I encountered a problem with passing xml file to Flex using Httpservice.
If the XML file I pass to the flex has only one item, e.g.:

<DATA>

<SoftwareName>Photoshop </SoftwareName>

</DATA>

Then if you use an arraycollection to save the data.

e.g.

[Bindable] public var SoftwareData:ArrayCollection;

http://casario.blogs.com/mmworld/2006/07/arraycollection.html

<s:HTTPService id=”getSoftware” url=”{SoftwareServer}” result=”getSoftware_resultHandler(event)” fault=”getSoftware_faultHandler(event)”  />

if we use “SoftwareData=getSoftware.lastResult.DATA.Software; “, it will not work for only one item.

The solution is :

if(getSoftware.lastResult.DATA.Software==null)

{ Alert.show(“No record”); }

else if(getSoftware.lastResult.DATA.Software is ObjectProxy)

{ SoftwareData=new ArrayCollection([getSoftware.lastResult.DATA.Software]); }

else{SoftwareData=getSoftware.lastResult.DATA.Software as ArrayCollection; }

Reference:  from a guy called chunk

http://casario.blogs.com/mmworld/2006/07/arraycollection.html

Today I spent some time working on the date arithmetic. I don’t believe there is built-in Date arithmetic in Flex. Therefore, there probably only two solutions.

One is using DateUtils open source library: http://flexdateutils.riaforge.org/

The other one is converting date into milliseconds and then do deductions or additions.