119 lines
2.7 KiB
C#
119 lines
2.7 KiB
C#
//-----------------------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace System.Activities
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{
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using System;
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using System.Collections.Generic;
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using System.Runtime;
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class IdSpace
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{
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int lastId;
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IList<Activity> members;
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public IdSpace()
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{
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}
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public IdSpace(IdSpace parent, int parentId)
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{
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this.Parent = parent;
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this.ParentId = parentId;
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}
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public IdSpace Parent
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{
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get;
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private set;
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}
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public int ParentId
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{
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get;
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private set;
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}
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public int MemberCount
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{
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get
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{
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if (this.members == null)
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{
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return 0;
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}
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else
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{
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return this.members.Count;
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}
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}
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}
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public Activity Owner
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{
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get
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{
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if (this.Parent != null)
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{
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return this.Parent[this.ParentId];
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}
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return null;
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}
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}
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public Activity this[int id]
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{
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get
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{
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int lookupId = id - 1;
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if (this.members == null || lookupId < 0 || lookupId >= this.members.Count)
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{
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return null;
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}
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else
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{
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return this.members[lookupId];
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}
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}
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}
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public void AddMember(Activity element)
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{
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if (this.members == null)
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{
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this.members = new List<Activity>();
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}
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if (lastId == int.MaxValue)
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{
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throw FxTrace.Exception.AsError(new NotSupportedException(SR.OutOfIdSpaceIds));
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}
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lastId++;
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// ID info is cleared inside InternalId.
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element.InternalId = lastId;
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Fx.Assert(element.MemberOf == this, "We should have already set this.");
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Fx.Assert(this.members.Count == element.InternalId - 1, "We should always be adding the next element");
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this.members.Add(element);
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}
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public void Dispose()
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{
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if (this.members != null)
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{
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this.members.Clear();
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}
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this.lastId = 0;
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this.Parent = null;
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this.ParentId = 0;
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}
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}
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}
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