WorkflowChangeAction.ValidateChanges(Activity) 方法

定义

当在派生类中重写时,验证更改并返回包含任意错误的 ValidationErrorCollectionWhen overridden in a derived class, validates the changes and returns a ValidationErrorCollection that contains any errors.

protected public:
 abstract System::Workflow::ComponentModel::Compiler::ValidationErrorCollection ^ ValidateChanges(System::Workflow::ComponentModel::Activity ^ activity);
protected internal abstract System.Workflow.ComponentModel.Compiler.ValidationErrorCollection ValidateChanges (System.Workflow.ComponentModel.Activity activity);
abstract member ValidateChanges : System.Workflow.ComponentModel.Activity -> System.Workflow.ComponentModel.Compiler.ValidationErrorCollection
Protected Friend MustOverride Function ValidateChanges (activity As Activity) As ValidationErrorCollection

参数

activity
Activity

针对其验证更改的 ActivityThe Activity upon which to validate the changes.

返回

ValidationErrorCollection

包含任意错误的 ValidationErrorCollectionA ValidationErrorCollection that contains any errors.

例外

activityInstance 为空引用(在 Visual Basic 中为 Nothing)。activityInstance is a null reference (Nothing in Visual Basic).

适用于