azure - 对 Azure 表存储的异步调用

Question

以下是我用来从 .NET Core 类库中的 Azure 表存储 (ATS) 读取数据的方法。

问题是，虽然此方法正在对 ATS 进行异步调用，但我不能 await它。我如何修改这个方法，使其成为“标准”async方法？

public T Get<T>(string partitionKey, string rowKey, string tableName) where T : ITableEntity, new()
{
    var table = GetTable(tableName);

    TableQuery<T> query = new TableQuery<T>().Where(
        TableQuery.CombineFilters(
           TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, partitionKey),
           TableOperators.And,
           TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.Equal, rowKey))).Take(1);

    var result = new T();

    TableContinuationToken continuationToken = null;
    do
    {
       Task<TableQuerySegment<T>> querySegment = table.ExecuteQuerySegmentedAsync(query, continuationToken);
       TableQuerySegment<T> segment = querySegment.Result;
       result = segment.FirstOrDefault();
       continuationToken = segment.ContinuationToken;
     } while (continuationToken != null);

     return result;
}

如果我简单地添加async Task<T>和 await关键字，我在使用 await 时收到错误.

Answer 1

How do I modify this method so that I can make it a "standard" async method?

将所有对 Result 的调用替换为 await:

Task<TableQuerySegment<T>> querySegment = table.ExecuteQuerySegmentedAsync(query, continuationToken);
TableQuerySegment<T> segment = await querySegment;

编译器将从那里引导您。