Storage Client Library for Windows Phone (Version 7.0)

Begins 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#

Copy Code

 

[DoesServiceRequestAttribute]
public virtual ICancellableAsyncResult BeginOpenWrite(
	Nullable<long> size,
	AsyncCallback callback,
	object state
)

C++

Copy Code

 

public:
[DoesServiceRequestAttribute]
virtual ICancellableAsyncResult^ BeginOpenWrite(
	Nullable<long long> size,
	AsyncCallback^ callback,
	Object^ state
)

F#

Copy Code

 

[<DoesServiceRequestAttribute>]
abstract BeginOpenWrite : 
        size:Nullable<int64> *
        callback:AsyncCallback *
        state:Object -> ICancellableAsyncResult
[<DoesServiceRequestAttribute>]
override BeginOpenWrite : 
        size:Nullable<int64> *
        callback:AsyncCallback *
        state:Object -> ICancellableAsyncResult

VB

Copy Code

 

<DoesServiceRequestAttribute>
Public Overridable Function BeginOpenWrite (
	size As Nullable(Of Long),
	callback As AsyncCallback,
	state As Object
) As ICancellableAsyncResult

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.

callback

Type: System.AsyncCallbackSystem::AsyncCallback^System.AsyncCallbackSystem.AsyncCallback

The callback delegate that will receive notification when the asynchronous operation completes.

state

Type: System.ObjectSystem::Object^System.ObjectSystem.Object

A user-defined object that will be passed to the callback delegate.

Return Value

Type: Microsoft.WindowsAzure.Storage.ICancellableAsyncResultMicrosoft.WindowsAzure.Storage::ICancellableAsyncResult^Microsoft.WindowsAzure.Storage.ICancellableAsyncResultMicrosoft.WindowsAzure.Storage.ICancellableAsyncResult

An ICancellableAsyncResult that references the asynchronous operation.

See Also

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

Return to top