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HttpFileCollectionBase Class

Serves as the base class for classes that provide access to files that were uploaded by a client.

Namespace:  System.Web
Assembly:  System.Web (in System.Web.dll)

public abstract class HttpFileCollectionBase : NameObjectCollectionBase, 
	ICollection, IEnumerable

The HttpFileCollectionBase type exposes the following members.

  NameDescription
Protected methodHttpFileCollectionBaseInitializes the class for use by an inherited class instance. This constructor can only be called by an inherited class.
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  NameDescription
Public propertyAllKeysWhen overridden in a derived class, gets an array that contains the keys (names) of all posted file objects in the collection.
Public propertyCountWhen overridden in a derived class, gets the number of posted file objects in the collection. (Overrides NameObjectCollectionBase.Count.)
Protected propertyIsReadOnlyGets or sets a value indicating whether the NameObjectCollectionBase instance is read-only. (Inherited from NameObjectCollectionBase.)
Public propertyIsSynchronizedWhen overridden in a derived class, gets a value that indicates whether access to the collection is thread-safe.
Public propertyItem[Int32]When overridden in a derived class, gets the posted file object at the specified index.
Public propertyItem[String]When overridden in a derived class, gets the posted file object that has the specified name from the collection.
Public propertyKeysGets a NameObjectCollectionBase.KeysCollection instance that contains all the keys in the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Public propertySyncRootWhen overridden in a derived class, gets an object that can be used to synchronize access to the collection.
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  NameDescription
Protected methodBaseAddAdds an entry with the specified key and value into the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseClearRemoves all entries from the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseGet(Int32)Gets the value of the entry at the specified index of the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseGet(String)Gets the value of the first entry with the specified key from the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseGetAllKeysReturns a String array that contains all the keys in the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseGetAllValues()Returns an Object array that contains all the values in the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseGetAllValues(Type)Returns an array of the specified type that contains all the values in the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseGetKeyGets the key of the entry at the specified index of the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseHasKeysGets a value indicating whether the NameObjectCollectionBase instance contains entries whose keys are not null. (Inherited from NameObjectCollectionBase.)
Protected methodBaseRemoveRemoves the entries with the specified key from the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseRemoveAtRemoves the entry at the specified index of the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseSet(Int32, Object)Sets the value of the entry at the specified index of the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Protected methodBaseSet(String, Object)Sets the value of the first entry with the specified key in the NameObjectCollectionBase instance, if found; otherwise, adds an entry with the specified key and value into the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Public methodCopyToWhen overridden in a derived class, copies the elements of the collection to an array, starting at the specified index in the array.
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGet(Int32)When overridden in a derived class, returns the posted file object at the specified index.
Public methodGet(String)When overridden in a derived class, returns the posted file object that has the specified name from the collection.
Public methodGetEnumeratorWhen overridden in a derived class, returns an enumerator that can be used to iterate through the collection. (Overrides NameObjectCollectionBase.GetEnumerator().)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetKeyWhen overridden in a derived class, returns the name of the posted file object at the specified index.
Public methodGetObjectDataImplements the ISerializable interface and returns the data needed to serialize the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodOnDeserializationImplements the ISerializable interface and raises the deserialization event when the deserialization is complete. (Inherited from NameObjectCollectionBase.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Public Extension MethodAsParallelEnables parallelization of a query. (Defined by ParallelEnumerable.)
Public Extension MethodAsQueryableConverts an IEnumerable to an IQueryable. (Defined by Queryable.)
Public Extension MethodCast<TResult>Casts the elements of an IEnumerable to the specified type. (Defined by Enumerable.)
Public Extension MethodOfType<TResult>Filters the elements of an IEnumerable based on a specified type. (Defined by Enumerable.)
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  NameDescription
Explicit interface implemetationPrivate methodICollection.CopyToCopies the entire NameObjectCollectionBase to a compatible one-dimensional Array, starting at the specified index of the target array. (Inherited from NameObjectCollectionBase.)
Explicit interface implemetationPrivate propertyICollection.IsSynchronizedGets a value indicating whether access to the NameObjectCollectionBase object is synchronized (thread safe). (Inherited from NameObjectCollectionBase.)
Explicit interface implemetationPrivate propertyICollection.SyncRootGets an object that can be used to synchronize access to the NameObjectCollectionBase object. (Inherited from NameObjectCollectionBase.)
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The HttpFileCollectionBase class is an abstract class that contains the same members as the HttpFileCollection class. The HttpFileCollectionBase class lets you create derived classes that are like the HttpFileCollection class, but that you can customize and that work outside the ASP.NET pipeline. When you perform unit testing, you typically use a derived class to implement members with customized behavior that fulfills the scenario that you are testing.

The HttpFileCollectionWrapper class derives from the HttpFileCollectionBase class. The HttpFileCollectionWrapper class serves as a wrapper for the HttpFileCollection class. At run time, you typically use an instance of the HttpFileCollectionWrapper class to call members of the HttpFileCollection object.

.NET Framework

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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