
/// </summary>
/// <param name="item">The <see cref="ToolButtonMenuItem"/> to remove from the collection.</param>
public void Remove(ToolButtonMenuItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
int index = IndexOf(item);
if (index >= 0)
{
RemoveAt(index);
}
if (_isTrackingViewState)
{
_saveAll = true;
}
}
void IStateManager.LoadViewState(object savedState)
{
if (savedState == null)
{
return;
}
if (savedState is Pair)
{
Pair p = (Pair)savedState;
ArrayList indices = (ArrayList)p.First;
ArrayList states = (ArrayList)p.Second;
for (int i = 0; i < indices.Count; i++)
{
int index = (int)indices[i];
if (index < this.Count)
{
((IStateManager)_items[index]).LoadViewState(states[i]);
}
else
{
ToolButtonMenuItem toolButtonMenuItem = new ToolButtonMenuItem();
Add(toolButtonMenuItem);
((IStateManager)toolButtonMenuItem).LoadViewState(states[i]);
}
}
}
else if (savedState is ArrayList)
{
_saveAll = true;
ArrayList states = (ArrayList)savedState;
_items = new ArrayList(states.Count);
for (int i = 0; i < states.Count; i++)
{
ToolButtonMenuItem toolButtonMenuItem = new ToolButtonMenuItem();
Add(toolButtonMenuItem);
((IStateManager)toolButtonMenuItem).LoadViewState(states[i]);
}
}
}
