ValidationMessageObserver.OnValidationMessagesChanging 方法
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
重写以处理对消息集合的更改。
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> -> unitProtected Overridable Sub OnValidationMessagesChanging (messagesBeforeUpdate As ReadOnlyCollection(Of ValidationMessage), messagesRemoved As ReadOnlyCollection(Of ValidationMessage), messagesAdded As ReadOnlyCollection(Of ValidationMessage), messagesAfterUpdate As ReadOnlyCollection(Of ValidationMessage))参数
- messagesBeforeUpdate
- ReadOnlyCollection<ValidationMessage>
- messagesRemoved
- ReadOnlyCollection<ValidationMessage>
- messagesAdded
- ReadOnlyCollection<ValidationMessage>
- messagesAfterUpdate
- ReadOnlyCollection<ValidationMessage>
注解
按以下顺序调用方法：1。 OnValidationMessagesChanging 2。 OnValidationMessageRemoved-为删除的每个消息调用一次。 3. OnValidationMessageAdded-为添加的每个消息调用一次。 4. OnValidationMessagesChangedSummary