35 lines
702 B
C#
35 lines
702 B
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace Microsoft.Research.DynamicDataDisplay.Common.UndoSystem
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{
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public sealed class CollectionAddAction<T> : UndoAction
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{
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private readonly ICollection<T> collection;
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private readonly T item;
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public CollectionAddAction(ICollection<T> collection, T item)
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{
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if (collection == null)
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throw new ArgumentNullException("collection");
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if (item == null)
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throw new ArgumentNullException("addedItem");
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this.collection = collection;
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this.item = item;
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}
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public override void Do()
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{
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collection.Add(item);
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}
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public override void Undo()
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{
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collection.Remove(item);
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}
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}
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}
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