/// <summary>
/// Method is invoked when the nofitivation dependency property is changed.
/// This requires changing event hook-up on attached viewmodel to enable
/// notification event conversion from viewmodel into view.
/// </summary>
/// <param name="oldValue"></param>
/// <param name="newValue"></param>
private void OnNofitivationChange(INotifyableViewModel oldValue, INotifyableViewModel newValue)
{
if (this.mViewModel != null)
{
// Remove old link for showing notification pop-up message event
this.mViewModel.ShowNotificationMessage -= ViewModel_ShowNotificationMessage;
}
this.mViewModel = newValue;
if (this.mViewModel != null)
{
// Establish new link to show notification pop-up message event
this.mViewModel.ShowNotificationMessage += ViewModel_ShowNotificationMessage;
}
}
/// <summary>
/// Method is invoked when the datacontext is changed.
/// This requires changing event hook-up on attached viewmodel to enable
/// notification event conversion from viewmodel into view.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void MsgBoxView_DataContextChanged(object sender, System.Windows.DependencyPropertyChangedEventArgs e)
{
if (this.mAttachedNotificationEvent == true)
{
this.mViewModel.ShowNotificationMessage -= ViewModel_ShowNotificationMessage;
}
this.mViewModel = e.NewValue as INotifyableViewModel;
if (this.mViewModel != null)
{
this.mViewModel.ShowNotificationMessage += ViewModel_ShowNotificationMessage;
this.mAttachedNotificationEvent = true;
}
else
{
this.mAttachedNotificationEvent = false;
}
}
