CompositeActivityDesigner.OnContainedActivitiesChanging Method

Reference

Definition

Namespace:: System.Workflow.ComponentModel.Design

Assembly:: System.Workflow.ComponentModel.dll

Important

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Occurs when an activity or a group of activities contained within the designer are changing. This occurs, for example, when a new child activity is added or an existing child activity is removed.

protected:
 virtual void OnContainedActivitiesChanging(System::Workflow::ComponentModel::ActivityCollectionChangeEventArgs ^ listChangeArgs);

protected virtual void OnContainedActivitiesChanging (System.Workflow.ComponentModel.ActivityCollectionChangeEventArgs listChangeArgs);

abstract member OnContainedActivitiesChanging : System.Workflow.ComponentModel.ActivityCollectionChangeEventArgs -> unit
override this.OnContainedActivitiesChanging : System.Workflow.ComponentModel.ActivityCollectionChangeEventArgs -> unit

Protected Overridable Sub OnContainedActivitiesChanging (listChangeArgs As ActivityCollectionChangeEventArgs)

Parameters

listChangeArgs: ActivityCollectionChangeEventArgs

An ActivityCollectionChangeEventArgs that contains information about the change.

Exceptions

ArgumentNullException

listChangeArgs contains a null reference (Nothing in Visual Basic).

Remarks

Use OnContainedActivitiesChanging to respond to changes that are occurring to the activities contained within the composite activity.

Applies to

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