35 lines
1.1 KiB
C#
35 lines
1.1 KiB
C#
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//----------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//----------------------------------------------------------------
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namespace System.ServiceModel.Discovery
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{
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using System.Collections.ObjectModel;
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// The NonNullItemCollection overrides the InsertItem and SetItem
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// methods to check if any null items are inserted. All publicly
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// exposed collections and collections used for serialization
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// either use this or a collection which inherits this collection.
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class NonNullItemCollection<T> : Collection<T>
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{
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protected override void InsertItem(int index, T item)
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{
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if (item == null)
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{
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throw FxTrace.Exception.ArgumentNull("item");
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}
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base.InsertItem(index, item);
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}
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protected override void SetItem(int index, T item)
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{
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if (item == null)
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{
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throw FxTrace.Exception.ArgumentNull("item");
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}
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base.SetItem(index, item);
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}
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}
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}
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