RE: [flexcoders] viewstack

Wed, 15 Jun 2005 04:48:30 -0700

Bikram,
 
The sample code is not something that we are making available (yet) for download.  If you are a
new user to Flex, I'd recommend that you spend some time becoming comfortable with the MXML
language, and with ActionScript 2.0, and with all the built-in effects (including Parallel and Sequence)
before you get adventurous and start trying to write your own effects in ActionScript 2.0.
 
A general point to everyone (which is in the FAQ for this list) is that rather than asking for code
on the flexcoders list, and expecting full samples to be emailed particular to your problem, you're
not going to get them .... rather you should post the code that you have written, and provide the
list with a small test case that exposes the gap in your understanding that prevents you getting
from where you are, to where you want to be.  If that gap is a full piece of source code, then
there's probably some reading to be done first...
 
Best wishes,
 
Steven
 
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From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Bikram Sahu
Sent: 15 June 2005 12:04
To: [email protected]
Subject: [flexcoders] viewstack

hi ,
 
 recently i am using the view stack i have two pages in that.i want like the page which defined in the url but not able to do also i can not understand the code so please help me to achive this type of page using animation give the sample code for that.previously i have put a question but no reply today i hope some one must help me i am anew user to flex 
http://www.richinternetapps.com/archives/000108.html
-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED]On Behalf Of Dirk Eismann
Sent: Wednesday, June 15, 2005 3:18 PM
To: [email protected]
Subject: RE: [flexcoders] Design flaw in DataGrid sorting

You can sort Date objects by sorting on their numerical getTime() value, i.e.

<mx:Script>
  private function sortColumn(evt:Object):Void {
    if (evt.target.sortDirection == "DESC") {
      var arrayFlags:Number = Array.DESCENDING;
    } else {
      var arrayFlags:Number = Array.ASCENDING;
    }
    evt.target.sortItems(sortByDate, arrayFlags);
  }

  public function sortByDate(itemA:Object, itemB:Object, flags:Number):Number {
    var a:Date = itemA.date;
    var b:Date = itemB.date;
    if (flags == Array.ASCENDING) {
      if (a.getTime() < b.getTime()) return -1;
      if (a.getTime() == b.getTime()) return 0;
      if (a.getTime() > b.getTime()) return 1;
    } else {
      if (a.getTime() < b.getTime()) return 1;
      if (a.getTime() == b.getTime()) return 0;
      if (a.getTime() > b.getTime()) return -1;
    }
  }
</mx:Script>

<mx:DataGrid
  id="dateGrid"
  dataProvider="{data}"
  headerRelease="sortColumn(event)"
  >
  <mx:columns>
    <mx:Array>
      <mx:DataGridColumn sortable="true" columnName="date" headerText="Date" />
    </mx:Array>
  </mx:columns>
</mx:DataGrid>


Dirk.


> -----Original Message-----
> From: [email protected] [mailto:[EMAIL PROTECTED]
> Behalf Of Sean McKibben
> Sent: Tuesday, June 14, 2005 9:35 PM
> To: [email protected]
> Subject: [flexcoders] Design flaw in DataGrid sorting
>
>
> I have to call the data grid's sorting mechanism flawed.
>
> Let's examine a case where you want to sort a dataGrid by a date 
> column. In all likelihood, you're going to have a labelFunction to 
> format your date objects into a string. Depending on your locale, 
> that string is probably not what you want to sort on (i.e. 02/04/05 
> comes before 02/03/06 on the calendar, but not as a string),
> so you'd 
> like to write a sortCompare function for that column.
>
> Unfortunately, the sortCompare function only receives the string 
> value from the labelFunction, so you'd either have to do some very 
> slow string parsing, or sort based on the results from the 
> labelFunction alone. You don't get a chance to compare any more 
> information about a row than the string returned by a labelFunction, 
> and the labelFunction can only return a string.
>
> Not a good way to do it, Macromedia!
>
> So, what is the best workaround? Let it sort once, then resort using 
> the headerRelease event and operating on the DataProvider? (assuming 
> headerRelease fires after sorting is done - contrary to the 
> documentation, but in line with Ailstair McLeod's tests)
>
>
> Sean
>
>
>
> 
> Yahoo! Groups Links
>
>
>
> 
>
>
>
>

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