MemoryCache Class

.NET Framework (current version)
 

Represents the type that implements an in-memory cache.

Namespace:   System.Runtime.Caching
Assembly:  System.Runtime.Caching (in System.Runtime.Caching.dll)

System.Object
  System.Runtime.Caching.ObjectCache
    System.Runtime.Caching.MemoryCache

public class MemoryCache : ObjectCache, IEnumerable, IDisposable

NameDescription
System_CAPS_pubmethodMemoryCache(String, NameValueCollection)

Initializes a new instance of the MemoryCache class.

NameDescription
System_CAPS_pubpropertyCacheMemoryLimit

Gets the amount of memory on the computer, in bytes, that can be used by the cache.

System_CAPS_pubpropertySystem_CAPS_staticDefault

Gets a reference to the default MemoryCache instance.

System_CAPS_pubpropertyDefaultCacheCapabilities

Gets a description of the features that the cache provides.(Overrides ObjectCache.DefaultCacheCapabilities.)

System_CAPS_pubpropertyItem[String]

Gets or sets a value in the cache by using the default indexer property for an instance of the MemoryCache class.(Overrides ObjectCache.Item[String].)

System_CAPS_pubpropertyName

Gets the name of the cache. (Overrides ObjectCache.Name.)

System_CAPS_pubpropertyPhysicalMemoryLimit

Gets the percentage of physical memory that the cache can use.

System_CAPS_pubpropertyPollingInterval

Gets the maximum time after which the cache updates its memory statistics.

NameDescription
System_CAPS_pubmethodAdd(CacheItem, CacheItemPolicy)

Inserts a cache entry into the cache as a CacheItem instance, and adds details about how the entry should be evicted.(Overrides ObjectCache.Add(CacheItem, CacheItemPolicy).)

System_CAPS_pubmethodAdd(String, Object, CacheItemPolicy, String)

When overridden in a derived class, inserts a cache entry into the cache, specifying information about how the entry will be evicted.(Inherited from ObjectCache.)

System_CAPS_pubmethodAdd(String, Object, DateTimeOffset, String)

When overridden in a derived class, inserts a cache entry into the cache without overwriting any existing cache entry. (Inherited from ObjectCache.)

System_CAPS_pubmethodAddOrGetExisting(CacheItem, CacheItemPolicy)

Adds a cache entry into the cache using the specified CacheItem instance and details about how to evict the entry.(Overrides ObjectCache.AddOrGetExisting(CacheItem, CacheItemPolicy).)

System_CAPS_pubmethodAddOrGetExisting(String, Object, CacheItemPolicy, String)

Inserts a cache entry into the cache using the specified key and value and the specified details for how it is to be evicted.(Overrides ObjectCache.AddOrGetExisting(String, Object, CacheItemPolicy, String).)

System_CAPS_pubmethodAddOrGetExisting(String, Object, DateTimeOffset, String)

Adds a cache entry into the cache using the specified key and a value and an absolute expiration value.(Overrides ObjectCache.AddOrGetExisting(String, Object, DateTimeOffset, String).)

System_CAPS_pubmethodContains(String, String)

Determines whether a cache entry exists in the cache.(Overrides ObjectCache.Contains(String, String).)

System_CAPS_pubmethodCreateCacheEntryChangeMonitor(IEnumerable<String>, String)

Creates a CacheEntryChangeMonitor object that can trigger events in response to changes to specified cache entries.(Overrides ObjectCache.CreateCacheEntryChangeMonitor(IEnumerable<String>, String).)

System_CAPS_pubmethodDispose()

Releases all resources that are used by the current instance of the MemoryCache class.

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGet(String, String)

Returns an entry from the cache. (Overrides ObjectCache.Get(String, String).)

System_CAPS_pubmethodGetCacheItem(String, String)

Returns the specified entry from the cache as a CacheItem instance.(Overrides ObjectCache.GetCacheItem(String, String).)

System_CAPS_pubmethodGetCount(String)

Returns the total number of cache entries in the cache. (Overrides ObjectCache.GetCount(String).)

