/// <summary>
/// プロパティ配列変更前の処理
/// </summary>
protected virtual void OnDataPropertyCollectionChanging(DataPropertyCollectionChangingEventArgs <T> e)
{
if (DataPropertyCollectionChanging != null || _DataPropertyCollectionChanging != null)
{
using (BlockReentrancy())
{
DataPropertyCollectionChanging?.Invoke(this, e);
_DataPropertyCollectionChanging?.Invoke(this, e);
}
}
}
/// <summary>
/// 交換の操作
/// </summary>
protected virtual void SwapItem(int index0, int index1)
{
CheckReentrancy();
var operation = GenerateSwapOperation(index0, index1);
var e = new DataPropertyCollectionChangingEventArgs <T>(this, operation);
OnDataPropertyCollectionChanging(e);
if (!e.Cancel)
{
if (Execute(e.Operations))
{
OnDataPropertyCollectionChanged(new DataPropertyCollectionChangedEventArgs <T>(this, e.Operations, e.InputOperations));
}
}
}
/// <summary>
/// 移動の操作
/// </summary>
protected virtual void MoveItem(int oldIndex, int newIndex)
{
CheckReentrancy();
var operation = GenerateMoveOperation(oldIndex, newIndex);
var e = new DataPropertyCollectionChangingEventArgs <T>(this, operation);
OnDataPropertyCollectionChanging(e);
if (!e.Cancel)
{
if (Execute(e.Operations))
{
OnDataPropertyCollectionChanged(new DataPropertyCollectionChangedEventArgs <T>(this, e.Operations, e.InputOperations));
}
}
}
/// <summary>
/// 連続削除の操作
/// </summary>
protected virtual void RemoveItems(int index, int count)
{
if (items.Any())
{
CheckReentrancy();
var operations = new List <DataPropertyCollectionChangeOperation <T> >(Enumerable.Range(index, count).Reverse().Select(_ => GenerateRemoveOperation(_)));
var e = new DataPropertyCollectionChangingEventArgs <T>(this, operations);
OnDataPropertyCollectionChanging(e);
if (!e.Cancel)
{
if (Execute(e.Operations))
{
OnDataPropertyCollectionChanged(new DataPropertyCollectionChangedEventArgs <T>(this, e.Operations, e.InputOperations));
}
}
}
}
/// <summary>
/// 連続設定の操作
/// </summary>
protected virtual void SetItems(int index, IEnumerable <T> values)
{
if (items.Any())
{
CheckReentrancy();
var operations = new List <DataPropertyCollectionChangeOperation <T> >();
foreach (var value in values)
{
operations.Add(GenerateSetOperation(index++, value));
}
var e = new DataPropertyCollectionChangingEventArgs <T>(this, operations);
OnDataPropertyCollectionChanging(e);
if (!e.Cancel)
{
if (Execute(e.Operations))
{
OnDataPropertyCollectionChanged(new DataPropertyCollectionChangedEventArgs <T>(this, e.Operations, e.InputOperations));
}
}
}
}
