FileDataSourceCache.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / FileDataSourceCache.cs / 1 / FileDataSourceCache.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 
namespace System.Web.UI {
 
    using System.Collections.Specialized; 
    using System.Web.Caching;
 

    internal sealed class FileDataSourceCache : DataSourceCache {

        private StringCollection _fileDependencies; 

 
        ///  
        /// Sets the list of files that the cache entry will be dependent on.
        /// These values are not stored in view state. 
        /// 
        public StringCollection FileDependencies {
            get {
                if (_fileDependencies == null) { 
                    _fileDependencies = new StringCollection();
                } 
                return _fileDependencies; 
            }
        } 


        /// 
        /// Saves data to the ASP.NET cache using the specified key. 
        /// 
        protected override void SaveDataToCacheInternal(string key, object data, CacheDependency dependency) { 
            int fileCount = FileDependencies.Count; 
            string[] filenames = new string[fileCount];
            FileDependencies.CopyTo(filenames, 0); 
            CacheDependency fileDependency = new CacheDependency(0, filenames);

            if (dependency != null) {
                // There was another dependency passed in, aggregate them 
                AggregateCacheDependency aggregateDependency = new AggregateCacheDependency();
                aggregateDependency.Add(fileDependency, dependency); 
                dependency = aggregateDependency; 
            }
            else { 
                // No other dependencies, just the file one
                dependency = fileDependency;
            }
 
            base.SaveDataToCacheInternal(key, data, dependency);
        } 
    } 
}

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