System_CAPS_protmethodGetEnumerator()

Creates an enumerator that can be used to iterate through a collection of cache entries.(Overrides ObjectCache.GetEnumerator().)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodGetValues(IEnumerable<String>, String)

Returns a set of cache entries that correspond to the specified keys.(Overrides ObjectCache.GetValues(IEnumerable<String>, String).)

System_CAPS_pubmethodGetValues(String, String[])

Gets a set of cache entries that correspond to the specified keys.(Inherited from ObjectCache.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodRemove(String, String)

Removes a cache entry from the cache. (Overrides ObjectCache.Remove(String, String).)

System_CAPS_pubmethodSet(CacheItem, CacheItemPolicy)

Inserts a cache entry into the cache by using a CacheItem instance to supply the key and value for the cache entry.(Overrides ObjectCache.Set(CacheItem, CacheItemPolicy).)

System_CAPS_pubmethodSet(String, Object, CacheItemPolicy, String)

Inserts a cache entry into the cache by using a key and a value and eviction.(Overrides ObjectCache.Set(String, Object, CacheItemPolicy, String).)

System_CAPS_pubmethodSet(String, Object, DateTimeOffset, String)

Inserts a cache entry into the cache by using a key and a value and specifies time-based expiration details.(Overrides ObjectCache.Set(String, Object, DateTimeOffset, String).)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

System_CAPS_pubmethodTrim(Int32)

Removes a specified percentage of cache entries from the cache object.

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethodIEnumerable<KeyValuePair<String, Object>>.GetEnumerator()

Supports iteration over a strongly typed collection.(Inherited from ObjectCache.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIEnumerable.GetEnumerator()

Provides support for iteration over a generic collection.

NameDescription
System_CAPS_pubmethodAggregate<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, KeyValuePair<String, Object>, KeyValuePair<String, Object>>)

Overloaded. Applies an accumulator function over a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAggregate<KeyValuePair<String, Object>, TAccumulate>(TAccumulate, Func<TAccumulate, KeyValuePair<String, Object>, TAccumulate>)

Overloaded. Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.(Defined by Enumerable.)

System_CAPS_pubmethodAggregate<KeyValuePair<String, Object>, TAccumulate, TResult>(TAccumulate, Func<TAccumulate, KeyValuePair<String, Object>, TAccumulate>, Func<TAccumulate, TResult>)

Overloaded. Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.(Defined by Enumerable.)

System_CAPS_pubmethodAll<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Determines whether all elements of a sequence satisfy a condition.(Defined by Enumerable.)

System_CAPS_pubmethodAny<KeyValuePair<String, Object>>()

Overloaded. Determines whether a sequence contains any elements.(Defined by Enumerable.)

System_CAPS_pubmethodAny<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Determines whether any element of a sequence satisfies a condition.(Defined by Enumerable.)

System_CAPS_pubmethodAsEnumerable<KeyValuePair<String, Object>>()

Returns the input typed as IEnumerable<T>.(Defined by Enumerable.)

System_CAPS_pubmethodAsParallel()

Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.)

System_CAPS_pubmethodAsParallel<KeyValuePair<String, Object>>()

Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.)

System_CAPS_pubmethodAsQueryable()

Overloaded. Converts an IEnumerable to an IQueryable.(Defined by Queryable.)

System_CAPS_pubmethodAsQueryable<KeyValuePair<String, Object>>()

Overloaded. Converts a generic IEnumerable<T> to a generic IQueryable<T>.(Defined by Queryable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Decimal>)

Overloaded. Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Double>)

Overloaded. Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int32>)

Overloaded. Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int64>)

Overloaded. Computes the average of a sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Decimal>>)

Overloaded. Computes the average of a sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Double>>)

Overloaded. Computes the average of a sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Int32>>)

Overloaded. Computes the average of a sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Int64>>)

Overloaded. Computes the average of a sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Single>>)

Overloaded. Computes the average of a sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Single>)

Overloaded. Computes the average of a sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodCast<TResult>()

Casts the elements of an IEnumerable to the specified type.(Defined by Enumerable.)

System_CAPS_pubmethodConcat<KeyValuePair<String, Object>>(IEnumerable<KeyValuePair<String, Object>>)

Concatenates two sequences.(Defined by Enumerable.)

