/// <summary>
/// プロパティ変更前の処理
/// </summary>
protected virtual void OnDataPropertyChanging(DataPropertyChangingEventArgs <T> e)
{
if (DataPropertyChanging != null || _DataPropertyChanging != null)
{
using (BlockReentrancy())
{
DataPropertyChanging?.Invoke(this, e);
_DataPropertyChanging?.Invoke(this, e);
}
}
}
/// <summary>
/// 設定の操作
/// </summary>
protected virtual void SetValue(T value)
{
var oldValue = ValueCore;
if (!Equals(value, oldValue))
{
CheckReentrancy();
var e = new DataPropertyChangingEventArgs <T>(this, value, oldValue);
OnDataPropertyChanging(e);
if (!e.Cancel)
{
var newValue = e.NewValue;
if (!Equals(newValue, oldValue))
{
ValueCore = newValue;
OnDataPropertyChanged(new DataPropertyChangedEventArgs <T>(this, newValue, value, oldValue));
}
}
}
}