HttpMultipartFormDataContent Class

Definition

Namespace:

Windows.Web.Http

Provides HTTP content that uses the multipart/form-data MIME type.

C#

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
[Windows.Foundation.Metadata.Activatable(typeof(Windows.Web.Http.IHttpMultipartFormDataContentFactory), 65536, "Windows.Foundation.UniversalApiContract")]
public sealed class HttpMultipartFormDataContent : IEnumerable<IHttpContent>, System.IDisposable, IStringable, IHttpContent

Inheritance

Object HttpMultipartFormDataContent

Attributes

ActivatableAttribute ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Implements

IEnumerable<IHttpContent> IDisposable IStringable IHttpContent

Windows requirements

Device family	Windows 10 (introduced in 10.0.10240.0)
API contract	Windows.Foundation.UniversalApiContract (introduced in v1.0)

Remarks

Enumerating the collection in C# or Microsoft Visual Basic

You can iterate through an HttpMultipartFormDataContent object in C# or Microsoft Visual Basic. In many cases, such as using foreach syntax, the compiler does this casting for you and you won't need to cast to IEnumerable<IHttpContent> explicitly. If you do need to cast explicitly, for example if you want to call GetEnumerator, cast to [IEnumerable<T>](/dotnet/api/system.collections.generic.ienumerable-1?view=dotnet-uwp-10.0&preserve-view=true with an IHttpContent constraint.

Constructors

HttpMultipartFormDataContent()	Initializes a new instance of the HttpMultipartFormDataContent class.
HttpMultipartFormDataContent(String)	Initializes a new instance of the HttpMultipartFormDataContent class with the specified boundary string.

Properties

Headers

Get a collection of content headers set on the HttpMultipartFormDataContent.

Methods

Add(IHttpContent, String, String)	Add HTTP content with a specified name from a file to the HttpMultipartFormDataContent instance.
Add(IHttpContent, String)	Add HTTP content with a specified name to the HttpMultipartFormDataContent instance.
Add(IHttpContent)	Add HTTP content to the HttpMultipartFormDataContent instance.
BufferAllAsync()	Serialize the HttpMultipartFormDataContent into memory as an asynchronous operation.
Close()	Closes the HttpMultipartFormDataContent instance and releases allocated resources.
Dispose()	Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
First()	Gets an object that can be used to enumerate the contents in the HttpMultipartFormDataContent object.
ReadAsBufferAsync()	Serialize the HttpMultipartFormDataContent to a buffer as an asynchronous operation.
ReadAsInputStreamAsync()	Serialize the HttpMultipartFormDataContent and return an input stream that represents the content as an asynchronous operation.
ReadAsStringAsync()	Serialize the HttpMultipartFormDataContent to a String as an asynchronous operation.
ToString()	Returns a string that represents the current HttpMultipartFormDataContent object.
TryComputeLength(UInt64)	Determines whether the HttpMultipartFormDataContent has a valid length in bytes.
WriteToStreamAsync(IOutputStream)	Write the HttpMultipartFormDataContent to an output stream as an asynchronous operation.

Applies to

See also

• IClosable
• IHttpContent
• IIterable<T>
• IStringable