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[Solved] RadScheduler TimeZoneOffset

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Scheduler

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Gary asked on 18 Sep 2008, 12:47 PM

Hi

I want to use the power of the TimeZoneOffset property on the radscheduler.
I have looked at the examples in the online demos and the programming pages and the example given shows a radscheduler with a dropdown populated with GMT +1 +2 etc etc.

Changing the value in the dropdown causes an ajax postback to get the new appointment items adjusted to the localized times.

My need is much simpler nut I can't quite seem to get it to work. I don't want the dropdown for the user. All I need is that if say a user puts in say a telephone conference at 18:00 uk time when a user in New York looks at the scheduler it shows it at 13:00. So all the code would seem to have to do somewhere once it has detected it's a request from a New york user is something like this.

int

hoursOffset = -5;
RadScheduler1.TimeZoneOffset = TimeSpan.Parse(hoursOffset.ToString());

Is this correct and where do I put such code? I've tried it on a little test project in onload but it doesn't seem to have any effect on the appointment times.

Thanks

Gary

5 Answers, 1 is accepted

answered on 19 Sep 2008, 10:21 AM

Hi Gary,

Please, try the following:

    
            protected void Page_Load(object sender, EventArgs e)  
        
                {  
        
                    int hoursOffset = -5;  
        
                    RadSchedulerXML.TimeZoneOffset = new TimeSpan(hoursOffset, 0, 0);  
        
                }

Greetings,
Peter
the Telerik team

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answered on 07 Aug 2009, 04:56 PM

I was doing the same code for TimeZoneOffset, but when I set it to [1:00:00] or any time span greater than zero [0:00:00], I get this:
ArgumentOutOfRangeException: The added or subtracted value results in an un-representable DateTime. Parameter name: value]

Any TimeSpan object with value less than 0 is fine, i.e. [-1:00:00] or [-4:00:00] works fine.

My code is as follows:
UserTimeZoneOffset = Convert.ToInt16(Request["UserTimeZoneOffset"].ToString());

timeSpan = new TimeSpan(UserTimeZoneOffset, 0, 0);
this.HRadScheduler.TimeZoneOffset = new TimeSpan(UserTimeZoneOffset, 0, 0);

Any ideas?

answered on 11 Aug 2009, 03:26 PM

Hi Peter,
Thanks for the link, I downloaded/installed latest release, but that didn't help, I am still getting the exception.

However, I used Add/Subtract function on the RadScheduler.TimeZoneOffset(), which seems to work. I still have to test to make sure, but, please let me know if this is a viable solution:

bool addHours = false;

if (UserTimeZoneOffset > 0)

{

addHours =

false;

}

else {

addHours =

true;

}

int UserTimeZoneOffsetAbs = Math.Abs(UserTimeZoneOffset);

timeSpan =

new TimeSpan(UserTimeZoneOffsetAbs, 0, 0);

if (addHours)

{

this.HelixRadScheduler.TimeZoneOffset.Add(timeSpan);

}

else

{

this.HelixRadScheduler.TimeZoneOffset.Subtract(timeSpan);

}

Thank you,
Piotr