使用 C# .NET Core 2.1 查询 DynamoDB GSI 时出错

Question

I am getting the following error for the code below:

Error CS1061 'AsyncSearch' does not contain a definition for 'GetAwaiter' and no accessible extension method 'GetAwaiter' accepting a first argument of type 'AsyncSearch' could be found (are you missing a using directive or an assembly reference?

DynamoDBContext context = new DynamoDBContext(client);

                DynamoDBOperationConfig indexHashRangeOpConfig = new DynamoDBOperationConfig()
                {
                    IndexName = "ProjectFGDIndex",
                    ConsistentRead = false,
                };

                IEnumerable<Dashboardreq> list = await
                context.QueryAsync<Dashboardreq>(req.ProjectName, QueryOperator.Between, new string[] {
                                                 req.FileGeneratedFromDate+" " + Constants.DayBeginTime,
                                                 req.FileGeneratedToDate+" " + Constants.DayEndTime
                                                 });

The error occurs in the await context.QueryAsync call. Looking for guidance...

Answer 1

I resolved the issue ny making the following changes to the code:

List<Dashboardreq> list =
                await context.QueryAsync<Dashboardreq>(req.ProjectName, QueryOperator.Between, new string[] {
                                                 req.FileGeneratedFromDate+" " + Constants.DayBeginTime,
                                                 req.FileGeneratedToDate+" " + Constants.DayEndTime
                                                 }, indexHashRangeOpConfig).GetRemainingAsync();