HttpFileCollection Class
Provides access to and organizes files uploaded by a client.
System.Collections.Specialized::NameObjectCollectionBase
System.Web::HttpFileCollection
Assembly: System.Web (in System.Web.dll)
The HttpFileCollection type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | AllKeys | Gets a string array containing the keys (names) of all members in the file collection. |
![]() | Count | Gets the number of key/value pairs contained in the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | IsReadOnly | Gets or sets a value indicating whether the NameObjectCollectionBase instance is read-only. (Inherited from NameObjectCollectionBase.) |
![]() | Item[Int32] | Gets the object with the specified numerical index from the HttpFileCollection. |
![]() | Item[String] | Gets the object with the specified name from the file collection. |
![]() | Keys | Gets a NameObjectCollectionBase::KeysCollection instance that contains all the keys in the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
| Name | Description | |
|---|---|---|
![]() | BaseAdd | Adds an entry with the specified key and value into the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseClear | Removes all entries from the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseGet(Int32) | Gets the value of the entry at the specified index of the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseGet(String) | Gets the value of the first entry with the specified key from the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseGetAllKeys | Returns a String array that contains all the keys in the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseGetAllValues() | Returns an Object array that contains all the values in the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseGetAllValues(Type) | Returns an array of the specified type that contains all the values in the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseGetKey | Gets the key of the entry at the specified index of the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseHasKeys | Gets a value indicating whether the NameObjectCollectionBase instance contains entries whose keys are not nullptr. (Inherited from NameObjectCollectionBase.) |
![]() | BaseRemove | Removes the entries with the specified key from the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseRemoveAt | Removes the entry at the specified index of the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseSet(Int32, Object) | Sets the value of the entry at the specified index of the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | BaseSet(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.) |
![]() | CopyTo | Copies members of the file collection to an Array beginning at the specified index of the array. |
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | Get(Int32) | Returns the HttpPostedFile object with the specified numerical index from the file collection. |
![]() | Get(String) | Returns the HttpPostedFile object with the specified name from the file collection. |
![]() | GetEnumerator | Returns an enumerator that iterates through the NameObjectCollectionBase. (Inherited from NameObjectCollectionBase.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetKey | Returns the name of the HttpFileCollection member with the specified numerical index. |
![]() | GetObjectData | Implements the ISerializable interface and returns the data needed to serialize the NameObjectCollectionBase instance. (Inherited from NameObjectCollectionBase.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | OnDeserialization | Implements the ISerializable interface and raises the deserialization event when the deserialization is complete. (Inherited from NameObjectCollectionBase.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | ICollection::CopyTo | Copies the entire NameObjectCollectionBase to a compatible one-dimensional Array, starting at the specified index of the target array. (Inherited from NameObjectCollectionBase.) |
![]() ![]() | ICollection::IsSynchronized | Gets a value indicating whether access to the NameObjectCollectionBase object is synchronized (thread safe). (Inherited from NameObjectCollectionBase.) |
![]() ![]() | ICollection::SyncRoot | Gets an object that can be used to synchronize access to the NameObjectCollectionBase object. (Inherited from NameObjectCollectionBase.) |
Clients encode files and transmit them in the content body using multipart MIME format with an HTTP Content-Type header of multipart/form-data. ASP.NET extracts the encoded file(s) from the content body into individual members of an HttpFileCollection. Methods and properties of the HttpPostedFile class provide access to the contents and properties of each file.
The following example demonstrates how to access the HttpFileCollection collection returned from the Files property of the HttpRequest object. The HttpFileCollection collection is populated by two FileUpload controls on the Web page. Items in the file collection are displayed in a BulletedList control.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, 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.






