Will not upload to Azure blob storage

Question

This is how I try to upload to Azure. Now I try to upload then there will be no error at all.

Thus when I try to upload it does not get into my blob storage at all.

var storageCredentials = new StorageCredentials("dinekompetencer", "?????");
                var storageAccount = new CloudStorageAccount(storageCredentials, true);

                var blobClient = storageAccount.CreateCloudBlobClient();
                var container = blobClient.GetContainerReference("img");

                var blockBlob = container.GetBlockBlobReference(imgNewName);
                blockBlob.Properties.CacheControl = "max-age=3600";

                blockBlob.UploadFromStreamAsync(fileName);

And the realy code:

public void UploadImageToBlob(string imgNewName, Stream fileName)
        {
            try
            {

                var storageCredentials = new StorageCredentials(AzureHelper.Accountname, AzureHelper.KeyValue);
                var storageAccount = new CloudStorageAccount(storageCredentials, true);

                var blobClient = storageAccount.CreateCloudBlobClient();
                var container = blobClient.GetContainerReference(AzureHelper.ContainerName);

                var blockBlob = container.GetBlockBlobReference(imgNewName);
                blockBlob.Properties.CacheControl = "max-age=3600";

                blockBlob.UploadFromStreamAsync(fileName);
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }

        }

It is a fixed Blob container that has been created in advance.

UPDATE:

Error are :

Microsoft.WindowsAzure.Storage.StorageException: Cannot access a closed Stream.
---> System.ObjectDisposedException: Cannot access a closed Stream.
at System.IO.MemoryStream.EnsureNotClosed()
at System.IO.MemoryStream.get_Position()
at Microsoft.AspNetCore.WebUtilities.FileBufferingReadStream.get_Position()
at Microsoft.AspNetCore.Http.ReferenceReadStream.VerifyPosition()
at Microsoft.AspNetCore.Http.ReferenceReadStream.set_Position(Int64 value)
at Microsoft.AspNetCore.Http.ReferenceReadStream.Seek(Int64 offset, SeekOrigin origin)
at Microsoft.WindowsAzure.Storage.Shared.Protocol.CappedLengthReadOnlyStream.Seek(Int64 offset, SeekOrigin origin)
at Microsoft.WindowsAzure.Storage.Shared.Protocol.HttpContentFactory.BuildContentFromStream[T](Stream stream, Int64 offset, Nullable1 length, String md5, RESTCommand1 cmd, OperationContext operationContext)
at Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob.<>c__DisplayClass83_0.<PutBlobImpl>b__0(RESTCom

Code to upload file:

var img = model.FileToUpload.FileName;
                    var imgNewName = _fileService.GetNewFileNameImg(img);
                    var fileName = model.FileToUpload.OpenReadStream();

                    _azureService.UploadImageToBlob(imgNewName, fileName);

Answer 1

@Jesper Petersen
We have both v11 and v12 samples available for uploading a blob which might be helpful for you. I was able to find two Stack Overflow threads relating to UploadFromStreamAsync, which might be helpful for resolving your issue. The first mentions need to use await. The second mentions the need to set the position =0. Please check and see if these might resolve your issue.

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