public void ClearOldItems()
{
if (OldItems != null)
{
OldItems.Clear();
}
}
public override int GetHashCode()
{
unchecked
{
var hashCode = (int)Action;
hashCode = (hashCode * 397) ^ (NewItems != null ? NewItems.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (OldItems != null ? OldItems.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ NewStartingIndex;
hashCode = (hashCode * 397) ^ OldStartingIndex;
return(hashCode);
}
}
/// <summary>
/// Tries to remove the item from old items
/// </summary>
/// <param name="index">The item index.</param>
/// <param name="item">The item.</param>
/// <returns><c>true</c> if removed, otherwise <c>false</c>.</returns>
/// <remarks>This code is only need by <c>FastBindingList{T}</c>.</remarks>
public bool TryRemoveItemFromOldItems(int index, T item)
{
if (Mode == SuspensionMode.None || Mode == SuspensionMode.Mixed)
{
var oldIdx = OldItems.LastIndexOf(item);
if (oldIdx > -1 && OldItemIndices[oldIdx] == index)
{
OldItems.RemoveAt(oldIdx);
OldItemIndices.RemoveAt(oldIdx);
for (var i = 0; i < OldItemIndices.Count; i++)
{
if (OldItemIndices[i] >= index)
{
OldItemIndices[i]++;
}
}
return(true);
}
}
return(false);
}
public override string ToString()
{
return(String.Format("{0}: +[{1}], -[{2}]",
Action, NewItems.StringJoin(), OldItems.StringJoin()));
}
