1.在azure中创建存储帐户和容器，并在azure中上载blob。
Etag value在blob的属性中可用。
下面是创建的示例blob。

斑点的ETag值

使用下面的代码我们可以获取Etag值。

string storageAccount_connectionString = "storageAccount_connectionString";

            CloudStorageAccount storage_Account = CloudStorageAccount.Parse(storageAccount_connectionString);
            CloudBlobClient blob_Client = storage_Account.CreateCloudBlobClient();
            CloudBlobContainer container = blob_Client.GetContainerReference("mycontainer");
            container.CreateIfNotExists();

            var blobList = container.ListBlobs();
            foreach (var blob in blobList)
            {
                CloudBlockBlob block_Blob = container.GetBlockBlobReference(((Microsoft.WindowsAzure.Storage.Blob.CloudBlob)blob).Name);
                Console.WriteLine("Blob Name: "+ block_Blob.Name);
                string etag = block_Blob.Properties.ETag;
                Console.WriteLine("ETag: " + etag);
                Console.WriteLine("------------");
            }

将这些值分配给数据列表并将其绑定到网格。