CloudAppendBlob.UploadFromFileAsync Method (String, FileMode)

Article
11/01/2015
2 minutes to read

Initiates an asynchronous operation to upload a file to an append blob. If the blob already exists, it will be overwritten. Recommended only for single-writer scenarios.

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

Syntax

[DoesServiceRequestAttribute]
public Task UploadFromFileAsync(
    string path,
    FileMode mode
)

<DoesServiceRequestAttribute>
Public Function UploadFromFileAsync (
    path As String,
    mode As FileMode
) As Task

Parameters

path
Type: System.String

A string containing the file path providing the blob content.

mode
Type: System.IO.FileMode

A FileMode enumeration value that specifies how to open the file.

Return Value

Type: System.Threading.Tasks.Task

A Task object that represents the asynchronous operation.

Implements

ICloudBlob.UploadFromFileAsync(String, FileMode)

Remarks

Use this method only in single-writer scenarios. Internally, this method uses the append-offset conditional header to avoid duplicate blocks, which may cause problems in multiple-writer scenarios. To append data to an append blob that already exists, see AppendFromFileAsync.