Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.Activities / System / Activities / ActivityBuilder.cs / 1407647 / ActivityBuilder.cs
//---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities { using System.Activities.Debugger; using System.Activities.Validation; using System.Collections.ObjectModel; using System.ComponentModel; using System.Windows.Markup; using System.Xaml; [ContentProperty("Implementation")] public sealed class ActivityBuilder : IDebuggableWorkflowTree { // defines an attached property that will identify PropertyReferenceExtension-based // object properties static AttachableMemberIdentifier propertyReferencePropertyID = new AttachableMemberIdentifier(typeof(ActivityBuilder), "PropertyReference"); KeyedCollectionproperties; Collection constraints; Collection attributes; public ActivityBuilder() { } public string Name { get; set; } [DependsOn("Name")] public Collection Attributes { get { if (this.attributes == null) { this.attributes = new Collection (); } return this.attributes; } } [Browsable(false)] [DependsOn("Attributes")] public KeyedCollection Properties { get { if (this.properties == null) { this.properties = new ActivityPropertyCollection(); } return this.properties; } } [DependsOn("Properties")] [Browsable(false)] public Collection Constraints { get { if (this.constraints == null) { this.constraints = new Collection (); } return this.constraints; } } [DefaultValue(null)] [Browsable(false)] [DependsOn("Constraints")] public Activity Implementation { get; set; } // activity property name public static ActivityPropertyReference GetPropertyReference(object target) { ActivityPropertyReference value; return AttachablePropertyServices.TryGetProperty(target, propertyReferencePropertyID, out value) ? value : null; } //activity property name public static void SetPropertyReference(object target, ActivityPropertyReference value) { AttachablePropertyServices.SetProperty(target, propertyReferencePropertyID, value); } Activity IDebuggableWorkflowTree.GetWorkflowRoot() { return this.Implementation; } internal static KeyedCollectionCreateActivityPropertyCollection() { return new ActivityPropertyCollection(); } class ActivityPropertyCollection : KeyedCollection { protected override string GetKeyForItem(DynamicActivityProperty item) { return item.Name; } } } [ContentProperty("Implementation")] public sealed class ActivityBuilder : IDebuggableWorkflowTree { KeyedCollection properties; Collection constraints; Collection attributes; public ActivityBuilder() { } public string Name { get; set; } [DependsOn("Name")] public Collection Attributes { get { if (this.attributes == null) { this.attributes = new Collection (); } return this.attributes; } } [Browsable(false)] [DependsOn("Attributes")] public KeyedCollection Properties { get { if (this.properties == null) { this.properties = ActivityBuilder.CreateActivityPropertyCollection(); } return this.properties; } } [DependsOn("Properties")] [Browsable(false)] public Collection Constraints { get { if (this.constraints == null) { this.constraints = new Collection (); } return this.constraints; } } [DefaultValue(null)] [Browsable(false)] [DependsOn("Constraints")] public Activity Implementation { get; set; } Activity IDebuggableWorkflowTree.GetWorkflowRoot() { return this.Implementation; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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