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CloudBlobContainer.BeginExists 方法

定义

命名空间:

Microsoft.Azure.Storage.Blob

程序集:

Microsoft.Azure.Storage.Blob.dll

包:

Microsoft.Azure.Storage.Blob v11.2.3

重载

BeginExists(AsyncCallback, Object)	开始异步请求，以检查容器是否存在。
BeginExists(BlobRequestOptions, OperationContext, AsyncCallback, Object)	开始异步请求，以检查容器是否存在。

BeginExists(AsyncCallback, Object)

开始异步请求，以检查容器是否存在。

[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual Microsoft.Azure.Storage.ICancellableAsyncResult BeginExists (AsyncCallback callback, object state);

[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member BeginExists : AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
override this.BeginExists : AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult

Public Overridable Function BeginExists (callback As AsyncCallback, state As Object) As ICancellableAsyncResult

参数

callback

AsyncCallback

在 AsyncCallback 异步操作完成时接收通知的委托。

state

Object

将传递给回调委托的用户定义对象。

返回

ICancellableAsyncResult

引用 ICancellableAsyncResult 异步操作的 。

属性

DoesServiceRequestAttribute

BeginExists(BlobRequestOptions, OperationContext, AsyncCallback, Object)

开始异步请求，以检查容器是否存在。

[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual Microsoft.Azure.Storage.ICancellableAsyncResult BeginExists (Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, AsyncCallback callback, object state);

[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member BeginExists : Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
override this.BeginExists : Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult

Public Overridable Function BeginExists (options As BlobRequestOptions, operationContext As OperationContext, callback As AsyncCallback, state As Object) As ICancellableAsyncResult

参数

options

BlobRequestOptions

一个 BlobRequestOptions 对象，它指定请求的其他选项。

operationContext

OperationContext

一个 OperationContext 对象，它一个表示当前操作的上下文。

callback

AsyncCallback

在 AsyncCallback 异步操作完成时接收通知的委托。

state

Object

将传递给回调委托的用户定义对象。

返回

ICancellableAsyncResult

引用 ICancellableAsyncResult 异步操作的 。

属性

DoesServiceRequestAttribute