在 CRM 2013 插件中获取错误时间的日期，但是 UI 没有时间字段。如何从日期中删除时间

Question

我目前正在通过以下方式从 CRM 检索日期字符串

Entity dateDeliveryRequiredImage = (Entity)context.PostEntityImages["DeliveryRequired"];

这确实有效，但由于某种原因，它似乎正在检索我通过以下行创建 CSV 文件的时间

dateDeliveryRequiredImage["requestdeliverby"].ToString()

知道从哪里获取时间，因为没有地方可以输入时间（它说是晚上 11 点？？）

更重要的是如何摆脱它

谢谢，肖恩

更新

输入所需代码后出现以下错误

 if (!timeZoneCode.HasValue)
            return;

需要一个可转换为“system.timeanddate”类型的对象

var response = (LocalTimeFromUtcTimeResponse)_serviceProxy.Execute(request);

_serviceProxy 在当前上下文中不存在

我的服务代码如下；

IPluginExecutionContext context = (IPluginExecutionContext)
            serviceProvider.GetService(typeof(IPluginExecutionContext));


        IOrganizationServiceFactory serviceFactory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
        IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);

但是输入服务或上下文什么也没做

终于 新的 QueryExpression(UserSettings.EntityLogicalName)

当前上下文中不存在用户设置

正在更新代码

private DateTime RetrieveLocalTimeFromUTCTime(DateTime utcTime, IOrganizationService service)
    {

        int? timeZoneCode = RetrieveCurrentUsersSettings(service);


        if (!timeZoneCode.HasValue)
            throw new Exception("Can't find time zone code");



        var request = new LocalTimeFromUtcTimeRequest
        {
            TimeZoneCode = timeZoneCode.Value,
            UtcTime = utcTime.ToUniversalTime()
        };

        var response = (LocalTimeFromUtcTimeResponse)service.Execute(request);

        return response.LocalTime;
        //var utcTime = utcTime.ToString("MM/dd/yyyy HH:mm:ss");
        //var localDateOnly = response.LocalTime.ToString("dd-MM-yyyy");
    }

    private int? RetrieveCurrentUsersSettings(IOrganizationService service)
    {
        var currentUserSettings = service.RetrieveMultiple(
        new QueryExpression("usersettings")
        {
            ColumnSet = new ColumnSet("localeid", "timezonecode"),
            Criteria = new FilterExpression
            {
                Conditions =
        {
            new ConditionExpression("systemuserid", ConditionOperator.EqualUserId)
        }
            }
        }).Entities[0].ToEntity<Entity>();

        return (int?)currentUserSettings.Attributes["timezonecode"];
    }

请注意与下面代码的区别在于以下几行；

}).Entities[0].ToEntity<Entity>();

return (int?)currentUserSettings.Attributes["timezonecode"]; 

Answer 1

CRM 将您可以在写入 CSV 之前删除的默认时间设置如下：

DateTime dateAndTime = (DateTime)dateDeliveryRequiredImage["requestdeliverby"];
var date = dateAndTime.ToString("dd-MM-yyyy");

如果您想将默认时间写入 CSV。你可以使用如下：

var date = dateAndTime.Date;

Dynamics CRM 2011 以 UTC 时间存储所有 DateTime 字段，因此通过使用“DateTime.UtcNow”方法，我们的日期将在访问数据库之前转换为 UTC 时间。例如，默认时间为 12:00:00，在数据库中将存储为 11:00:00。这就是为什么你在你的插件中得到 11PM。当我们的用户通过 CRM 读取日期时，它将被转换回他们的本地时区，并且用户将正确读取时间。

更新

IPluginExecutionContext context = (IPluginExecutionContext)
        serviceProvider.GetService(typeof(IPluginExecutionContext));


IOrganizationServiceFactory serviceFactory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);

// This retrieves the UTC time
DateTime dateAndTime = (DateTime)dateDeliveryRequiredImage["requestdeliverby"];

// This converts the UTC time to your local time
var localDate = RetrieveLocalTimeFromUTCTime(dateAndTime, service);

// It will give you the correct date
var date = dateAndTime.ToString("dd-MM-yyyy");

将 UTC 转换为本地时间。请检查以下代码：

    /// <summary>
    /// Retrive the local time from the UTC time.
    /// </summary>
    /// <param name="utcTime"></param>
    /// <param name="service"></param>
    private DateTime RetrieveLocalTimeFromUTCTime(DateTime utcTime, IOrganizationService service)
    {
        int? timeZoneCode = RetrieveCurrentUsersSettings(service);

        if (!timeZoneCode.HasValue)
            throw new Exception("Can't find time zone code");

        var request = new LocalTimeFromUtcTimeRequest
        {
            TimeZoneCode = timeZoneCode.Value,
            UtcTime = utcTime.ToUniversalTime()
        };

        var response = (LocalTimeFromUtcTimeResponse)service.Execute(request);

        return response.LocalTime;
        //var utcTime = utcTime.ToString("MM/dd/yyyy HH:mm:ss");
        //var localDateOnly = response.LocalTime.ToString("dd-MM-yyyy");
    }

    /// <summary>
    /// Retrieves the current users timezone code and locale id
    /// </summary>
    private int? RetrieveCurrentUsersSettings(IOrganizationService service)
    {
        var currentUserSettings = service.RetrieveMultiple(
        new QueryExpression("usersettings")
        {
            ColumnSet = new ColumnSet("localeid", "timezonecode"),
            Criteria = new FilterExpression
            {
                Conditions =
        {
            new ConditionExpression("systemuserid", ConditionOperator.EqualUserId)
        }
            }
        }).Entities[0].ToEntity<UserSettings>();

        return currentUserSettings.TimeZoneCode;
    }

参考：Sample: Retrieve time zone information