C#Azure文件存储CloudFile.OpenWrite与OpenXml.SpreadsheetDocument的问题…需要文件模式和文件访问选项吗？

我正在使用DocumentFormat.OpenXml.SpreadsheetDocument，打开Excel文档的模板，写入并保存它

它的工作原理类似于普通文件流中的魅力：

using (var documentStream = System.IO.File.Open("--somePath--", FileMode.Open, FileAccess.ReadWrite))
{
    using (var document = SpreadsheetDocument.Open(documentStream, true))
    {
        // do something
    }
}

请注意电子表格文档。打开

现在，我正在将此应用程序重写到Azure，并在“WindowsAzure.storage”包中使用Azure存储及其.NET文件库

它就像一个符咒，我想在Azure中填充相同的excel文件

using (var documentStream = _GetRootDirectoryOfAccount().GetFileReference("--someRelativePath--").OpenWrite(null))
{
    using (var document = SpreadsheetDocument.Open(documentStream, true))
    {
        // do something
    }
}

第一部分“\u getRootDirectoryOfcount（）.GetFileReference”可以100%工作，然后OpenWrite（null）确实打开了一个流

但是，当该流被推向电子表格时：

SpreadsheetDocument.Open(documentStream, true)

它与：

System.IO.IOException:'无法打开包，因为文件模式或 FileAccess值对流无效。“

这是因为在流上未设置设置：

System.IO.File.Open（“--somePath--”，FileMode.Open，FileAccess.ReadWrite）

有人知道怎么避开这件事吗？还是一个解决方案

请：）

有人知道怎么避开这件事吗？还是一个解决方案

“\ucode>GetRootDirectoryOfcount（）.GetFileReference（“--someRelativePath-->”）.OpenWrite（null））的返回类型是

CloudFileStream

`

似乎不支持

CloudFileStream

请尝试使用下面的代码，它在我这边正常工作。更新内容后，我们可以使用file.UploadFromFile（）或file.UploadFromStream（）上传文件

var file = _GetRootDirectoryOfAccount().GetFileReference("--someRelativePath--");
var memoryStream = new MemoryStream();
file.DownloadToStream(memoryStream);
using (var document = SpreadsheetDocument.Open(memoryStream, true))
{
  // do something
}

下面是我的演示代码

var connectionString = "DefaultEndpointsProtocol=https;AccountName=accountName;AccountKey=xxxxx;EndpointSuffix=core.windows.net";
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(connectionString);
CloudFileClient fileClient = storageAccount.CreateCloudFileClient();

// Get a reference to the file share we created previously.
CloudFileShare share = fileClient.GetShareReference("test"); //share name

if (share.Exists())
{
   // Get a reference to the root directory for the share.
   CloudFileDirectory rootDir = share.GetRootDirectoryReference();

   // Get a reference to the directory we created previously.
   CloudFileDirectory sampleDir = rootDir.GetDirectoryReference("custom"); 
   // Ensure that the directory exists.
   if (sampleDir.Exists())
   {
       // Get a reference to the file we created previously.
       var file = sampleDir.GetFileReference("OpenXMl.xlsx"); //file name

       // Ensure that the file exists.
        if (file.Exists())
        {
            // Write the contents of the file to the console window.
            Console.WriteLine(file.DownloadTextAsync().Result);
            var memoryStream = new MemoryStream();
            file.DownloadToStream(memoryStream);
            using (var document = SpreadsheetDocument.Open(memoryStream, true))
            {
               // do something
            }
        }
     }

}

有人知道怎么避开这件事吗？还是一个解决方案

“\ucode>GetRootDirectoryOfcount（）.GetFileReference（“--someRelativePath-->”）.OpenWrite（null））的返回类型是

CloudFileStream

`

似乎不支持

CloudFileStream

请尝试使用下面的代码，它在我这边正常工作。更新内容后，我们可以使用file.UploadFromFile（）或file.UploadFromStream（）上传文件

var file = _GetRootDirectoryOfAccount().GetFileReference("--someRelativePath--");
var memoryStream = new MemoryStream();
file.DownloadToStream(memoryStream);
using (var document = SpreadsheetDocument.Open(memoryStream, true))
{
  // do something
}

下面是我的演示代码

var connectionString = "DefaultEndpointsProtocol=https;AccountName=accountName;AccountKey=xxxxx;EndpointSuffix=core.windows.net";
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(connectionString);
CloudFileClient fileClient = storageAccount.CreateCloudFileClient();

// Get a reference to the file share we created previously.
CloudFileShare share = fileClient.GetShareReference("test"); //share name

if (share.Exists())
{
   // Get a reference to the root directory for the share.
   CloudFileDirectory rootDir = share.GetRootDirectoryReference();

   // Get a reference to the directory we created previously.
   CloudFileDirectory sampleDir = rootDir.GetDirectoryReference("custom"); 
   // Ensure that the directory exists.
   if (sampleDir.Exists())
   {
       // Get a reference to the file we created previously.
       var file = sampleDir.GetFileReference("OpenXMl.xlsx"); //file name

       // Ensure that the file exists.
        if (file.Exists())
        {
            // Write the contents of the file to the console window.
            Console.WriteLine(file.DownloadTextAsync().Result);
            var memoryStream = new MemoryStream();
            file.DownloadToStream(memoryStream);
            using (var document = SpreadsheetDocument.Open(memoryStream, true))
            {
               // do something
            }
        }
     }

}