Azure Blob Storage Check File is Existed

azure-storage-blob-file-is-existed.cs

            var connsctionString = "your_connection_string";
            var cloudStorage = Microsoft.WindowsAzure.Storage.CloudStorageAccount.Parse(connsctionString);

            var cloudBlobClient = cloudStorage.CreateCloudBlobClient();
            var cloudBlobContainer = cloudBlobClient.GetContainerReference("donmablogsample");
            var resultCreateContainer = cloudBlobContainer.CreateIfNotExistsAsync().Result;

            Console.WriteLine("donmablogsample create already.");


            Microsoft.WindowsAzure.Storage.Blob.CloudBlobDirectory cloudBlobDirectory =
                cloudBlobContainer.GetDirectoryReference("TEST2/TEST21/");

            //Existed : true
            Console.WriteLine("TEST2/TEST21/sampleText1.json is Existed =>" + cloudBlobDirectory.GetBlockBlobReference("sampleText1.json").ExistsAsync().Result);

            //Existed : false
            Console.WriteLine("TEST2/TEST21/FileNotExisted.json is Existed =>" + cloudBlobDirectory.GetBlockBlobReference("FileNotExisted.json").ExistsAsync().Result);