System_CAPS_pubmethodContains<KeyValuePair<String, Object>>(KeyValuePair<String, Object>)

Overloaded. Determines whether a sequence contains a specified element by using the default equality comparer.(Defined by Enumerable.)

System_CAPS_pubmethodContains<KeyValuePair<String, Object>>(KeyValuePair<String, Object>, IEqualityComparer<KeyValuePair<String, Object>>)

Overloaded. Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.(Defined by Enumerable.)

System_CAPS_pubmethodCount<KeyValuePair<String, Object>>()

Overloaded. Returns the number of elements in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodCount<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Returns a number that represents how many elements in the specified sequence satisfy a condition.(Defined by Enumerable.)

System_CAPS_pubmethodDefaultIfEmpty<KeyValuePair<String, Object>>()

Overloaded. Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.(Defined by Enumerable.)

System_CAPS_pubmethodDefaultIfEmpty<KeyValuePair<String, Object>>(KeyValuePair<String, Object>)

Overloaded. Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.(Defined by Enumerable.)

System_CAPS_pubmethodDistinct<KeyValuePair<String, Object>>()

Overloaded. Returns distinct elements from a sequence by using the default equality comparer to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodDistinct<KeyValuePair<String, Object>>(IEqualityComparer<KeyValuePair<String, Object>>)

Overloaded. Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodElementAt<KeyValuePair<String, Object>>(Int32)

Returns the element at a specified index in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodElementAtOrDefault<KeyValuePair<String, Object>>(Int32)

Returns the element at a specified index in a sequence or a default value if the index is out of range.(Defined by Enumerable.)

System_CAPS_pubmethodExcept<KeyValuePair<String, Object>>(IEnumerable<KeyValuePair<String, Object>>)

Overloaded. Produces the set difference of two sequences by using the default equality comparer to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodExcept<KeyValuePair<String, Object>>(IEnumerable<KeyValuePair<String, Object>>, IEqualityComparer<KeyValuePair<String, Object>>)

Overloaded. Produces the set difference of two sequences by using the specified IEqualityComparer<T> to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodFirst<KeyValuePair<String, Object>>()

Overloaded. Returns the first element of a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodFirst<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Returns the first element in a sequence that satisfies a specified condition.(Defined by Enumerable.)

System_CAPS_pubmethodFirstOrDefault<KeyValuePair<String, Object>>()

Overloaded. Returns the first element of a sequence, or a default value if the sequence contains no elements.(Defined by Enumerable.)

System_CAPS_pubmethodFirstOrDefault<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Returns the first element of the sequence that satisfies a condition or a default value if no such element is found.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>, IEqualityComparer<TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<String, Object>, TKey, TElement>(Func<KeyValuePair<String, Object>, TKey>, Func<KeyValuePair<String, Object>, TElement>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<String, Object>, TKey, TElement>(Func<KeyValuePair<String, Object>, TKey>, Func<KeyValuePair<String, Object>, TElement>, IEqualityComparer<TKey>)

Overloaded. Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<String, Object>, TKey, TResult>(Func<KeyValuePair<String, Object>, TKey>, Func<TKey, IEnumerable<KeyValuePair<String, Object>>, TResult>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<String, Object>, TKey, TResult>(Func<KeyValuePair<String, Object>, TKey>, Func<TKey, IEnumerable<KeyValuePair<String, Object>>, TResult>, IEqualityComparer<TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<String, Object>, TKey, TElement, TResult>(Func<KeyValuePair<String, Object>, TKey>, Func<KeyValuePair<String, Object>, TElement>, Func<TKey, IEnumerable<TElement>, TResult>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<String, Object>, TKey, TElement, TResult>(Func<KeyValuePair<String, Object>, TKey>, Func<KeyValuePair<String, Object>, TElement>, Func<TKey, IEnumerable<TElement>, TResult>, IEqualityComparer<TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupJoin<KeyValuePair<String, Object>, TInner, TKey, TResult>(IEnumerable<TInner>, Func<KeyValuePair<String, Object>, TKey>, Func<TInner, TKey>, Func<KeyValuePair<String, Object>, IEnumerable<TInner>, TResult>)

