/// <summary>
/// Uninitializes a model by unsubscribing from all events.
/// </summary>
/// <param name="modelProperty">The name of the model property.</param>
/// <param name="model">The model.</param>
/// <param name="modelCleanUpMode">The model clean up mode.</param>
private void UninitializeModelInternal(string modelProperty, object model, ModelCleanUpMode modelCleanUpMode)
{
if (model != null)
{
ViewModelManager.UnregisterModel(this, model);
}
if (_modelErrorInfo.ContainsKey(modelProperty))
{
var modelErrorInfo = _modelErrorInfo[modelProperty];
modelErrorInfo.Updated -= OnModelErrorInfoUpdated;
modelErrorInfo.CleanUp();
_modelErrorInfo.Remove(modelProperty);
}
if (SupportIEditableObject)
{
var modelInfo = _modelObjectsInfo[modelProperty];
if (modelInfo.SupportIEditableObject)
{
switch (modelCleanUpMode)
{
case ModelCleanUpMode.CancelEdit:
try
{
modelInfo.IsCanceling = true;
EditableObjectHelper.CancelEditObject(model);
}
catch (Exception ex)
{
Log.Warning(ex, "Failed to cancel the edit of object for model '{0}'", modelProperty);
}
finally
{
modelInfo.IsCanceling = false;
}
break;
case ModelCleanUpMode.EndEdit:
try
{
EditableObjectHelper.EndEditObject(model);
}
catch (Exception ex)
{
Log.Warning(ex, "Failed to end the edit of object for model '{0}'", modelProperty);
}
break;
}
}
}
var modelAsINotifyPropertyChanged = model as INotifyPropertyChanged;
if (modelAsINotifyPropertyChanged != null)
{
modelAsINotifyPropertyChanged.PropertyChanged -= OnModelPropertyChangedInternal;
}
UninitializeModel(modelProperty, model, modelCleanUpMode);
}
/// <summary>
/// Called when a model uninitialized.
/// </summary>
/// <param name="modelProperty">The name of the model property.</param>
/// <param name="model">The model.</param>
/// <param name="modelCleanUpMode">The model clean up mode.</param>
protected virtual void UninitializeModel(string modelProperty, object model, ModelCleanUpMode modelCleanUpMode)
{
}
/// <summary>
/// Resets the model by calling uninitializing and initializing the model again. This means that if the model
/// supports
/// <see cref="IEditableObject"/>, it will be reset.
/// </summary>
/// <param name="modelProperty">The model property.</param>
/// <param name="modelCleanUpMode">The model clean up mode.</param>
/// <exception cref="ArgumentNullException">The <paramref name="modelProperty"/> is <c>null</c>.</exception>
protected void ResetModel(string modelProperty, ModelCleanUpMode modelCleanUpMode)
{
Argument.IsNotNull("modelProperty", modelProperty);
var model = GetValue(modelProperty);
UninitializeModelInternal(modelProperty, model, modelCleanUpMode);
InitializeModelInternal(modelProperty, model);
}
