/// <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>
/// 再操作の確認
/// </summary>
protected void CheckReentrancy()
{
if (this.watcher.IsInScope)
{
var invocationCount = 0;
if (DataPropertyChanging != null)
{
invocationCount += DataPropertyChanging.GetInvocationList().Length;
}
if (_DataPropertyChanging != null)
{
invocationCount += _DataPropertyChanging.GetInvocationList().Length;
}
if (invocationCount > 1)
{
throw new InvalidOperationException(string.Format(Echo.Properties.Resources.MESSAGE_EXCEPTION_INVALID_OPERATION_REENTRANCY_FORMAT, nameof(DataProperty <T>), nameof(DataPropertyChanging)));
}
}
}