Overloaded. Correlates the elements of two sequences based on equality of keys and groups the results. The default equality comparer is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethodGroupJoin<KeyValuePair<String, Object>, TInner, TKey, TResult>(IEnumerable<TInner>, Func<KeyValuePair<String, Object>, TKey>, Func<TInner, TKey>, Func<KeyValuePair<String, Object>, IEnumerable<TInner>, TResult>, IEqualityComparer<TKey>)

Overloaded. Correlates the elements of two sequences based on key equality and groups the results. A specified IEqualityComparer<T> is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethodIntersect<KeyValuePair<String, Object>>(IEnumerable<KeyValuePair<String, Object>>)

Overloaded. Produces the set intersection of two sequences by using the default equality comparer to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodIntersect<KeyValuePair<String, Object>>(IEnumerable<KeyValuePair<String, Object>>, IEqualityComparer<KeyValuePair<String, Object>>)

Overloaded. Produces the set intersection of two sequences by using the specified IEqualityComparer<T> to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodJoin<KeyValuePair<String, Object>, TInner, TKey, TResult>(IEnumerable<TInner>, Func<KeyValuePair<String, Object>, TKey>, Func<TInner, TKey>, Func<KeyValuePair<String, Object>, TInner, TResult>)

Overloaded. Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethodJoin<KeyValuePair<String, Object>, TInner, TKey, TResult>(IEnumerable<TInner>, Func<KeyValuePair<String, Object>, TKey>, Func<TInner, TKey>, Func<KeyValuePair<String, Object>, TInner, TResult>, IEqualityComparer<TKey>)

Overloaded. Correlates the elements of two sequences based on matching keys. A specified IEqualityComparer<T> is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethodLast<KeyValuePair<String, Object>>()

Overloaded. Returns the last element of a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodLast<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Returns the last element of a sequence that satisfies a specified condition.(Defined by Enumerable.)

System_CAPS_pubmethodLastOrDefault<KeyValuePair<String, Object>>()

Overloaded. Returns the last element of a sequence, or a default value if the sequence contains no elements.(Defined by Enumerable.)

System_CAPS_pubmethodLastOrDefault<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.(Defined by Enumerable.)

System_CAPS_pubmethodLongCount<KeyValuePair<String, Object>>()

Overloaded. Returns an Int64 that represents the total number of elements in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodLongCount<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Returns an Int64 that represents how many elements in a sequence satisfy a condition.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>()

Overloaded. Returns the maximum value in a generic sequence.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Decimal>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Double>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Double value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int32>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int64>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Decimal>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Double>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Double value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Int32>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Int64>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Single>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Single>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Single value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<String, Object>, TResult>(Func<KeyValuePair<String, Object>, TResult>)

Overloaded. Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>()

Overloaded. Returns the minimum value in a generic sequence.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Decimal>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Double>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Double value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int32>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int64>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Decimal>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Double>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Double value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Int32>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Int64>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Single>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Single>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Single value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<String, Object>, TResult>(Func<KeyValuePair<String, Object>, TResult>)

Overloaded. Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.(Defined by Enumerable.)

System_CAPS_pubmethodOfType<TResult>()

Filters the elements of an IEnumerable based on a specified type.(Defined by Enumerable.)

System_CAPS_pubmethodOrderBy<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>)

Overloaded. Sorts the elements of a sequence in ascending order according to a key.(Defined by Enumerable.)

System_CAPS_pubmethodOrderBy<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>, IComparer<TKey>)

Overloaded. Sorts the elements of a sequence in ascending order by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethodOrderByDescending<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>)

Overloaded. Sorts the elements of a sequence in descending order according to a key.(Defined by Enumerable.)

System_CAPS_pubmethodOrderByDescending<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>, IComparer<TKey>)

Overloaded. Sorts the elements of a sequence in descending order by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethodReverse<KeyValuePair<String, Object>>()

Inverts the order of the elements in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSelect<KeyValuePair<String, Object>, TResult>(Func<KeyValuePair<String, Object>, TResult>)

Overloaded. Projects each element of a sequence into a new form.(Defined by Enumerable.)

System_CAPS_pubmethodSelect<KeyValuePair<String, Object>, TResult>(Func<KeyValuePair<String, Object>, Int32, TResult>)

Overloaded. Projects each element of a sequence into a new form by incorporating the element's index.(Defined by Enumerable.)

