protected override void OnAttached()
{
var associatedObject = AssociatedObject;
if (associatedObject == null)
{
throw new InvalidOperationException();
}
base.OnAttached();
associatedObject.Closing += (sender, e) =>
{
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
if (CanClose)
{
return;
}
if (CloseCanceledCallbackCommand != null && CloseCanceledCallbackCommand.CanExecute(null))
{
CloseCanceledCallbackCommand.Execute(null);
}
if (CloseCanceledCallbackMethodTarget != null && CloseCanceledCallbackMethodName != null)
{
_callbackMethod.Invoke(CloseCanceledCallbackMethodTarget, CloseCanceledCallbackMethodName);
}
e.Cancel = !this.CanClose;
};
}
protected override void OnAttached()
{
base.OnAttached();
AssociatedObject.Closing += (sender, e) =>
{
if (!CanClose)
{
if (CloseCanceledCallbackCommand != null && CloseCanceledCallbackCommand.CanExecute(null))
{
CloseCanceledCallbackCommand.Execute(null);
}
if (CloseCanceledCallbackMethodTarget != null && CloseCanceledCallbackMethodName != null)
{
_callbackMethod.Invoke(CloseCanceledCallbackMethodTarget, CloseCanceledCallbackMethodName);
}
e.Cancel = true;
}
};
}