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How to verify that a date is in the future?
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sbelini View Drop Down
IdeaBlade
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Joined: 13-Aug-2010
Location: Oakland
Posts: 786 		Post Options Post Options   Quote sbelini Quote  Post ReplyReply Direct Link To This Post Topic: How to verify that a date is in the future?
    Posted: 01-Feb-2012 at 2:43pm
Hi ajhops,
 
I'd suggest enabling this validation for property updates only (i.e. disable it during Instance validation).
By default a verifier ExecutionMode is set to VerifierExecutionModes.InstanceAndOnBeforeSetTriggers. i.e. during instance validation and when the property is updated (OnBeforeSetTriggers).
You could disable it by set the ExecutionMode to VerifierExecutionModes.OnBeforeSetTriggers:
 
public static Verifier GetFutureDateVerifier(Type type, string propertyName, bool isRequired) {
  var v = new DateTimeRangeVerifier(type, propertyName, isRequired, DateTime.Today.Date, DateTime.MaxValue);
  v.VerifierArgs.ErrorMessageInfo.ErrorMessage = "Must be on or after today.";
  v.VerifierOptions.ExecutionModes =  VerifierExecutionModes.OnAfterSetTriggers;
  return v;
}
 
Note the if this property is required, you might want a RequiredValueVerifier to execute on instance validation.
 
You can find more information about configuring verifiers in the DevForce Resource Center.
 
Regards,
   Silvio.
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ajhops View Drop Down
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Joined: 23-Aug-2010
Posts: 11 		Post Options Post Options   Quote ajhops Quote  Post ReplyReply Direct Link To This Post Posted: 31-Jan-2012 at 6:55am
What is the proper way to validate that a datetime*when set* is in the future? 

My field is "Publication Date". The business says that Publication Date must be today or after. This part is easy on the first save, but if the date passes and the user edits other fields on a day after publication - I get a server side validation error (but not client side). 

Silverlight if it matters.

Here is my static method to create this verifier:

public static Verifier GetFutureDateVerifier(Type type, string propertyName, bool isRequired)
		{
			var v = new DateTimeRangeVerifier(type, propertyName, isRequired, DateTime.Today.Date, DateTime.MaxValue);
			v.VerifierArgs.ErrorMessageInfo.ErrorMessage = "Must be on or after today.";
			return v;
		}

Thanks!!
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