问C# MemoryStream -此流不支持超时。

EN

我试图动态地创建一个csv文件，并将流输出到浏览器。

以下是我的api端点：

    [System.Web.Http.HttpGet]
    [System.Web.Http.Route("export-to-csv")]
    public FileStreamResult ExportDeposits([FromUri(Name = "")]DepositSearchParamsVM depositSearchParamsVM)
        {
            if (depositSearchParamsVM == null)
            {
                depositSearchParamsVM = new DepositSearchParamsVM();
            }
            var records = _DepositsService.SearchDeposits(depositSearchParamsVM);
            var result = _DepositsService.WriteCsvToMemory(records);
            var memoryStream = new MemoryStream(result);

            return new FileStreamResult(memoryStream, "text/csv") { FileDownloadName = "export.csv" };
    }

以下是我的服务方法：

public byte[] WriteCsvToMemory(IEnumerable<DepositSummaryVM> records)
        {
            using (var stream = new MemoryStream())
            using (var reader = new StreamReader(stream))
            using (var writer = new StreamWriter(stream))
            using (var csv = new CsvWriter(writer))
            {
                csv.WriteRecords(records);
                writer.Flush();
                stream.Position = 0;
                var text = reader.ReadToEnd();

                return stream.ToArray();

}

    }

以下是错误消息：

{“消息”：“发生错误。”、"exceptionMessage"：“在System.IO.MemoryStream‘上从'ReadTimeout’获取值时出错。” exceptionType："Newtonsoft.Json.JsonSerializationException"， “Newtonsoft.Json.Serialization.DynamicValueProvider.GetValue(Object”：“at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues(JsonWriter目标)\r\n在Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues(JsonWriter编写器、对象值、JsonContainerContract契约、JsonProperty成员、JsonProperty属性、JsonContract& memberContract、Object& memberValue)r\n at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter编写器、对象值、JsonObjectContract契约、JsonProperty成员、JsonContainerContract collectionContract、JsonProperty containerProperty)\r\n在Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter编写器、对象值、JsonContract JsonContract，Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter编写器的JsonProperty成员，JsonContainerContract containerContract，JsonProperty containerProperty)\r\n at JsonContainerContract编写器，Object value，JsonObjectContract契约，JsonProperty成员，JsonContainerContract collectionContract，JsonProperty containerProperty)\r\n at JsonContainerContract collectionContract，JsonProperty containerProperty)\r\n at JsonContract valueContract，JsonProperty member，JsonContract)\r在，对象值，\r\n在Newtonsoft.Json.JsonSerializer.SerializeInternal(JsonWriter类型中\r\n在System.Net.Http.Formatting.JsonMediaTypeFormatter.WriteToStream(Type类型中\\r\n在System.Net.Http.Formatting.JsonMediaTypeFormatter.WriteToStream(Type类型中\\r\n在System.Net.Http.Formatting.JsonMediaTypeFormatter.WriteToStream(Type类型下\\r\n在System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.WriteToStream(Type类型、对象值、对象值、流writeStream，\r\n在System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.WriteToStreamAsync(Type类型、对象值、流writeStream、HttpContent内容、transportContext TransportContext、\r)\r\n--从抛出异常的前一个位置开始的堆栈跟踪- System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task任务中的-\r\n)\r\n在System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task任务上)\r\n在System.Web.Http.Owin.HttpMessageHandlerAdapter.d__13.MoveNext()"，"innerException"：{“消息”：“发生了错误”，"exceptionMessage"：“超时在此流中不受支持。”、"exceptionType"："System.InvalidOperationException“、"stackTrace"：”at System.IO.Stream.get_ReadTimeout()\r\n at GetReadTimeout(Object )\r\n at GetReadTimeout目标“}}