PageBlobClient.CreateIfNotExistsAsync Method

Reference

Definition

Namespace:: Azure.Storage.Blobs.Specialized

Assembly:: Azure.Storage.Blobs.dll

Package:: Azure.Storage.Blobs v12.19.1

Package:: Azure.Storage.Blobs v12.20.0-beta.2

Source:: PageBlobClient.cs

Source:: PageBlobClient.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

The CreateIfNotExistsAsync(Int64, PageBlobCreateOptions, CancellationToken) operation creates a new page blob of the specified size. If the blob already exists, the content of the existing blob will remain unchanged. If the blob does not already exists, a new page blob with the specified size will be created. Azure.Storage.Blobs.Specialized.PageBlobClient.UploadPages(System.IO.Stream,System.Int64,System.Byte[],Azure.Storage.Blobs.Models.PageBlobRequestConditions,System.IProgress{System.Int64},System.Threading.CancellationToken) operation.

For more information, see https://docs.microsoft.com/rest/api/storageservices/put-blob.

public virtual System.Threading.Tasks.Task<Azure.Response<Azure.Storage.Blobs.Models.BlobContentInfo>> CreateIfNotExistsAsync (long size, Azure.Storage.Blobs.Models.PageBlobCreateOptions options, System.Threading.CancellationToken cancellationToken = default);

abstract member CreateIfNotExistsAsync : int64 * Azure.Storage.Blobs.Models.PageBlobCreateOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Azure.Response<Azure.Storage.Blobs.Models.BlobContentInfo>>
override this.CreateIfNotExistsAsync : int64 * Azure.Storage.Blobs.Models.PageBlobCreateOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Azure.Response<Azure.Storage.Blobs.Models.BlobContentInfo>>

Public Overridable Function CreateIfNotExistsAsync (size As Long, options As PageBlobCreateOptions, Optional cancellationToken As CancellationToken = Nothing) As Task(Of Response(Of BlobContentInfo))

Parameters

size: Int64

Specifies the maximum size for the page blob, up to 8 TB. The size must be aligned to a 512-byte boundary.

options: PageBlobCreateOptions

Optional parameters.

cancellationToken: CancellationToken

Optional CancellationToken to propagate notifications that the operation should be cancelled.

Returns

Task<Response<BlobContentInfo>>

If the page blob does not already exist, A Response<T> describing the newly created page blob. Otherwise, null.

Remarks

A RequestFailedException will be thrown if a failure occurs.

Applies to