56 lines
2.0 KiB
C#
56 lines
2.0 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="FileDataSourceCache.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.UI {
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using System.Collections.Specialized;
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using System.Web.Caching;
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internal sealed class FileDataSourceCache : DataSourceCache {
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private StringCollection _fileDependencies;
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/// <devdoc>
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/// Sets the list of files that the cache entry will be dependent on.
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/// These values are not stored in view state.
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/// </devdoc>
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public StringCollection FileDependencies {
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get {
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if (_fileDependencies == null) {
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_fileDependencies = new StringCollection();
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}
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return _fileDependencies;
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}
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}
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/// <devdoc>
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/// Saves data to the ASP.NET cache using the specified key.
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/// </devdoc>
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protected override void SaveDataToCacheInternal(string key, object data, CacheDependency dependency) {
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int fileCount = FileDependencies.Count;
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string[] filenames = new string[fileCount];
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FileDependencies.CopyTo(filenames, 0);
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CacheDependency fileDependency = new CacheDependency(0, filenames);
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if (dependency != null) {
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// There was another dependency passed in, aggregate them
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AggregateCacheDependency aggregateDependency = new AggregateCacheDependency();
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aggregateDependency.Add(fileDependency, dependency);
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dependency = aggregateDependency;
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}
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else {
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// No other dependencies, just the file one
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dependency = fileDependency;
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}
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base.SaveDataToCacheInternal(key, data, dependency);
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}
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}
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}
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