Flex - Date serialization

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Flex - Date serialization

Does anyone know how to get actionscript to render a null date value '000:00:00T00:00:00'? I am calling a web service that expects date fields in the SOAP xml. I need some of these dates to serialize as null and I can't see how to produce null. The closest value I can get is '1899-11-30T00:00:00Z'. Below is the code I am using:

var dateStr:String = "0000-00-00T00:00:00+"; var emptyDate:Date = DateUtil.parseW3CDTF(dateStr); newReqData.DateTimeInit = emptyDate;

You can probably do it with a date formatter. You'll have to create a Date object but if you pass it to the DateFormatter, you can set the format to pretty much whatever you like. Here's the reference and I would recommend looking at the "Other Text" area:

http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/mx/formatters/DateFormatter.html

Shawn Yale 2010-08-25 01:11:15

The problem I am having is not with formatting, it is with the serialization. I want the SOAP call to render the universal NULL date, which I believe is '0000-00-00T00:00:00'. My .Net implementation of this web service call renders this value in the XML post. The Flex implementation does not. It renders '1899-11-30T00:00:00Z'. So the end result is that I get a date of '11/30/1899' in the database which is not desireable. With the .Net implementation, I get a nice NULL in the database.

Jim 2010-08-25 13:38:19

I've run into Date type conversion problems before with .Net. Many of these actually come from the start date each system (.Net and Flex) use as a base. I've never actually come across a need to pass a NULL date object(and can't really think of how/why I would need to). If your .Net is inserting a NULL value into the db, perhaps passing it as a NULL from Flex isn't the best approach. Either that or you could check for the 1899 value and simply handle it server-side.

Shawn Yale 2010-08-25 16:30:01

You could also try passing a string from Flex and parsing it into a date server-side. Just out of curiosity, if the value is NULL from Flex, why are you passing it at all?

Shawn Yale 2010-08-25 16:30:33

I am calling a web service provied by a commercial product, so I have no control in changing it on server side. The WSDL, which I have no control over expects a 'date' type, so I can't pass it a string. (tried that) The WSDL exposes data structures which I am populating and handing back as parameter in service method. The data structure has many date fields. (about 15) In my .Net project which calls this same web service, I don't populate the date fields and the SOAP xml renders this NULL date value that I eluded to earlier. And a NULL results in the DB. Flex forces me to populate the date.

Jim 2010-08-25 18:42:59

I totally understand and it's a tough position. Have you looked into WebOrb.net? I haven't dug into it, but there might be something there that can help. Unfortunately, the Date base class in Flex is final so you can't extend it. I tried several approaches and, much like you, I was only able to get back to 1899. I'll keep digging around, but I'm at a loss on this one.

Shawn Yale 2010-08-26 02:23:01

We are thinking that the solution may be to create a trigger in the database that changes the Flex date of '1899-11-30T00:00:00Z' to a NULL value. This is 'clugy' but will solve our problem.

Jim 2010-08-26 17:02:32

var d:Date=new Date(); d.setTime(-62167226400000); Alert.show(d.toString());

or as said Shawn Yale, read this.

Eugene 2010-08-25 08:15:30

http://vinothbabu.com/2010/03/31/formatting-the-selecteddate-in-datechooser/

Vinothbabu 2010-08-25 10:32:14

ansaurus

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Flex - Date serialization

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