System_CAPS_pubmethodSelectMany<KeyValuePair<String, Object>, TResult>(Func<KeyValuePair<String, Object>, IEnumerable<TResult>>)

Overloaded. Projects each element of a sequence to an IEnumerable<T> and flattens the resulting sequences into one sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSelectMany<KeyValuePair<String, Object>, TResult>(Func<KeyValuePair<String, Object>, Int32, IEnumerable<TResult>>)

Overloaded. Projects each element of a sequence to an IEnumerable<T>, and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.(Defined by Enumerable.)

System_CAPS_pubmethodSelectMany<KeyValuePair<String, Object>, TCollection, TResult>(Func<KeyValuePair<String, Object>, IEnumerable<TCollection>>, Func<KeyValuePair<String, Object>, TCollection, TResult>)

Overloaded. Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.(Defined by Enumerable.)

System_CAPS_pubmethodSelectMany<KeyValuePair<String, Object>, TCollection, TResult>(Func<KeyValuePair<String, Object>, Int32, IEnumerable<TCollection>>, Func<KeyValuePair<String, Object>, TCollection, TResult>)

Overloaded. Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element.(Defined by Enumerable.)

System_CAPS_pubmethodSequenceEqual<KeyValuePair<String, Object>>(IEnumerable<KeyValuePair<String, Object>>)

Overloaded. Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.(Defined by Enumerable.)

System_CAPS_pubmethodSequenceEqual<KeyValuePair<String, Object>>(IEnumerable<KeyValuePair<String, Object>>, IEqualityComparer<KeyValuePair<String, Object>>)

Overloaded. Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<T>.(Defined by Enumerable.)

System_CAPS_pubmethodSingle<KeyValuePair<String, Object>>()

Overloaded. Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSingle<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.(Defined by Enumerable.)

System_CAPS_pubmethodSingleOrDefault<KeyValuePair<String, Object>>()

Overloaded. Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSingleOrDefault<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.(Defined by Enumerable.)

System_CAPS_pubmethodSkip<KeyValuePair<String, Object>>(Int32)

Bypasses a specified number of elements in a sequence and then returns the remaining elements.(Defined by Enumerable.)

System_CAPS_pubmethodSkipWhile<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.(Defined by Enumerable.)

System_CAPS_pubmethodSkipWhile<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int32, Boolean>)

Overloaded. Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Decimal>)

Overloaded. Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Double>)

Overloaded. Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int32>)

Overloaded. Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int64>)

Overloaded. Computes the sum of the sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Decimal>>)

Overloaded. Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Double>>)

Overloaded. Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Int32>>)

Overloaded. Computes the sum of the sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Int64>>)

Overloaded. Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Nullable<Single>>)

Overloaded. Computes the sum of the sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Single>)

Overloaded. Computes the sum of the sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodTake<KeyValuePair<String, Object>>(Int32)

Returns a specified number of contiguous elements from the start of a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodTakeWhile<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Returns elements from a sequence as long as a specified condition is true.(Defined by Enumerable.)

System_CAPS_pubmethodTakeWhile<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int32, Boolean>)

Overloaded. Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.(Defined by Enumerable.)

System_CAPS_pubmethodToArray<KeyValuePair<String, Object>>()

Creates an array from a IEnumerable<T>.(Defined by Enumerable.)

System_CAPS_pubmethodToDictionary<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>)

Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to a specified key selector function.(Defined by Enumerable.)

System_CAPS_pubmethodToDictionary<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>, IEqualityComparer<TKey>)

Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to a specified key selector function and key comparer.(Defined by Enumerable.)

System_CAPS_pubmethodToDictionary<KeyValuePair<String, Object>, TKey, TElement>(Func<KeyValuePair<String, Object>, TKey>, Func<KeyValuePair<String, Object>, TElement>)

Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to specified key selector and element selector functions.(Defined by Enumerable.)

System_CAPS_pubmethodToDictionary<KeyValuePair<String, Object>, TKey, TElement>(Func<KeyValuePair<String, Object>, TKey>, Func<KeyValuePair<String, Object>, TElement>, IEqualityComparer<TKey>)

Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to a specified key selector function, a comparer, and an element selector function.(Defined by Enumerable.)

