ValidationMessageObserver.OnValidationMessagesChanging(ReadOnlyCollection<ValidationMessage>, ReadOnlyCollection<ValidationMessage>, ReadOnlyCollection<ValidationMessage>, ReadOnlyCollection<ValidationMessage>) Método

Definição

Substituir para processar uma alteração na coleção de mensagens.

protected:
 virtual void OnValidationMessagesChanging(System::Collections::ObjectModel::ReadOnlyCollection<Microsoft::VisualStudio::Modeling::Validation::ValidationMessage ^> ^ messagesBeforeUpdate, System::Collections::ObjectModel::ReadOnlyCollection<Microsoft::VisualStudio::Modeling::Validation::ValidationMessage ^> ^ messagesRemoved, System::Collections::ObjectModel::ReadOnlyCollection<Microsoft::VisualStudio::Modeling::Validation::ValidationMessage ^> ^ messagesAdded, System::Collections::ObjectModel::ReadOnlyCollection<Microsoft::VisualStudio::Modeling::Validation::ValidationMessage ^> ^ messagesAfterUpdate);
protected virtual void OnValidationMessagesChanging (System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> messagesBeforeUpdate, System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> messagesRemoved, System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> messagesAdded, System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> messagesAfterUpdate);
abstract member OnValidationMessagesChanging : System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> * System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> * System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> * System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> -> unit
override this.OnValidationMessagesChanging : System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> * System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> * System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> * System.Collections.ObjectModel.ReadOnlyCollection<Microsoft.VisualStudio.Modeling.Validation.ValidationMessage> -> unit
Protected Overridable Sub OnValidationMessagesChanging (messagesBeforeUpdate As ReadOnlyCollection(Of ValidationMessage), messagesRemoved As ReadOnlyCollection(Of ValidationMessage), messagesAdded As ReadOnlyCollection(Of ValidationMessage), messagesAfterUpdate As ReadOnlyCollection(Of ValidationMessage))

Parâmetros

messagesBeforeUpdate
ReadOnlyCollection<ValidationMessage>
messagesAfterUpdate
ReadOnlyCollection<ValidationMessage>

Comentários

os métodos são chamados nesta ordem: 1. OnValidationMessagesChanging 2. OnValidationMessageRemoved – chamado uma vez para cada mensagem removida. 3. OnValidationMessageAdded – chamado uma vez para cada mensagem adicionada. 4. OnValidationMessagesChangedSummary

Aplica-se a