WorkflowChangeAction.ValidateChanges(Activity) 方法

定义

命名空间:

System.Workflow.ComponentModel

程序集:

System.Workflow.ComponentModel.dll

当在派生类中重写时，验证更改并返回包含任意错误的 ValidationErrorCollection。

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 Activity。

返回

ValidationErrorCollection

包含任意错误的 ValidationErrorCollection。

例外

ArgumentNullException

activityInstance 为空引用（在 Visual Basic 中为 Nothing）。