Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Behaviors / CancellationHandler.cs / 1305376 / CancellationHandler.cs
namespace System.Workflow.ComponentModel { using System; using System.Drawing; using System.ComponentModel; using System.Collections; using System.ComponentModel.Design; using System.Workflow.ComponentModel.Design; using System.Workflow.ComponentModel.Compiler; [ToolboxItem(false)] [Designer(typeof(CancellationHandlerActivityDesigner), typeof(IDesigner))] [ToolboxBitmap(typeof(CancellationHandlerActivity), "Resources.CancellationHandler.bmp")] [ActivityValidator(typeof(CancellationHandlerValidator))] [AlternateFlowActivity] public sealed class CancellationHandlerActivity : CompositeActivity, IActivityEventListener{ public CancellationHandlerActivity() { } public CancellationHandlerActivity(string name) :base(name) { } protected internal override void Initialize(IServiceProvider provider) { if (this.Parent == null) throw new InvalidOperationException(SR.GetString(SR.Error_MustHaveParent)); base.Initialize(provider); } protected internal override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext) { return SequenceHelper.Execute(this, executionContext); } protected internal override ActivityExecutionStatus Cancel(ActivityExecutionContext executionContext) { return SequenceHelper.Cancel(this, executionContext); } void IActivityEventListener .OnEvent(Object sender, ActivityExecutionStatusChangedEventArgs e) { SequenceHelper.OnEvent(this, sender, e); } protected internal override void OnActivityChangeRemove(ActivityExecutionContext executionContext, Activity removedActivity) { SequenceHelper.OnActivityChangeRemove(this, executionContext, removedActivity); } protected internal override void OnWorkflowChangesCompleted(ActivityExecutionContext executionContext) { SequenceHelper.OnWorkflowChangesCompleted(this, executionContext); } } internal sealed class CancellationHandlerValidator : CompositeActivityValidator { public override ValidationErrorCollection Validate(ValidationManager manager, object obj) { ValidationErrorCollection validationErrors = base.Validate(manager, obj); CancellationHandlerActivity cancellationHandlerActivity = obj as CancellationHandlerActivity; if (cancellationHandlerActivity == null) throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(CancellationHandlerActivity).FullName), "obj"); if (cancellationHandlerActivity.EnabledActivities.Count == 0) validationErrors.Add(new ValidationError(SR.GetString(SR.Warning_EmptyBehaviourActivity, typeof(CancellationHandlerActivity).FullName, cancellationHandlerActivity.QualifiedName), ErrorNumbers.Warning_EmptyBehaviourActivity, true)); // cancellation handlers can not contain fault handlers, compensation handler and cancellation handler if (((ISupportAlternateFlow)cancellationHandlerActivity).AlternateFlowActivities.Count > 0) validationErrors.Add(new ValidationError(SR.GetString(SR.Error_ModelingConstructsCanNotContainModelingConstructs), ErrorNumbers.Error_ModelingConstructsCanNotContainModelingConstructs)); return validationErrors; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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