System_CAPS_pubmethodToList<KeyValuePair<String, Object>>()

Creates a List<T> from an IEnumerable<T>.(Defined by Enumerable.)

System_CAPS_pubmethodToLookup<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>)

Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to a specified key selector function.(Defined by Enumerable.)

System_CAPS_pubmethodToLookup<KeyValuePair<String, Object>, TKey>(Func<KeyValuePair<String, Object>, TKey>, IEqualityComparer<TKey>)

Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to a specified key selector function and key comparer.(Defined by Enumerable.)

System_CAPS_pubmethodToLookup<KeyValuePair<String, Object>, TKey, TElement>(Func<KeyValuePair<String, Object>, TKey>, Func<KeyValuePair<String, Object>, TElement>)

Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to specified key selector and element selector functions.(Defined by Enumerable.)

System_CAPS_pubmethodToLookup<KeyValuePair<String, Object>, TKey, TElement>(Func<KeyValuePair<String, Object>, TKey>, Func<KeyValuePair<String, Object>, TElement>, IEqualityComparer<TKey>)

Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to a specified key selector function, a comparer and an element selector function.(Defined by Enumerable.)

System_CAPS_pubmethodUnion<KeyValuePair<String, Object>>(IEnumerable<KeyValuePair<String, Object>>)

Overloaded. Produces the set union of two sequences by using the default equality comparer.(Defined by Enumerable.)

System_CAPS_pubmethodUnion<KeyValuePair<String, Object>>(IEnumerable<KeyValuePair<String, Object>>, IEqualityComparer<KeyValuePair<String, Object>>)

Overloaded. Produces the set union of two sequences by using a specified IEqualityComparer<T>.(Defined by Enumerable.)

System_CAPS_pubmethodWhere<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Boolean>)

Overloaded. Filters a sequence of values based on a predicate.(Defined by Enumerable.)

System_CAPS_pubmethodWhere<KeyValuePair<String, Object>>(Func<KeyValuePair<String, Object>, Int32, Boolean>)

Overloaded. Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.(Defined by Enumerable.)

System_CAPS_pubmethodZip<KeyValuePair<String, Object>, TSecond, TResult>(IEnumerable<TSecond>, Func<KeyValuePair<String, Object>, TSecond, TResult>)

Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.(Defined by Enumerable.)

The MemoryCache class is a concrete implementation of the abstract ObjectCache class.

System_CAPS_noteNote

The MemoryCache class is similar to the ASP.NET Cache class. The MemoryCache class has many properties and methods for accessing the cache that will be familiar to you if you have used the ASP.NET Cache class. The main differences between the Cache and MemoryCache classes are that the MemoryCache class has been changed to make it usable by .NET Framework applications that are not ASP.NET applications. For example, the MemoryCache class has no dependencies on the System.Web assembly. Another difference is that you can create multiple instances of the MemoryCache class for use in the same application and in the same AppDomain instance.

The MemoryCache class does not allow null as a value in the cache. Any attempt to add or change a cache entry with a value of null will fail.

The MemoryCache type does not implement cache regions. Therefore, when you call MemoryCache methods that implement base methods that contain a parameter for regions, do not pass a value for the parameter. The methods that use the region parameter all supply a default null value. For example, the MemoryCache.AddOrGetExisting method overload has a regionName parameter whose default value is null.

The following example declares a reference to the default memory cache instance. The cache entry uses a CacheItemPolicy object to provide eviction and expiration details for the cache entry. It also uses a ChangeMonitor object to monitor the state of the source data (which is a file) on the file system.

private void btnGet_Click(object sender, EventArgs e)
{
    ObjectCache cache = MemoryCache.Default;
    string fileContents = cache["filecontents"] as string;

    if (fileContents == null)
    {
        CacheItemPolicy policy = new CacheItemPolicy();

        List<string> filePaths = new List<string>();
        filePaths.Add("c:\\cache\\example.txt");

        policy.ChangeMonitors.Add(new 
        HostFileChangeMonitor(filePaths));

        // Fetch the file contents.
        fileContents = 
            File.ReadAllText("c:\\cache\\example.txt");

        cache.Set("filecontents", fileContents, policy);
    }

    Label1.Text = fileContents;
}

.NET Framework
Available since 4.0

This type is thread safe.

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