SSRS 日期时间参数默认值格式

SSRS DateTime Parameters DefaultValue Format

我有一个 asp.net 应用程序,允许用户为 SSRS 报告创建订阅。

我所有的报告都有@StartDate 和@EndDate 参数,它们的默认值为

=Today.AddDays(-14) 

=Today 

分别。

我的 C# 代码在加载订阅表单时检查参数的默认值,以预填充 AspxDateEdit 控件。这在我的开发环境 (NZ) 上一切正常。

        ItemParameter[] Parameters = _Rs.GetItemParameters(_ThisReportPath, null, true, null, null);
        if (Parameters.Any())
        {
            foreach (ItemParameter Rp in Parameters)
            {
                if (Rp.ParameterTypeName == "DateTime" && Rp.PromptUser)
                {
                    var MyDtControl = new ASPxDateEdit
                    {
                        ID = "dtParam" + MyTable.Rows.Count
                    };
                    DateTime MyFormattedDisplayDate = Convert.ToDateTime(Rp.DefaultValues[0], CultureInfo.CurrentCulture.DateTimeFormat);
                    MyDtControl.Date = MyFormattedDisplayDate.Date;
                }
            }
        }

最初的网站将驻留在澳大利亚的服务器上,随后将推广到世界各国,因此我需要保持 DateTimes 的格式动态(特定于文化)。

在实时系统上加载报告的订阅表单时,我收到错误消息“字符串未被识别为有效的日期时间。”转储 Parameter.DefaultValues[0] 的值表明 AU 服务器上的默认值是美国格式 (MM/dd/yyyy),这导致了错误。记录代码:

SQLReportsLogic.Log(MyLog, "(Line 599 - LoadParams)Default Param Value:" + Rp.DefaultValues[0] + "/ ServerDateFormatToday:" + DateTime.Now);

结果输出:

(Line 599 - LoadParams)Default Param Value:3/24/2015 12:00:00 AM/ ServerDateFormatToday:24/03/2015 7:14:47 AM

格式应与服务器的文化信息保持一致,即 dd/MM/yyyy.

-   The report language is set to User!Language
-   The Server System Locale is English(Australia)
-   The Server Location is Australia
-   The Server Datetime format is set to ShortDate=d/MM/yyyy LongDate=dddd, d MMMM yyyy
-   The Server Language is set to English (Australia)
-   The Reporting Services Service is running under Local System Account
-   WWW is running under Local System Account
-   SSRS is running in Native Mode

SSRS 在确定 =Today() 的格式时具体从哪里获取日期时间格式?据我了解我迄今为止的研究,这应该以 dd/MM/yyyy 的系统分配格式生成 =Today() 我还尝试将参数的默认值格式化为

-   “yyyy/MM/dd hh:mm:ss” = The DefaultValue expression for the report parameter ‘StartDate’ contains an error: Input string was not in a correct format
-   “yyyy/MM/dd hh:mm” = The DefaultValue expression for the report parameter ‘StartDate’ contains an error: Input string was not in a correct format
-   “yyyy/MM/dd” = The DefaultValue expression for the report parameter ‘StartDate’ contains an error: Input string was not in a correct format
-   DateFormat.ShortDate = The property ‘DefaultValue’ of report parameter ‘StartDate’ doesn’t have the expected type.
-   DateFormat.LongDate = The property ‘DefaultValue’ of report parameter ‘StartDate’ doesn’t have the expected type.
-   DateFormat.GeneralDate = The property ‘DefaultValue’ of report parameter ‘StartDate’ doesn’t have the expected type.

看来,除非我能解决 SSRS 呈现 =Today() 的方式,否则我的双手被束缚。据我了解,我需要使用不正确的文化来查找 SSRS 安装的问题?它是否在某个地方的注册表中查找它?

我正在使用 VS2012(11.0.61030.00 更新 4)和 SSDTBI 插件(MSSQL Server Reporting Services 设计器版本 11.0.3436.0)

终于找到了正确的搜索词并在两天后找到了解决方案——按照此处所述覆盖 SSRS GetWebRequest。 https://social.msdn.microsoft.com/Forums/sqlserver/en-US/f147c641-d5c2-49e8-97f6-b654bec8366d/datetime-format-for-webservice-api-calls?forum=sqlreportingservices#0c223835-dd5c-4471-b736-1d9dad014144

public partial class ReportingService : DevReportService.ReportingService2010
{

    /// <summary>

    /// Gets or sets the culture that is used when generating the report.

    /// </summary>

    /// <value>The culture that is used when generating the report.</value>

    public CultureInfo Culture { get; set; }

    protected override WebRequest GetWebRequest(Uri uri)
    {

        WebRequest request = base.GetWebRequest(uri);

        CultureInfo culture = this.Culture ?? CultureInfo.CurrentCulture;

        request.Headers.Add(HttpRequestHeader.AcceptLanguage, culture.Name);

        return request;

    }

}