Storage Client Library for Windows Phone (Version 7.0)

Returns a task that performs an asynchronous operation to open a stream for writing to the file.

Namespace:   Microsoft.WindowsAzure.Storage.File
Assembly:  Microsoft.WindowsAzure.Storage (in Microsoft.WindowsAzure.Storage.dll)

Syntax

C#

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[DoesServiceRequestAttribute]
public virtual Task<CloudFileStream> OpenWriteAsync(
	Nullable<long> size,
	AccessCondition accessCondition,
	FileRequestOptions options,
	OperationContext operationContext,
	CancellationToken cancellationToken
)

C++

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public:
[DoesServiceRequestAttribute]
virtual Task<CloudFileStream^>^ OpenWriteAsync(
	Nullable<long long> size,
	AccessCondition^ accessCondition,
	FileRequestOptions^ options,
	OperationContext^ operationContext,
	CancellationToken cancellationToken
)

F#

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[<DoesServiceRequestAttribute>]
abstract OpenWriteAsync : 
        size:Nullable<int64> *
        accessCondition:AccessCondition *
        options:FileRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task<CloudFileStream>
[<DoesServiceRequestAttribute>]
override OpenWriteAsync : 
        size:Nullable<int64> *
        accessCondition:AccessCondition *
        options:FileRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task<CloudFileStream>

VB

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<DoesServiceRequestAttribute>
Public Overridable Function OpenWriteAsync (
	size As Nullable(Of Long),
	accessCondition As AccessCondition,
	options As FileRequestOptions,
	operationContext As OperationContext,
	cancellationToken As CancellationToken
) As Task(Of CloudFileStream)

Parameters

size

Type: System.Nullable<Int64>System::Nullable<Int64>System.Nullable<Int64>System.Nullable(Of Int64)

The size of the file, in bytes. If null, the file must already exist.

accessCondition

Type: Microsoft.WindowsAzure.Storage.AccessConditionMicrosoft.WindowsAzure.Storage::AccessCondition^Microsoft.WindowsAzure.Storage.AccessConditionMicrosoft.WindowsAzure.Storage.AccessCondition

An AccessCondition object that represents the access conditions for the file. If null, no condition is used.

options

Type: Microsoft.WindowsAzure.Storage.File.FileRequestOptionsMicrosoft.WindowsAzure.Storage.File::FileRequestOptions^Microsoft.WindowsAzure.Storage.File.FileRequestOptionsMicrosoft.WindowsAzure.Storage.File.FileRequestOptions

A FileRequestOptions object that specifies additional options for the request.

operationContext

Type: Microsoft.WindowsAzure.Storage.OperationContextMicrosoft.WindowsAzure.Storage::OperationContext^Microsoft.WindowsAzure.Storage.OperationContextMicrosoft.WindowsAzure.Storage.OperationContext

An OperationContext object that represents the context for the current operation.

cancellationToken

Type: System.Threading.CancellationTokenSystem.Threading::CancellationTokenSystem.Threading.CancellationTokenSystem.Threading.CancellationToken

A CancellationToken to observe while waiting for a task to complete.

Return Value

Type: System.Threading.Tasks.Task<CloudFileStream>System.Threading.Tasks::Task<CloudFileStream^>^System.Threading.Tasks.Task<CloudFileStream>System.Threading.Tasks.Task(Of CloudFileStream)

A Task<TResult><TResult><'TResult>(Of TResult) object that represents the current operation.

See Also

OpenWriteAsync Overload
CloudFile Class
Microsoft.WindowsAzure.Storage.File Namespace

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